Plungers - Spring - Hex Drive Handle - Locking

Plungers -> Spring -> Hex Drive Handle -> Locking

There are 8 products in the sub-categories of Plungers - Spring - Hex Drive Handle - Locking. Browse the Plungers - Spring - Hex Drive Handle - Locking products table.

Category Details

A selection of Locking Hex Drive Handle Spring Plungers. Items shown with Long-Lok have a dry threadlocking sealant applied to thread.

  • A compact mechanical component with a spring-loaded ball or pin inside a housing that applies consistent, predictable force. Internal spring compresses when pressure is applied to the ball or pin, allowing it to settle into designated positions or recess.
  • Provides a reliable holding or locating mechanism in various industrial applications where precise alignment or securing of parts is needed.
  • Also known as ball plungers or spring-loaded pins.

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Plungers - Spring - Hex Drive Handle - Locking category on the Small Parts & Bearings online store.
Thread Size (A) Thread Length (B) Initial Pressure (F1) Final Pressure (F2) Tip Diameter (D) Tip Length (C) Indicative
Image
Thread Size (A)
1/4-20 UNC (6.35mm)

Thread Length (B)
10.2
mm

(Equiv. 0.402 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
17.8
N
Tip Diameter (D)
3.1
mm
Tip Length (C)
3.2
mm
Spring Plungers - 1/4-20 UNC - 6.35mm - 10.2 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Head Diameter (E): 19.1 mm    Overall Length (F): 20.5    Socket Size (G): 3.2    Additional: With Locking Element   
Part Number: PLST-064C-102-HXCLLK-018
Spring Plungers - 1/4-20 UNC - 6.35mm - 10.2 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$33.86 AUD
$40.64 AUD $33.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A) Thread Length (B) Initial Pressure (F1) Final Pressure (F2) Indicative
Image
Thread Size (A)
1/4-20 UNC (6.35mm)

Thread Length (B)
10.2
mm

(Equiv. 0.402 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
17.8
N
Spring Plungers - 1/4-20 UNC - 6.35mm - 10.2 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Tip Diameter (D): 3.1 mm    Tip Length (C): 3.2 mm    Head Diameter (E): 19.1 mm    Overall Length (F): 20.5    Socket Size (G): 3.2    Additional: With Locking Element   
Part Number: PLST-064C-102-HXCLLK-018
Spring Plungers - 1/4-20 UNC - 6.35mm - 10.2 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$33.86 AUD
$40.64 AUD $33.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A)
1/4-20 UNC (6.35mm)

Thread Length (B)
10.2
mm

(Equiv. 0.402 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
17.8
N
Tip Diameter (D)
3.1
mm
Tip Length (C)
3.2
mm
Spring Plungers - 1/4-20 UNC - 6.35mm - 10.2 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Head Diameter (E): 19.1 mm    Overall Length (F): 20.5    Socket Size (G): 3.2   
Part Number: PLST-064C-102-HXCL-018
Spring Plungers - 1/4-20 UNC - 6.35mm - 10.2 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$30.59 AUD
$36.71 AUD $30.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A)
1/4-20 UNC (6.35mm)

Thread Length (B)
10.2
mm

(Equiv. 0.402 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
17.8
N
Spring Plungers - 1/4-20 UNC - 6.35mm - 10.2 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Tip Diameter (D): 3.1 mm    Tip Length (C): 3.2 mm    Head Diameter (E): 19.1 mm    Overall Length (F): 20.5    Socket Size (G): 3.2   
Part Number: PLST-064C-102-HXCL-018
Spring Plungers - 1/4-20 UNC - 6.35mm - 10.2 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$30.59 AUD
$36.71 AUD $30.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

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

Thread Length (B)
13.5
mm

(Equiv. 0.531 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
26.7
N
Tip Diameter (D)
3.9
mm
Tip Length (C)
4.8
mm
Spring Plungers - 5/16-18 UNC - 7.94mm - 13.5 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Head Diameter (E): 22.2 mm    Overall Length (F): 27.2    Socket Size (G): 3.2   
Part Number: PLST-079C-135-HXCL-027
Spring Plungers - 5/16-18 UNC - 7.94mm - 13.5 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$48.59 AUD
$58.31 AUD $48.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

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

Thread Length (B)
13.5
mm

(Equiv. 0.531 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
26.7
N
Spring Plungers - 5/16-18 UNC - 7.94mm - 13.5 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Tip Diameter (D): 3.9 mm    Tip Length (C): 4.8 mm    Head Diameter (E): 22.2 mm    Overall Length (F): 27.2    Socket Size (G): 3.2   
Part Number: PLST-079C-135-HXCL-027
Spring Plungers - 5/16-18 UNC - 7.94mm - 13.5 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$48.59 AUD
$58.31 AUD $48.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

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

Thread Length (B)
13.5
mm

(Equiv. 0.531 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
26.7
N
Tip Diameter (D)
3.9
mm
Tip Length (C)
4.8
mm
Spring Plungers - 5/16-18 UNC - 7.94mm - 13.5 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Head Diameter (E): 22.2 mm    Overall Length (F): 27.2    Socket Size (G): 3.2    Additional: With Locking Element   
Part Number: PLST-079C-135-HXCLLK-027
Spring Plungers - 5/16-18 UNC - 7.94mm - 13.5 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$103.05 AUD
$123.65 AUD $103.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

