Collection: Screws - Countersunk

Screws -> Countersunk
Thread Size (C) Overall Length (L) Material Max Head Diameter Max Head Height Indicative
Image
Thread Size (C)
5/16-18 UNC (7.94mm)

Overall Length (L)
63.5
mm
+ 0.0 / - 1.02
(Equiv. 2.5 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-18 UNC - 7.94mm - 63.5 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079C-064-SK-C (100 Pcs)
Countersunk Screws - 5/16-18 UNC - 7.94mm - 63.5 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $102.14 AUD
Regular price $122.56 AUD Sale price $102.14 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C) Overall Length (L) Material Max Head Diameter Indicative
Image
Thread Size (C)
5/16-18 UNC (7.94mm)

Overall Length (L)
63.5
mm
+ 0.0 / - 1.02
(Equiv. 2.5 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 UNC - 7.94mm - 63.5 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079C-064-SK-C (100 Pcs)
Countersunk Screws - 5/16-18 UNC - 7.94mm - 63.5 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $102.14 AUD
Regular price $122.56 AUD Sale price $102.14 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-18 UNC (7.94mm)

Overall Length (L)
76.2
mm
+ 0.0 / - 1.55
(Equiv. 3 in.)
Material
304 Stainless

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-18 UNC - 7.94mm - 76.2 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079C-076-SK-S4 (100 Pcs)
Countersunk Screws - 5/16-18 UNC - 7.94mm - 76.2 mm - 304 Stainless Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $135.32 AUD
Regular price $162.38 AUD Sale price $135.32 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-18 UNC (7.94mm)

Overall Length (L)
76.2
mm
+ 0.0 / - 1.55
(Equiv. 3 in.)
Material
304 Stainless

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 UNC - 7.94mm - 76.2 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079C-076-SK-S4 (100 Pcs)
Countersunk Screws - 5/16-18 UNC - 7.94mm - 76.2 mm - 304 Stainless Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $135.32 AUD
Regular price $162.38 AUD Sale price $135.32 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-18 UNC (7.94mm)

Overall Length (L)
76.2
mm
+ 0.0 / - 1.55
(Equiv. 3 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-18 UNC - 7.94mm - 76.2 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079C-076-SK-CZ (100 Pcs)
Countersunk Screws - 5/16-18 UNC - 7.94mm - 76.2 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $153.23 AUD
Regular price $183.87 AUD Sale price $153.23 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-18 UNC (7.94mm)

Overall Length (L)
76.2
mm
+ 0.0 / - 1.55
(Equiv. 3 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 UNC - 7.94mm - 76.2 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079C-076-SK-CZ (100 Pcs)
Countersunk Screws - 5/16-18 UNC - 7.94mm - 76.2 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $153.23 AUD
Regular price $183.87 AUD Sale price $153.23 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-18 UNC (7.94mm)

Overall Length (L)
76.2
mm
+ 0.0 / - 1.55
(Equiv. 3 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-18 UNC - 7.94mm - 76.2 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079C-076-SK-C (100 Pcs)
Countersunk Screws - 5/16-18 UNC - 7.94mm - 76.2 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $126.77 AUD
Regular price $152.13 AUD Sale price $126.77 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-18 UNC (7.94mm)

Overall Length (L)
76.2
mm
+ 0.0 / - 1.55
(Equiv. 3 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 UNC - 7.94mm - 76.2 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079C-076-SK-C (100 Pcs)
Countersunk Screws - 5/16-18 UNC - 7.94mm - 76.2 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $126.77 AUD
Regular price $152.13 AUD Sale price $126.77 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-18 UNC (7.94mm)

Overall Length (L)
88.9
mm
+ 0.0 / - 1.55
(Equiv. 3.5 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-18 UNC - 7.94mm - 88.9 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079C-089-SK-C (5 Pcs)
Countersunk Screws - 5/16-18 UNC - 7.94mm - 88.9 mm - High Tensile Steel / Black Oxide Socket Screw
14 units (70 pcs) Available Now | Item Discontinued - Up to 14 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.66 AUD
Regular price $10.81 AUD Sale price $2.66 AUD
Excludes GST and overseas Taxes & Duties
Per 5
Quantity Required

14 units (70 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thread Size (C)
5/16-18 UNC (7.94mm)

