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Retractable Spring Plungers Knurled

In production

Knurled Knob Retractable Plunger Pins can be used in machining applications, for positioning, as loading pins, alignment pins, and indexing devices. These hand retractable pins offer a fast and convenient way to adjust or remove accessories on equipment.

These Plunger Pins have a knurled knob and a low profile design, making them a great choice for applications with limited space. A lock-out features is available for a hands-free environment. The lock-out features keeps the plunger pin in a retracted (open) position, allowing the user to make final adjustments on the equipment, using two hands. An anti-vibration lock patch can also be added on to threads.

Our pins come in two material options. Low Carbon Steel offers strength and durability at a low-cost, making it a good economical choice. The zinc plating finish provides good corrosion resistance. Stainless Steel provides high strength and hardness as well as superior corrosion resistance properties.

  • Pin Material: Stainless Steel and Steel
  • Plating: Plain and Clear Zinc

Other configurations, materials and customizations are available upon request.

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6 results
Product SKUs information
Item Code Price range Availability Thread Size Threadlocker Material Thread Length View
$18.12 - $23.69 Request the lead time here
1/4-20
Yes
Stainless Steel
0.500 in
$24.75 - $32.37 Request the lead time here
1/2-13
Yes
Stainless Steel
0.875 in
$18.12 - $23.69 Request the lead time here
1/4-20
No
Stainless Steel
0.500 in
$11.24 - $14.67 Request the lead time here
1/4-20
Yes
Steel
0.500 in
$10.13 - $13.23 Request the lead time here
5/16-18
Yes
Steel
0.625 in
$9.53 - $12.44 Request the lead time here
3/8-16
Yes
Steel
0.750 in
Retractable Spring Plunger - Knurled; 1/4-20; Thread Length - 12.7 mm | 0.500 in; Lock-Out; Natural

SP4C--SM--LL-70

Price Range
$23.69 - $18.12

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    1/4-20
  • Finish
    Natural
  • Material
    Stainless Steel
  • Thread Length
    0.500 in
  • Locking Function
    Lock-Out
Retractable Spring Plunger - Knurled; 1/2-13; Thread Length - 22.2 mm | 0.875 in; Lock-Out; Natural

SP8C--SM--LL-70

Price Range
$32.37 - $24.75

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    1/2-13
  • Finish
    Natural
  • Material
    Stainless Steel
  • Thread Length
    0.875 in
  • Locking Function
    Lock-Out
Retractable Spring Plunger - Knurled; 1/4-20; Thread Length - 12.7 mm | 0.500 in; Non Lock-Out; Natural

SP4C--SM---L-70

Price Range
$23.69 - $18.12

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    1/4-20
  • Finish
    Natural
  • Material
    Stainless Steel
  • Thread Length
    0.500 in
  • Locking Function
    Non Lock-Out
Retractable Spring Plunger - Knurled; 1/4-20; Thread Length - 12.7 mm | 0.500 in; Lock-Out; Zinc Plated

SP4C--SM--LL-21

Price Range
$14.67 - $11.24

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    1/4-20
  • Finish
    Zinc Plated
  • Material
    Steel
  • Thread Length
    0.500 in
  • Locking Function
    Lock-Out
Retractable Spring Plunger - Knurled; 5/16-18; Thread Length - 15.9 mm | 0.625 in; Lock-Out; Zinc Plated

SP5C--SM--LL-21

Price Range
$13.23 - $10.13

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    5/16-18
  • Finish
    Zinc Plated
  • Material
    Steel
  • Thread Length
    0.625 in
  • Locking Function
    Lock-Out
Retractable Spring Plunger - Knurled; 3/8-16; Thread Length - 19.1 mm | 0.750 in; Lock-Out; Zinc Plated

SP6C--SM--LL-21

Price Range
$12.44 - $9.53

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    3/8-16
  • Finish
    Zinc Plated
  • Material
    Steel
  • Thread Length
    0.750 in
  • Locking Function
    Lock-Out