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

Thread Length (B)
13.5
mm

(Equiv. 0.531 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
26.7
N
Spring Plungers - 5/16-18 UNC - 7.94mm - 13.5 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Tip Diameter (D): 3.9 mm    Tip Length (C): 4.8 mm    Head Diameter (E): 22.2 mm    Overall Length (F): 27.2    Socket Size (G): 3.2    Additional: With Locking Element   
Part Number: PLST-079C-135-HXCLLK-027
Spring Plungers - 5/16-18 UNC - 7.94mm - 13.5 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$103.05 AUD
$123.65 AUD $103.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A)
3/8-16 UNC (9.53mm)

Thread Length (B)
19.1
mm

(Equiv. 0.752 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
35.6
N
Tip Diameter (D)
4.7
mm
Tip Length (C)
5.5
mm
Spring Plungers - 3/8-16 UNC - 9.53mm - 19.1 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Head Diameter (E): 25.4 mm    Overall Length (F): 32.0    Socket Size (G): 5.5   
Part Number: PLST-095C-191-HXCL-036
Spring Plungers - 3/8-16 UNC - 9.53mm - 19.1 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$36.50 AUD
$43.80 AUD $36.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A)
3/8-16 UNC (9.53mm)

Thread Length (B)
19.1
mm

(Equiv. 0.752 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
35.6
N
Spring Plungers - 3/8-16 UNC - 9.53mm - 19.1 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Tip Diameter (D): 4.7 mm    Tip Length (C): 5.5 mm    Head Diameter (E): 25.4 mm    Overall Length (F): 32.0    Socket Size (G): 5.5   
Part Number: PLST-095C-191-HXCL-036
Spring Plungers - 3/8-16 UNC - 9.53mm - 19.1 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$36.50 AUD
$43.80 AUD $36.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A)
3/8-16 UNC (9.53mm)

Thread Length (B)
19.1
mm

(Equiv. 0.752 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
35.6
N
Tip Diameter (D)
4.7
mm
Tip Length (C)
5.5
mm
Spring Plungers - 3/8-16 UNC - 9.53mm - 19.1 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Head Diameter (E): 25.4 mm    Overall Length (F): 32.0    Socket Size (G): 5.5    Additional: With Locking Element   
Part Number: PLST-095C-191-HXCLLK-036
Spring Plungers - 3/8-16 UNC - 9.53mm - 19.1 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$37.41 AUD
$44.89 AUD $37.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A)
3/8-16 UNC (9.53mm)

Thread Length (B)
19.1
mm

(Equiv. 0.752 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
35.6
N
Spring Plungers - 3/8-16 UNC - 9.53mm - 19.1 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Tip Diameter (D): 4.7 mm    Tip Length (C): 5.5 mm    Head Diameter (E): 25.4 mm    Overall Length (F): 32.0    Socket Size (G): 5.5    Additional: With Locking Element   
Part Number: PLST-095C-191-HXCLLK-036
Spring Plungers - 3/8-16 UNC - 9.53mm - 19.1 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$37.41 AUD
$44.89 AUD $37.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A)
1/2-13 UNC (12.7mm)

Thread Length (B)
16.5
mm

(Equiv. 0.65 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
44.5
N
Tip Diameter (D)
6.3
mm
Tip Length (C)
6.4
mm
Spring Plungers - 1/2-13 UNC - 12.7mm - 16.5 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Head Diameter (E): 31.8 mm    Overall Length (F): 35.1    Socket Size (G): 6.4   
Part Number: PLST-127C-165-HXCL-044
Spring Plungers - 1/2-13 UNC - 12.7mm - 16.5 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$52.68 AUD
$63.22 AUD $52.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A)
1/2-13 UNC (12.7mm)

Thread Length (B)
16.5
mm

(Equiv. 0.65 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
44.5
N
Spring Plungers - 1/2-13 UNC - 12.7mm - 16.5 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Tip Diameter (D): 6.3 mm    Tip Length (C): 6.4 mm    Head Diameter (E): 31.8 mm    Overall Length (F): 35.1    Socket Size (G): 6.4   
Part Number: PLST-127C-165-HXCL-044
Spring Plungers - 1/2-13 UNC - 12.7mm - 16.5 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$52.68 AUD
$63.22 AUD $52.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A)
1/2-13 UNC (12.7mm)

Thread Length (B)
16.5
mm

(Equiv. 0.65 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
44.5
N
Tip Diameter (D)
6.3
mm
Tip Length (C)
6.4
mm
Spring Plungers - 1/2-13 UNC - 12.7mm - 16.5 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Head Diameter (E): 31.8 mm    Overall Length (F): 35.1    Socket Size (G): 6.4    Additional: With Locking Element   
Part Number: PLST-127C-165-HXCLLK-044
Spring Plungers - 1/2-13 UNC - 12.7mm - 16.5 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$39.86 AUD
$47.84 AUD $39.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A)
1/2-13 UNC (12.7mm)

Thread Length (B)
16.5
mm

(Equiv. 0.65 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
44.5
N
Spring Plungers - 1/2-13 UNC - 12.7mm - 16.5 mm - 4.5 N Hex Drive Handle - Steel
Material: Steel    Tip Diameter (D): 6.3 mm    Tip Length (C): 6.4 mm    Head Diameter (E): 31.8 mm    Overall Length (F): 35.1    Socket Size (G): 6.4    Additional: With Locking Element   
Part Number: PLST-127C-165-HXCLLK-044
Spring Plungers - 1/2-13 UNC - 12.7mm - 16.5 mm - 4.5 N Hex Drive Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$39.86 AUD
$47.84 AUD $39.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.