PT51 · Bolts & Clamping Screws
Serrated Ball End Bolt (Round Body)
Round-body threaded swivel contact bolt with a serrated gripping face for rough surfaces.
- 7 part numbers with full dimensions
- Bolt: S45C (JIS) / CK45 (DIN)
- Heat treated: bolt HRC 28°–32°, ball HRC 62°
Serrated Ball End Bolt (Round Body) part numbers & dimensions
7 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
| Model No. | A | B | C | ØD | ØE | F | Max (kN)* | g | Quote |
|---|---|---|---|---|---|---|---|---|---|
| PT51-0613 | 21 | 13 | M6x1.00 | 7.2 | 13 | 11 | 10 | 12 | Quote |
| PT51-0813 | 21 | 13 | M8x1.25 | 7.2 | 13 | 11 | 10 | 13 | Quote |
| PT51-0818 | 28 | 18 | M8x1.25 | 10.5 | 20 | 17 | 25 | 38 | Quote |
| PT51-1018 | 28 | 18 | M10x1.50 | 10.5 | 20 | 17 | 25 | 40 | Quote |
| PT51-1218 | 30 | 18 | M12x1.75 | 10.5 | 20 | 17 | 25 | 40 | Quote |
| PT51-1627 | 43 | 27 | M16x2.00 | 20.0 | 30 | 27 | 90 | 150 | Quote |
| PT51-2035 | 55 | 35 | M20x2.50 | 34.5 | 50 | 41 | 165 | 520 | Quote |
*Maximum load applies only when the minimum bore depth is kept to.
Material & specifications
- Bolt: S45C (JIS) / CK45 (DIN)
- Ball: SUJ2 (JIS) / 100Cr6 (DIN)
- Heat treated: bolt HRC 28°–32°, ball HRC 62°
- Surface finish: black oxide
- Application: precision swivel ball that can be used either as a contact bolt or as a rest pad. Ideal for evenly distributing clamping pressure on sloped or uneven surfaces
- Features: serrated gripper is ideal for rough surfaces
Ordering the Serrated Ball End Bolt (Round Body)
Send us the PT51 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.