Washers - Cup - Brass

Washers -> Cup -> Brass

There are 4 products in the sub-categories of Washers - Cup - Brass. Browse the Washers - Cup - Brass products table. To narrow down the selection, please choose a sub-category from the links below.

Category Details

This category includes various types of cup washers.
  • Washers with a concave, cup-like shape, used with countersunk screws to provide a neat, finished look and evenly distribute the fastener's load.
  • Protects softer materials from damage caused by the fastener head.

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Washers - Cup - Brass category on the Small Parts & Bearings online store.
Nominal Inside Diameter (A) Nominal Outside Diameter (B) Nom. Section (C) Size Indicative
Image
Nominal Inside Diameter (A)
2.845
mm

(Equiv. 0.112 in.)
Nominal Outside Diameter (B)
9.50
mm

(Equiv. 0.374 in.)
Nom. Section (C)
2.10
mm

(Equiv. 0.083 in.)
Size
4 UNC / UNF
Cup Washers - 2.845x9.5x2.1 mm - Brass Nickel Plated
Material: Brass Nickel Plated   
Category: Washers - Cup - Brass - Nickel Plated
Part Number: W0028-CU-010-021-BNP (1000 Pcs)
Cup Washers - 2.845x9.5x2.1 mm - Brass Nickel Plated Washer
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 17, 2026
$113.23 AUD
$113.23 AUD
1000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A) Nominal Outside Diameter (B) Nom. Section (C) Size Indicative
Image
Nominal Inside Diameter (A)
2.845
mm

(Equiv. 0.112 in.)
Nominal Outside Diameter (B)
9.50
mm

(Equiv. 0.374 in.)
Nom. Section (C)
2.10
mm

(Equiv. 0.083 in.)
Size
4 UNC / UNF
Cup Washers - 2.845x9.5x2.1 mm - Brass Nickel Plated
Material: Brass Nickel Plated   
Category: Washers - Cup - Brass - Nickel Plated
Part Number: W0028-CU-010-021-BNP (1000 Pcs)
Cup Washers - 2.845x9.5x2.1 mm - Brass Nickel Plated Washer
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 17, 2026
$113.23 AUD
$113.23 AUD
1000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
3.5
mm

(Equiv. 0.138 in.)
Nominal Outside Diameter (B)
10.30
mm

(Equiv. 0.406 in.)
Nom. Section (C)
2.40
mm

(Equiv. 0.094 in.)
Size
6 UNC / UNF
Cup Washers - 3.5x10.3x2.4 mm - Brass Nickel Plated
Material: Brass Nickel Plated   
Category: Washers - Cup - Brass - Nickel Plated
Part Number: W0035-CU-010-024-BNP (100 Pcs)
Cup Washers - 3.5x10.3x2.4 mm - Brass Nickel Plated Washer
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 17, 2026
$7.23 AUD
$8.67 AUD $7.23 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
3.5
mm

(Equiv. 0.138 in.)
Nominal Outside Diameter (B)
10.30
mm

(Equiv. 0.406 in.)
Nom. Section (C)
2.40
mm

(Equiv. 0.094 in.)
Size
6 UNC / UNF
Cup Washers - 3.5x10.3x2.4 mm - Brass Nickel Plated
Material: Brass Nickel Plated   
Category: Washers - Cup - Brass - Nickel Plated
Part Number: W0035-CU-010-024-BNP (100 Pcs)
Cup Washers - 3.5x10.3x2.4 mm - Brass Nickel Plated Washer
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 17, 2026
$7.23 AUD
$8.67 AUD $7.23 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
4.762
mm

(Equiv. 0.187 in.)
Nominal Outside Diameter (B)
12.70
mm

(Equiv. 0.5 in.)
Nom. Section (C)
2.40
mm

(Equiv. 0.094 in.)
Size
10 UNC / UNF
Cup Washers - 4.762x12.7x2.4 mm - Brass Nickel Plated
Material: Brass Nickel Plated   
Category: Washers - Cup - Brass - Nickel Plated
Part Number: W0048-CU-013-024-BNP (1000 Pcs)
Cup Washers - 4.762x12.7x2.4 mm - Brass Nickel Plated Washer
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 17, 2026
$98.68 AUD
$118.42 AUD $98.68 AUD
1000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
4.762
mm

(Equiv. 0.187 in.)
Nominal Outside Diameter (B)
12.70
mm

(Equiv. 0.5 in.)
Nom. Section (C)
2.40
mm

(Equiv. 0.094 in.)
Size
10 UNC / UNF
Cup Washers - 4.762x12.7x2.4 mm - Brass Nickel Plated
Material: Brass Nickel Plated   
Category: Washers - Cup - Brass - Nickel Plated
Part Number: W0048-CU-013-024-BNP (1000 Pcs)
Cup Washers - 4.762x12.7x2.4 mm - Brass Nickel Plated Washer
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 17, 2026
$98.68 AUD
$118.42 AUD $98.68 AUD
1000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
5
mm

(Equiv. 0.197 in.)
Nominal Outside Diameter (B)
14.30
mm

(Equiv. 0.563 in.)
Nom. Section (C)
2.80
mm

(Equiv. 0.11 in.)
Size
M5 (5x0.8mm)
Cup Washers - 5x14.3x2.8 mm - Brass Nickel Plated
Material: Brass Nickel Plated   
Category: Washers - Cup - Brass - Nickel Plated
Part Number: W0050-CU-014-028-BNP (1000 Pcs)
Cup Washers - 5x14.3x2.8 mm - Brass Nickel Plated Washer
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 17, 2026
$115.68 AUD
$138.82 AUD $115.68 AUD
1000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
5
mm

(Equiv. 0.197 in.)
Nominal Outside Diameter (B)
14.30
mm

(Equiv. 0.563 in.)
Nom. Section (C)
2.80
mm

(Equiv. 0.11 in.)
Size
M5 (5x0.8mm)
Cup Washers - 5x14.3x2.8 mm - Brass Nickel Plated
Material: Brass Nickel Plated   
Category: Washers - Cup - Brass - Nickel Plated
Part Number: W0050-CU-014-028-BNP (1000 Pcs)
Cup Washers - 5x14.3x2.8 mm - Brass Nickel Plated Washer
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 17, 2026
$115.68 AUD
$138.82 AUD $115.68 AUD
1000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.