Overall Length (L)
88.9
mm
+ 0.0 / - 1.55
(Equiv. 3.5 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 UNC - 7.94mm - 88.9 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079C-089-SK-C (5 Pcs)
Countersunk Screws - 5/16-18 UNC - 7.94mm - 88.9 mm - High Tensile Steel / Black Oxide Socket Screw
14 units (70 pcs) Available Now | Item Discontinued - Up to 14 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.66 AUD
Regular price $10.81 AUD Sale price $2.66 AUD
Excludes GST and overseas Taxes & Duties
Per 5
Quantity Required

14 units (70 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thread Size (C)
5/16-18 UNC (7.94mm)

Overall Length (L)
101.6
mm
+ 0.0 / - 1.55
(Equiv. 4 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-18 UNC - 7.94mm - 101.6 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079C-102-SK-C (100 Pcs)
Countersunk Screws - 5/16-18 UNC - 7.94mm - 101.6 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $141.32 AUD
Regular price $169.58 AUD Sale price $141.32 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-18 UNC (7.94mm)

Overall Length (L)
101.6
mm
+ 0.0 / - 1.55
(Equiv. 4 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 UNC - 7.94mm - 101.6 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079C-102-SK-C (100 Pcs)
Countersunk Screws - 5/16-18 UNC - 7.94mm - 101.6 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $141.32 AUD
Regular price $169.58 AUD Sale price $141.32 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
9.5
mm
+ 0.0 / - 0.76
(Equiv. 0.374 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 9.5 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-010-SK-C (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 9.5 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $33.23 AUD
Regular price Sale price $33.23 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
9.5
mm
+ 0.0 / - 0.76
(Equiv. 0.374 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 9.5 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-010-SK-C (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 9.5 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $33.23 AUD
Regular price Sale price $33.23 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
12.7
mm
+ 0.0 / - 0.76
(Equiv. 0.5 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 12.7 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-013-SK-CZ (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 12.7 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $70.95 AUD
Regular price Sale price $70.95 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
12.7
mm
+ 0.0 / - 0.76
(Equiv. 0.5 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 12.7 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-013-SK-CZ (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 12.7 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $70.95 AUD
Regular price Sale price $70.95 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
12.7
mm
+ 0.0 / - 0.76
(Equiv. 0.5 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 12.7 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-013-SK-C (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 12.7 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $33.23 AUD
Regular price Sale price $33.23 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
12.7
mm
+ 0.0 / - 0.76
(Equiv. 0.5 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 12.7 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-013-SK-C (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 12.7 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $33.23 AUD
Regular price Sale price $33.23 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
15.9
mm
+ 0.0 / - 0.76
(Equiv. 0.626 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 15.9 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-016-SK-C (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 15.9 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $36.32 AUD
Regular price Sale price $36.32 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
15.9
mm
+ 0.0 / - 0.76
(Equiv. 0.626 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 15.9 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-016-SK-C (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 15.9 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $36.32 AUD
Regular price Sale price $36.32 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
15.9
mm
+ 0.0 / - 0.76
(Equiv. 0.626 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 15.9 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-016-SK-CZ (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 15.9 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $40.05 AUD
Regular price $48.05 AUD Sale price $40.05 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
15.9
mm
+ 0.0 / - 0.76
(Equiv. 0.626 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 15.9 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-016-SK-CZ (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 15.9 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $40.05 AUD
Regular price $48.05 AUD Sale price $40.05 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(Equiv. 0.752 in.)
Material
304 Stainless

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 19.1 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-019-SK-S4 (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 19.1 mm - 304 Stainless Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $40.32 AUD
Regular price $48.38 AUD Sale price $40.32 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(Equiv. 0.752 in.)
Material
304 Stainless

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 19.1 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-019-SK-S4 (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 19.1 mm - 304 Stainless Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $40.32 AUD
Regular price $48.38 AUD Sale price $40.32 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(Equiv. 0.752 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 19.1 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-019-SK-CZ (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 19.1 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $40.95 AUD
Regular price $49.15 AUD Sale price $40.95 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(Equiv. 0.752 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 19.1 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-019-SK-CZ (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 19.1 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $40.95 AUD
Regular price $49.15 AUD Sale price $40.95 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(Equiv. 0.752 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 19.1 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-019-SK-C (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 19.1 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $41.05 AUD
Regular price Sale price $41.05 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(Equiv. 0.752 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 19.1 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-019-SK-C (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 19.1 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $41.05 AUD
Regular price Sale price $41.05 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(Equiv. 1 in.)
Material
304 Stainless

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 25.4 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-025-SK-S4 (5 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 25.4 mm - 304 Stainless Socket Screw
8 units (40 pcs) Available Now | Further orders can be expected around Wed, Sep 17, 2025
Regular price $3.95 AUD
Regular price $7.40 AUD Sale price $3.95 AUD
Excludes GST and overseas Taxes & Duties
Per 5
Quantity Required

