Plungers - Spring - Ring Handle - Locking - Steel

Plungers -> Spring -> Ring Handle -> Locking -> Steel

There are 3 products in the sub-categories of Plungers - Spring - Ring Handle - Locking - Steel. Browse the Plungers - Spring - Ring Handle - Locking - Steel products table.

Category Details

A selection of Steel Locking Ring 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 - Ring Handle - Locking - Steel 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 (G) Indicative
Image
Thread Size (A)
1/4-20 UNC (6.35mm)

Thread Length (B)
20.3
mm

(Equiv. 0.799 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
11.1
N
Tip Diameter (D)
3.9
mm
Tip Length (G)
6.4
mm
Spring Plungers - 1/4-20 UNC - 6.35mm - 20.3 mm - 4.5 N Ring Handle - Steel
Material: Steel    Body Length (B): 29.0 mm    F: 5.8 mm    Thread Length (H): 20.3    Ring Height (C): 27.4   
Part Number: PLST-064C-290-RCL-011
Spring Plungers - 1/4-20 UNC - 6.35mm - 20.3 mm - 4.5 N Ring Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$36.23 AUD
$36.23 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)
20.3
mm

(Equiv. 0.799 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
11.1
N
Spring Plungers - 1/4-20 UNC - 6.35mm - 20.3 mm - 4.5 N Ring Handle - Steel
Material: Steel    Tip Diameter (D): 3.9 mm    Tip Length (G): 6.4 mm    Body Length (B): 29.0 mm    F: 5.8 mm    Thread Length (H): 20.3    Ring Height (C): 27.4   
Part Number: PLST-064C-290-RCL-011
Spring Plungers - 1/4-20 UNC - 6.35mm - 20.3 mm - 4.5 N Ring Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$36.23 AUD
$36.23 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)
30.5
mm

(Equiv. 1.201 in.)
Initial Pressure (F1)
8.9
N
Final Pressure (F2)
17.8
N
Tip Diameter (D)
5.9
mm
Tip Length (G)
9.5
mm
Spring Plungers - 3/8-16 UNC - 9.53mm - 30.5 mm - 8.9 N Ring Handle - Steel
Material: Steel    Body Length (B): 42.7 mm    F: 8.9 mm    Thread Length (H): 30.5    Ring Height (C): 30.2   
Part Number: PLST-095C-427-RCL-018
Spring Plungers - 3/8-16 UNC - 9.53mm - 30.5 mm - 8.9 N Ring Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$33.14 AUD
$39.76 AUD $33.14 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)
30.5
mm

(Equiv. 1.201 in.)
Initial Pressure (F1)
8.9
N
Final Pressure (F2)
17.8
N
Spring Plungers - 3/8-16 UNC - 9.53mm - 30.5 mm - 8.9 N Ring Handle - Steel
Material: Steel    Tip Diameter (D): 5.9 mm    Tip Length (G): 9.5 mm    Body Length (B): 42.7 mm    F: 8.9 mm    Thread Length (H): 30.5    Ring Height (C): 30.2   
Part Number: PLST-095C-427-RCL-018
Spring Plungers - 3/8-16 UNC - 9.53mm - 30.5 mm - 8.9 N Ring Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$33.14 AUD
$39.76 AUD $33.14 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)
35.6
mm

(Equiv. 1.402 in.)
Initial Pressure (F1)
11.1
N
Final Pressure (F2)
22.2
N
Tip Diameter (D)
7.9
mm
Tip Length (G)
12.7
mm
Spring Plungers - 1/2-13 UNC - 12.7mm - 35.6 mm - 11.1 N Ring Handle - Steel
Material: Steel    Body Length (B): 50.8 mm    F: 11.7 mm    Thread Length (H): 35.6    Ring Height (C): 33.8   
Part Number: PLST-127C-508-RCL-022
Spring Plungers - 1/2-13 UNC - 12.7mm - 35.6 mm - 11.1 N Ring Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$43.59 AUD
$52.31 AUD $43.59 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)
35.6
mm

(Equiv. 1.402 in.)
Initial Pressure (F1)
11.1
N
Final Pressure (F2)
22.2
N
Spring Plungers - 1/2-13 UNC - 12.7mm - 35.6 mm - 11.1 N Ring Handle - Steel
Material: Steel    Tip Diameter (D): 7.9 mm    Tip Length (G): 12.7 mm    Body Length (B): 50.8 mm    F: 11.7 mm    Thread Length (H): 35.6    Ring Height (C): 33.8   
Part Number: PLST-127C-508-RCL-022
Spring Plungers - 1/2-13 UNC - 12.7mm - 35.6 mm - 11.1 N Ring Handle - Steel Plunger
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$43.59 AUD
$52.31 AUD $43.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.