Pin Hollow Type: Dimension and tightening torque table

Pin hollow type

Standard materials and coatings

Size Material Coating
M14–M36 Class 8/medium-carbon steel (JIS S45C)/hardness HRC 30–43 Black oxide

Please contact us for other coating options.

Dimension and tightening torque table

Unit: millimeters (mm)

Nominal size Pitch L Set screw (1) Lock screw (2) Thread length (approx.) Hex socket (both 1 and 2) Pin dia. Pin hole dia. Unit weight Reference tightening torque (N·m)
(both the set and lock screws) (shared material and strength)
Proof torque
H Tolerance 1 H1 Tolerance 2
S, S1 C: Coarse F: Fine B Tolerance D Tolerance A, A1 Tolerance (g)
M14 2.0 1.5 100 20 ±0.42 ≧5 16 ±0.35 9 32 6 +0.02
+0.14
10 0
‐0.2
6 ±0.2 59 27–33 52
M16 2.0 1.5 100 20 ±0.42 ≧6 20 ±0.42 12 36 8 +0.03
+0.18
12 0
‐0.2
7 ±0.2 87 63–77 120
/ 200 146
M20 2.5 1.5 100 25 ±0.42 ≧6 20 ±0.42 12 40 10 +0.03
+0.18
16 0
‐0.2
10 ±0.2 145 90–110 220
/ 200 239
M24 3.0 1.5 100 35 ±0.42 ≧7 25 ±0.42 15 54 12 +0.03
+0.21
20 0
‐0.2
12 ±0.2 224 150–190 370
/ 200 345
M30 3.5 / 100 40 ±0.42 ≧7 30 ±0.42 20 64 17 +0.03
+0.21
24 0
‐0.2
17 ±0.2 348 530–650 980
200 507
M36 4.0 / 100 40 ±0.5 ≧7 35 ±0.5 20 68 17 +0.03
+0.21
30 0
‐0.2
17 ±0.2 703 530–650 980

• External dimensions: Hex socket set screws JIS B1177(2007)/ISO 4026
• Screw thread tolerance: JIS B0209(2001)/ISO 965 6g
• The reference tightening torque is calculated at approximately 60% of the hex wrench proof load. (JIS B4648)
• Be advised that the dimensions and other specifications are subject to change without notice.