

Delrin® Knob Steel Retractables/Non-Locking
Vlier Delrin Knob Steel Retractable Plungers offer a cosmetically-appealing plunger design with improved appearance and functionality.
| Delrin Knob Steel Plungers - Non-Locking (ANSI Threads) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Part No. | End Force, Lbs. | A | B | C | D | E | F | G | H Hex | |
| Init. | Final | |||||||||
| PRT250* | .12 | .36 | 1/4-20 | .50 | .13 | .16 | .50 | .97 | .63 | 1/4 |
| PRT375 | .25 | 2.0 | 3/8-16 | .75 | .18 | .25 | .75 | 1.4 | .94 | 3/8 |
| PRT500 | .50 | 1.75 | 1/2-13 | 1.0 | .25 | .31 | 1.0 | 1.9 | 1.25 | 1/2 |
| To Order with Locking Element - Add "P"at end of the part number. Initial End Forces +/- 50% Final End Foreces +/- 25% *No thread relief in 1/4-20 thread size. | ||||||||||
| Delrin Knob Plungers - Steel/Non-Locking (Metric Threads) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Part No. | End Force, N (Lbs.) | A mm (in.) |
B mm (in.) |
C mm (in.) |
D mm (in.) |
E mm (in.) |
F mm (in.) |
G mm (in.) |
H mm (in.) | |
| Init. | Final | |||||||||
| MPRT6* |
0.5 (.11) |
1.5 (.34) |
M6 X 1.0 |
13 (.50) |
3 (.118) |
3 (.117) |
12 (.48) |
25 (.98) |
16 (.63) |
6 (.236) |
| MPRT10 |
1.0 (22) |
9.0 (2.02) |
M10 X 1.5 |
20 (.79) |
5 (.196) |
6 (.236) |
19 (.75) |
38 (1.5) |
25 (.98) |
10 (.39) |
| MPRT12 |
2.5 (.56) |
8.0 (1.80) |
M12 X 1.75 |
25 (.98) |
6 (.236) |
8 (.314) |
25 (.98) |
47 (1.85) |
31 (1.2) |
12 (.472) |
| To Order with Locking Element - Add "P" at the end of part number. *No thread relief in M6 thread size. | ||||||||||
| 440 Industrial Drive • North Wales, PA 19454-4151 • 800.422.3274 • 215.699.0940 • Fax 215.699.0944 |