8 units (40 pcs) Available Now. Backorder if more than 8.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(Equiv. 1 in.)
Material
304 Stainless

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 25.4 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-025-SK-S4 (5 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 25.4 mm - 304 Stainless Socket Screw
8 units (40 pcs) Available Now | Further orders can be expected around Wed, Sep 17, 2025
Regular price $3.95 AUD
Regular price $7.40 AUD Sale price $3.95 AUD
Excludes GST and overseas Taxes & Duties
Per 5
Quantity Required

8 units (40 pcs) Available Now. Backorder if more than 8.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(Equiv. 1 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 25.4 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-025-SK-CZ (100 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 25.4 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $91.95 AUD
Regular price $110.35 AUD Sale price $91.95 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(Equiv. 1 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 25.4 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-025-SK-CZ (100 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 25.4 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $91.95 AUD
Regular price $110.35 AUD Sale price $91.95 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(Equiv. 1 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 25.4 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-025-SK-C (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 25.4 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $44.23 AUD
Regular price Sale price $44.23 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(Equiv. 1 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 25.4 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-025-SK-C (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 25.4 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $44.23 AUD
Regular price Sale price $44.23 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(Equiv. 1.252 in.)
Material
304 Stainless

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 31.8 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-032-SK-S4 (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 31.8 mm - 304 Stainless Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $54.14 AUD
Regular price $64.96 AUD Sale price $54.14 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(Equiv. 1.252 in.)
Material
304 Stainless

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 31.8 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-032-SK-S4 (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 31.8 mm - 304 Stainless Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $54.14 AUD
Regular price $64.96 AUD Sale price $54.14 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(Equiv. 1.252 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 31.8 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-032-SK-CZ (100 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 31.8 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $100.41 AUD
Regular price $120.49 AUD Sale price $100.41 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(Equiv. 1.252 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 31.8 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-032-SK-CZ (100 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 31.8 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $100.41 AUD
Regular price $120.49 AUD Sale price $100.41 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(Equiv. 1.252 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 31.8 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-032-SK-C (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 31.8 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $39.23 AUD
Regular price $47.07 AUD Sale price $39.23 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(Equiv. 1.252 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 31.8 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-032-SK-C (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 31.8 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $39.23 AUD
Regular price $47.07 AUD Sale price $39.23 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(Equiv. 1.5 in.)
Material
304 Stainless

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 38.1 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-038-SK-S4 (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 38.1 mm - 304 Stainless Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $72.14 AUD
Regular price $86.56 AUD Sale price $72.14 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(Equiv. 1.5 in.)
Material
304 Stainless

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 38.1 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-038-SK-S4 (50 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 38.1 mm - 304 Stainless Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $72.14 AUD
Regular price $86.56 AUD Sale price $72.14 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(Equiv. 1.5 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 38.1 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-038-SK-CZ (100 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 38.1 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $118.32 AUD
Regular price $141.98 AUD Sale price $118.32 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(Equiv. 1.5 in.)
Material
Zinc Plated Steel

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 38.1 mm - Zinc Plated Steel Socket
Material: Zinc Plated Steel    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-038-SK-CZ (100 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 38.1 mm - Zinc Plated Steel Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $118.32 AUD
Regular price $141.98 AUD Sale price $118.32 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(Equiv. 1.5 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 38.1 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-038-SK-C (100 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 38.1 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $86.86 AUD
Regular price $104.24 AUD Sale price $86.86 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(Equiv. 1.5 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 38.1 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-038-SK-C (100 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 38.1 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $86.86 AUD
Regular price $104.24 AUD Sale price $86.86 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
44.5
mm
+ 0.0 / - 1.02
(Equiv. 1.752 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 44.5 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-045-SK-C (100 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 44.5 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $97.05 AUD
Regular price $116.45 AUD Sale price $97.05 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Thread Size (C)
5/16-24 UNF (7.94mm)

Overall Length (L)
44.5
mm
+ 0.0 / - 1.02
(Equiv. 1.752 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-24 UNF - 7.94mm - 44.5 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Type: 4.76 (3/16)   
Category: Screws - Countersunk - Socket
Part Number: SK079F-045-SK-C (100 Pcs)
Countersunk Screws - 5/16-24 UNF - 7.94mm - 44.5 mm - High Tensile Steel / Black Oxide Socket Screw
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $97.05 AUD
Regular price $116.45 AUD Sale price $97.05 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.