Stainless Steel Spring Plungers

Jergens Spring Plungers, unlike conventional spring plungers, are machined in one piece. The spring is assembled from the top so that there is no need for a set screw. Our Spring Plungers do not have a set screw that can loosen or separate from the plunger body. The advantage is no lost springs and no need for “easy-out” tools. When adjusting Solid Drive, you can be sure the plunger body is turning and not a set screw.

Features & Benefits:
  • Single-unit construction for better reliability
  • No set screw to separate from the plunger body
  • No need for “easy-out” tools
  • Close tolerance between tip and body
  • Conforms to TCMA dimensional standards
  • Patch-style locking element
  • Hex drive in the rear for spring plunger insertion
  • Special materials and sizes available upon requests

Material Specifications:
  • Body Material: 303 Stainless Steel 
  • Tip Material: 303 Stainless Steel
  • Spring: 17-7 PH Stainless Steel
  • Thread: 2A-UNC
  • Plunger tips are color-coded to indicate light or heavy force:
    • Silver: Steel Tip, Light Force
    • Black = Steel Tip, Heavy Force

Note(s):
For easy insertion of Spring Plungers with locking elements, the tapped hole should be countersunk at least 0.030-0.045" (0.76mm-1.14mm) larger than the major diameter of the plunger.

Stainless Steel Spring Plungers

Select a part number for CAD drawings, price and stock availability.

