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Clamp Supply – workholding aux parts for fixtures, jigs and machine tables

info@clampsupply.com (619) 704-3113

PT31 · Bolts & Clamping Screws

Shoulder Bolt

Ground-shoulder socket bolt that both positions and fastens fixture components.

  • 8 part numbers with full dimensions
  • Material: SCM435 (JIS) / 34CrMo4 (DIN)
  • Heat treated: HRC 32°–38°
PT31 Shoulder Bolt

Shoulder Bolt part numbers & dimensions

8 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

PT31 Shoulder Bolt dimension drawing
PT31 Shoulder Bolt – dimensions A, B, C… correspond to the table columns below.
Model No. ØA (g6) B ØC D E F G kg Quote
PT31-1245 12 45 18 23 M12 57 10 0.053 Quote
PT31-1255 12 55 18 33 M12 67 10 0.060 Quote
PT31-1265 12 65 18 43 M12 77 10 0.070 Quote
PT31-1275 12 75 18 53 M12 87 10 0.078 Quote
PT31-1655 16 55 24 28 M16 72 14 0.120 Quote
PT31-1665 16 65 24 40 M16 82 14 0.140 Quote
PT31-1675 16 75 24 50 M16 92 14 0.150 Quote
PT31-1688 16 88 24 68 M16 105 14 0.165 Quote

Material & specifications

  • Material: SCM435 (JIS) / 34CrMo4 (DIN)
  • Heat treated: HRC 32°–38°
  • Application: position and fasten with this accurately ground bolt
  • Shoulder ØA ground to g6

Ordering the Shoulder Bolt

Send us the PT31 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.