PT56 · Locating & Positioning
Spring Locating Pin (POM Pin)
Press-in spring-loaded locating pin with a non-marring POM plastic pin for delicate workpieces.
- 10 part numbers with full dimensions
- Body: aluminum, silver passivated

Spring Locating Pin (POM Pin) part numbers & dimensions
10 part numbers. All dimensions in millimetres (mm) unless noted; letters match the dimension drawing. On a phone, swipe the table sideways. Tap “Quote” to email us about a part.
Dimension drawing

Type A – without seal
| Model No. | ØA | ØB | C | D | F | P (N) | Install tool | g | Quote |
|---|---|---|---|---|---|---|---|---|---|
| PT56A-0603-010 | 6 | 3 | 4.0 | 7 | 0.5 | 10 | PT57-0603 | 0.4 | Quote |
| PT56A-1005-020 | 10 | 5 | 6.7 | 11 | 0.8 | 20 | PT57-1006 | 1.3 | Quote |
| PT56A-1006-040 | 10 | 6 | 10.7 | 11 | 1.0 | 40 | PT57-1006 | 1.5 | Quote |
| PT56A-1208-050 | 12 | 8 | 13.9 | 13 | 1.3 | 50 | PT57-1208 | 2.9 | Quote |
| PT56A-1610-100 | 16 | 10 | 16.7 | 17 | 1.6 | 100 | PT57-1610 | 6.6 | Quote |
Type B – with seal
| Model No. | ØA | ØB | C | D | F | P (N) | Install tool | g | Quote |
|---|---|---|---|---|---|---|---|---|---|
| PT56B-0603-010 | 6 | 3 | 4 | 7 | 0.5 | 10 | PT57-0603 | 0.4 | Quote |
| PT56B-1005-020 | 10 | 5 | 6 | 12 | 0.8 | 20 | PT57-1006 | 1.3 | Quote |
| PT56B-1006-040 | 10 | 6 | 10 | 12 | 1.0 | 40 | PT57-1006 | 1.5 | Quote |
| PT56B-1208-050 | 12 | 8 | 13 | 14 | 1.3 | 50 | PT57-1208 | 3.0 | Quote |
| PT56B-1610-100 | 16 | 10 | 16 | 18 | 1.6 | 100 | PT57-1610 | 6.7 | Quote |
Material & specifications
- Body: aluminum, silver passivated
- Pin: POM (acetal) plastic
- Spring: spring steel wire
- Type B seal: CR
- P (N) = maximum force when the pin moves
- Application temperature with plastic pins: up to 80 °C
- Install with apple-yellow grease and press into place using the PT57 installation tool
Ordering the Spring Locating Pin (POM Pin)
Send us the PT56 part numbers and quantities you need and we will reply with pricing and lead time. Not sure which size fits your fixture? Email info@clampsupply.com or call (619) 704-3113 and we will help you choose. Please confirm critical dimensions before machining your fixture.