Part Number CAD Unit Thread Size A Initial Force (lbs) Final Force (lbs) B (In) C (In) D (In) Hex Size E Locking Element
26936 Inch 6-32 1.5 4.5 17/32 1/16 0.046 3/64 Yes
26937 Inch 8-32 2.7 7.3 5/8 3/32 0.070 5/64 Yes
26938 Inch 10-32 2.9 11.1 3/4 1/8 0.093 3/32 Yes
26939 Inch 1/4-20 3.0 13.0 1 3/16 0.119 1/8 Yes
26940 Inch 1/4-28 3.0 13.0 1 3/16 0.119 1/8 Yes
26941 Inch 5/16-18 3.0 15.0 1 3/16 0.135 5/32 Yes
26942 Inch 3/8-16 5.5 14.5 1 1/8 3/16 0.186 3/16 Yes
26943 Inch 1/2-13 6.6 17.4 1 1/4 1/4 0.248 1/4 Yes
26944 Inch 5/8-11 10.5 25.5 1 1/2 5/16 0.310 5/16 Yes
26945 Inch 3/4-10 6.7 37.3 1 3/4 5/16 0.374 3/8 Yes
27011 Inch 6-32 1.5 4.5 17/32 1/16 0.046 3/64 No
27012 Inch 8-32 2.7 7.3 5/8 3/32 0.070 5/64 No
27013 Inch 10-32 2.9 11.1 3/4 1/8 0.093 3/32 No
27014 Inch 1/4-20 3.0 13.0 1 3/16 0.119 1/8 No
27015 Inch 1/4-28 3.0 13.0 1 3/16 0.119 1/8 No
27016 Inch 5/16-18 3.0 15.0 1 3/16 0.135 5/32 No
27017 Inch 3/8-16 5.5 14.5 1 1/8 3/16 0.186 3/16 No
27018 Inch 1/2-13 6.6 17.4 1 1/4 1/4 0.248 1/4 No
27019 Inch 5/8-11 10.5 25.5 1 1/2 5/16 0.310 5/16 No
27020 Inch 3/4-10 6.7 37.3 1 3/4 5/16 0.374 3/8 No
27031 Inch 6-32 0.5 1.5 17/32 1/16 0.046 3/64 No
27034 Inch 1/4-20 1.0 4.0 1 3/16 0.119 1/8 No
27036 Inch 5/16-18 1.5 4.5 1 3/16 0.135 5/32 No
27037 Inch 3/8-16 2.8 7.2 1 1/8 3/16 0.186 3/16 No
27038 Inch 1/2-13 2.7 9.3 1 1/4 1/4 0.248 1/4 No
27039 Inch 5/8-11 3.5 10.5 1 1/2 5/16 0.310 5/16 No
27040 Inch 3/4-10 5.5 14.5 1 3/4 5/16 0.374 3/8 No
27336 Inch 6-32 0.5 1.5 17/32 1/16 0.046 3/64 Yes
27337 Inch 8-32 0.7 2.3 5/8 3/32 0.070 5/64 Yes
27338 Inch 10-32 1.3 2.7 3/4 1/8 0.093 3/32 Yes
27339 Inch 1/4-20 1.0 4.0 1 3/16 0.119 1/8 Yes
27340 Inch 1/4-28 1.0 4.0 1 3/16 0.119 1/8 Yes
27341 Inch 5/16-18 1.5 4.5 1 3/16 0.135 5/32 Yes
27342 Inch 3/8-16 2.8 7.2 1 1/8 3/16 0.186 3/16 Yes
27343 Inch 1/2-13 2.7 9.3 1 1/4 1/4 0.248 1/4 Yes
27344 Inch 5/8-11 3.5 10.5 1 1/2 5/16 0.310 5/16 Yes
27345 Inch 3/4-10 5.5 14.5 1 3/4 5/16 0.374 3/8 Yes
Part Number CAD Unit Thread Size A Initial Force (kg) Final Force (kg) B (mm) C (mm) D (mm) Hex Size E Locking Element
30480 Metric M4 x 0.7 1.22 3.29 16 2.5 1.78 2.0 No
30482 Metric M6 x 1.0 1.35 5.85 25 5.0 3.02 3.0 No
30483 Metric M8 x 1.25 1.35 6.75 25 5.0 3.43 4.0 No
30484 Metric M10 x 1.5 2.48 6.53 29 5.0 4.72 5.0 No
30485 Metric M12 x 1.75 2.97 7.83 32 6.0 6.30 6.0 No
30487 Metric M16 x 2.0 4.73 11.48 38 8.0 7.87 8.0 No
30490 Metric M4 x 0.7 1.22 3.29 16 2.5 1.78 2.0 Yes
30491 Metric M5 x 0.8 1.31 5.00 19 3.0 2.36 2.5 Yes
30492 Metric M6 x 1.0 1.35 5.85 25 5.0 3.02 3.0 Yes
30493 Metric M8 x 1.25 1.35 6.75 25 5.0 3.43 4.0 Yes
30494 Metric M10 x 1.5 2.48 6.53 29 5.0 4.72 5.0 Yes
30495 Metric M12 x 1.75 2.97 7.83 32 6.0 6.30 6.0 Yes
30497 Metric M16 x 2.0 4.73 11.48 38 8.0 7.87 8.0 Yes
30498 Metric M20 x 2.5 3.05 16.95 44 8.0 9.50 10.0 Yes
30880 Metric M4 x 0.7 0.32 1.04 16 2.5 1.78 2.0 No
30882 Metric M6 x 1.0 0.45 1.80 25 5.0 3.02 3.0 No
30883 Metric M8 x 1.25 0.68 2.03 25 5.0 3.43 4.0 No
30884 Metric M10 x 1.5 1.26 3.26 29 5.0 4.72 5.0 No
30885 Metric M12 x 1.75 1.22 4.21 32 6.0 6.30 6.0 No
30887 Metric M16 x 2.0 1.58 4.76 38 8.0 7.87 8.0 No
30890 Metric M4 x 0.7 0.32 1.04 16 2.5 1.78 2.0 Yes
30891 Metric M5 x 0.8 0.59 1.22 19 3.0 2.36 2.5 Yes
30892 Metric M6 x 1.0 0.45 1.80 25 5.0 3.02 3.0 Yes
30893 Metric M8 x 1.25 0.68 2.03 25 5.0 3.43 4.0 Yes
30894 Metric M10 x 1.5 1.26 3.26 29 5.0 4.72 5.0 Yes
30895 Metric M12 x 1.75 1.22 4.21 32 6.0 6.30 6.0 Yes
30898 Metric M20 x 2.5 2.50 6.58 44 8.0 9.50 10.0 Yes

Documents and Videos

  • Operating Manual
  • Operating Manual - 81600 ONLY
  • Jergens Production Vise System
  • Jergens Production Vises Features and Benefits
  • Vertical Machine Solutions
  • Horizontal Machine Solutions
  • Hydraulic Production Vises
  • Production Vises

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