View All Delrin Knob Plungers – Stainless Steel, Featuring Locking and Non-Locking Plunger
Delrin® Knob Plungers – Stainless Steel are retractable quick release devices for positioning, fastening, securing, latching and quick disconnect applications where corrosion resistance is required. A contoured Delrin® knob is paired with a radiused, case-hardened steel plunger and a stainless steel body and spring. Choose a non-locking design or a locking plunger nose with optional locking elements. Available with unified ANSI and metric threads in ANSI 1/4-20 through 1/2-13 and metric M6 x 1.0 through M12 x 1.75 with thread lock options.
Specify by:
- Plunger nose style (locking or non-locking)
- Thread standard and size (ANSI or metric)
- End force requirement (initial and final)
- Thread lock requirement
- Envelope dimensions (A–H per table)
Click any row to see CAD and additional product information, or to add to quote.
| Part No. | End Force, (Lbs.) | A | B | C | D | E | F | G | H Hex | ROHS | CAD | CAD With Thread Lock |
||
| With Thread Lock | Initial | Final | ||||||||||||
| SPRTL250* | SPRTL250P* | 0.12 | 0.36 | 1/4-20 | 0.50 | 0.13 | 0.16 | 0.50 | 0.970 | 0.63 | 1/4 | SPRTL250 | SPRTL250P | |
| SPRTL375 | SPRTL375P | 0.25 | 2.00 | 3/8-16 | 0.75 | 0.18 | 0.25 | 0.75 | 1.40 | 0.94 | 3/8 | SPRTL375 | SPRTL375P | |
| SPRTL500 | SPRTL500P | 0.50 | 1.75 | 1/2-13 | 1.00 | 0.25 | 0.31 | 1.00 | 1.90 | 1.25 | 1/2 | SPRTL500 | SPRTL500P | |
No thread relief in 1/4-20 thread size and M6 thread for metric.
Conversion Calculators
Enter known value in place of X to view results.
Metric & Inch conversion:
Inch
=
mm
Lbf/Newton Conversion:
lbf
=
N
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