Delrin Tip / 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:
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Body Material: Low Carbon Steel
-
Body Finish: Black Oxide
-
Tip Material: Delrin
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Thread: 2A-UNC
-
Plunger tips are color coded to indicate light or heavy force:
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White: Delrin Tip, Light Force
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Blue: Delrin 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.
Delrin Tip / 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 30421 |
|
Inch | 6-32 | 1.5 | 4.5 | 17/32 | 1/16 | 0.046 | 3/64 | No |
| 30422 |
|
Inch | 8-32 | 2.7 | 7.3 | 5/8 | 3/32 | 0.070 | 5/64 | No |
| 30423 |
|
Inch | 10-32 | 2.9 | 11.1 | 3/4 | 1/8 | 0.093 | 3/32 | No |
| 30424 |
|
Inch | 1/4-20 | 3.0 | 13.0 | 1 | 3/16 | 0.119 | 1/8 | No |
| 30425 |
|
Inch | 1/4-28 | 3.0 | 13.0 | 1 | 3/16 | 0.119 | 1/8 | No |
| 30426 |
|
Inch | 5/16-18 | 3.0 | 15.0 | 1 | 3/16 | 0.135 | 5/32 | No |
| 30427 |
|
Inch | 3/8-16 | 5.5 | 14.5 | 1 1/8 | 3/16 | 0.186 | 3/16 | No |
| 30428 |
|
Inch | 1/2-13 | 6.6 | 17.4 | 1 1/4 | 1/4 | 0.248 | 1/4 | No |
| 30429 |
|
Inch | 5/8-11 | 10.5 | 25.5 | 1 1/2 | 5/16 | 0.310 | 5/16 | No |
| 30521 |
|
Inch | 6-32 | 1.5 | 4.5 | 17/32 | 1/16 | 0.046 | 3/64 | Yes |
| 30522 |
|
Inch | 8-32 | 2.7 | 7.3 | 5/8 | 3/32 | 0.070 | 5/64 | Yes |
| 30523 |
|
Inch | 10-32 | 2.9 | 11.1 | 3/4 | 1/8 | 0.093 | 3/32 | Yes |
| 30524 |
|
Inch | 1/4-20 | 3.0 | 13.0 | 1 | 3/16 | 0.119 | 1/8 | Yes |
| 30525 |
|
Inch | 1/4-28 | 3.0 | 13.0 | 1 | 3/16 | 0.119 | 1/8 | Yes |
| 30526 |
|
Inch | 5/16-18 | 3.0 | 15.0 | 1 | 3/16 | 0.135 | 5/32 | Yes |
| 30527 |
|
Inch | 3/8-16 | 5.5 | 14.5 | 1 1/8 | 3/16 | 0.186 | 3/16 | Yes |
| 30528 |
|
Inch | 1/2-13 | 6.6 | 17.4 | 1 1/4 | 1/4 | 0.248 | 1/4 | Yes |
| 30529 |
|
Inch | 5/8-11 | 10.5 | 25.5 | 1 1/2 | 5/16 | 0.310 | 5/16 | Yes |
| 30821 |
|
Inch | 6-32 | 0.5 | 1.5 | 17/32 | 1/16 | 0.046 | 3/64 | No |
| 30822 |
|
Inch | 8-32 | 0.7 | 2.3 | 5/8 | 3/32 | 0.070 | 5/64 | No |
| 30823 |
|
Inch | 10-32 | 1.3 | 2.7 | 3/4 | 1/8 | 0.093 | 3/32 | No |
| 30824 |
|
Inch | 1/4-20 | 1.0 | 4.0 | 1 | 3/16 | 0.119 | 1/8 | No |
| 30825 |
|
Inch | 1/4-28 | 1.0 | 4.0 | 1 | 3/16 | 0.119 | 1/8 | No |
| 30826 |
|
Inch | 5/16-18 | 1.5 | 4.5 | 1 | 3/16 | 0.135 | 5/32 | No |
| 30827 |
|
Inch | 3/8-16 | 2.8 | 7.2 | 1 1/8 | 3/16 | 0.186 | 3/16 | No |
| 30828 |
|
Inch | 1/2-13 | 2.7 | 9.3 | 1 1/4 | 1/4 | 0.248 | 1/4 | No |
| 30829 |
|
Inch | 5/8-11 | 3.5 | 10.5 | 1 1/2 | 5/16 | 0.310 | 5/16 | No |
| 30921 |
|
Inch | 6-32 | 0.5 | 1.5 | 17/32 | 1/16 | 0.046 | 3/64 | Yes |
| 30922 |
|
Inch | 8-32 | 0.7 | 2.3 | 5/8 | 3/32 | 0.070 | 5/64 | Yes |
| 30923 |
|
Inch | 10-32 | 1.3 | 2.7 | 3/4 | 1/8 | 0.093 | 3/32 | Yes |
| 30924 |
|
Inch | 1/4-20 | 1.0 | 4.0 | 1 | 3/16 | 0.119 | 1/8 | Yes |
| 30925 |
|
Inch | 1/4-28 | 1.0 | 4.0 | 1 | 3/16 | 0.119 | 1/8 | Yes |
| 30926 |
|
Inch | 5/16-18 | 1.5 | 4.5 | 1 | 3/16 | 0.135 | 5/32 | Yes |
| 30927 |
|
Inch | 3/8-16 | 2.8 | 7.2 | 1 1/8 | 3/16 | 0.186 | 3/16 | Yes |
| 30928 |
|
Inch | 1/2-13 | 2.7 | 9.3 | 1 1/4 | 1/4 | 0.248 | 1/4 | Yes |
| 30929 |
|
Inch | 5/8-11 | 3.5 | 10.5 | 1 1/2 | 5/16 | 0.310 | 5/16 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 30450 |
|
Metric | M4 x 0.7 | 1.22 | 3.29 | 16 | 2.5 | 1.78 | 2.0 | Yes |
| 30451 |
|
Metric | M5 x 0.8 | 1.31 | 5.00 | 19 | 3.0 | 2.36 | 2.5 | Yes |
| 30452 |
|
Metric | M6 x 1.0 | 1.35 | 5.85 | 25 | 5.0 | 3.02 | 3.0 | Yes |
| 30453 |
|
Metric | M8 x 1.25 | 1.35 | 6.75 | 25 | 5.0 | 3.43 | 4.0 | Yes |
| 30454 |
|
Metric | M10 x 1.5 | 2.48 | 6.53 | 29 | 5.0 | 4.72 | 5.0 | Yes |
| 30455 |
|
Metric | M12 x 1.75 | 2.97 | 7.83 | 32 | 6.0 | 6.30 | 6.0 | Yes |
| 30457 |
|
Metric | M16 x 2.0 | 4.73 | 11.48 | 38 | 8.0 | 7.87 | 8.0 | Yes |
| 30458 |
|
Metric | M20 x 2.5 | 3.05 | 16.95 | 44 | 8.0 | 9.50 | 10.0 | Yes |
| 30470 |
|
Metric | M4 x 0.7 | 1.22 | 3.29 | 16 | 2.5 | 1.78 | 2.0 | No |
| 30471 |
|
Metric | M5 x 0.8 | 1.31 | 5.00 | 19 | 3.0 | 2.36 | 2.5 | No |
| 30472 |
|
Metric | M6 x 1.0 | 1.35 | 5.85 | 25 | 5.0 | 3.02 | 3.0 | No |
| 30473 |
|
Metric | M8 x 1.25 | 1.35 | 6.75 | 25 | 5.0 | 3.43 | 4.0 | No |
| 30474 |
|
Metric | M10 x 1.5 | 2.48 | 6.53 | 29 | 5.0 | 4.72 | 5.0 | No |
| 30475 |
|
Metric | M12 x 1.75 | 2.97 | 7.83 | 32 | 6.0 | 6.30 | 6.0 | No |
| 30477 |
|
Metric | M16 x 2.0 | 4.73 | 11.48 | 38 | 8.0 | 7.87 | 8.0 | No |
| 30478 |
|
Metric | M20 x 2.5 | 3.05 | 16.95 | 44 | 8.0 | 9.50 | 10.0 | No |
| 30850 |
|
Metric | M4 x 0.7 | 0.32 | 1.04 | 16 | 2.5 | 1.78 | 2.0 | Yes |
| 30851 |
|
Metric | M5 x 0.8 | 0.59 | 1.22 | 19 | 3.0 | 2.36 | 2.5 | Yes |
| 30852 |
|
Metric | M6 x 1.0 | 0.45 | 1.80 | 25 | 5.0 | 3.02 | 3.0 | Yes |
| 30853 |
|
Metric | M8 x 1.25 | 0.68 | 2.03 | 25 | 5.0 | 3.43 | 4.0 | Yes |
| 30855 |
|
Metric | M12 x 1.75 | 1.22 | 4.21 | 32 | 6.0 | 6.30 | 6.0 | Yes |
| 30857 |
|
Metric | M16 x 2.0 | 1.58 | 4.76 | 38 | 8.0 | 7.87 | 8.0 | Yes |
| 30858 |
|
Metric | M20 x 2.5 | 2.50 | 6.58 | 44 | 8.0 | 9.50 | 10.0 | Yes |
| 30870 |
|
Metric | M4 x 0.7 | 0.32 | 1.04 | 16 | 2.5 | 1.78 | 2.0 | No |
| 30871 |
|
Metric | M5 x 0.8 | 0.59 | 1.22 | 19 | 3.0 | 2.36 | 2.5 | No |
| 30872 |
|
Metric | M6 x 1.0 | 0.45 | 1.80 | 25 | 5.0 | 3.02 | 3.0 | No |
| 30873 |
|
Metric | M8 x 1.25 | 0.68 | 2.03 | 25 | 5.0 | 3.43 | 4.0 | No |
| 30874 |
|
Metric | M10 x 1.5 | 1.26 | 3.26 | 29 | 5.0 | 4.72 | 5.0 | No |
| 30875 |
|
Metric | M12 x 1.75 | 1.22 | 4.21 | 32 | 6.0 | 6.30 | 6.0 | No |
| 30877 |
|
Metric | M16 x 2.0 | 1.58 | 4.76 | 38 | 8.0 | 7.87 | 8.0 | No |
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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-
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-
Steel Spring Plungers