Installation Owner's manual

Rockwell Automation Publication CHPS-UM001D-EN-P - July 2014 107
Mounting Bolts and Torque Values Appendix E
Table 17 - Recommended Seating Torque for Brass Rb 72
UNC UNF
Plain Cadmium Plated Plain Cadmium Plated
Bolt Size
(1), (2)
N•m (lbf•in) N•m (lbf•in) N•m (lbf•in) N•m (lbf•in)
#0 — — 0.24 (2.1)
(3)
0.18 (1.6)
(3)
#1 0.43(3.8)
(3)
0.33 (2.9)
(3)
0.46 (4.1) 0.34 (3.0)
(3)
#2 0.71 (6.3)
(3)
0.53 (4.7)
(3)
0.77 (6.8)
(3)
0.58 (5.1)
(3)
#3 1.08 (9.6)
(3)
0.81 (7.2)
(3)
1.16 (10.3)
(3)
0.87 (7.7)
(3)
#4 1.52 (13.5)
(3)
1.1 (10)
(3)
1.67 (14.8)
(3)
1.24 (11)
(3)
#5 2.2 (20)
(3)
1.7 (15)
(3)
2.4 (21)
(3)
1.8 (16)
(3)
#6 2.8 (25)
(3)
2.1 (19)
(3)
3.2 (28)
(3)
2.4 (21)
(3)
#8 5.2 (46)
(3)
3.8 (34) 5.4 (48)
(3)
4.1 (36)
(3)
#10 7.6 (67)
(3)
5.6 (50)
(3)
8.6 (76)
(3)
6.4 (57)
(3)
1/4 15.3 (136) 11.5 (102) 15.4 (136) 11.5 (102)
5/16 25.8 (228) 19.3 (171) 25.8 (228) 19.3 (171)
3/8 53.7 (476) 40.3 (357) 53.7 (476) 40.3 (357)
7/16 76.8 (680) 57.6 (510) 76.8 (680) 57.6 (510)
(1) Mounting hardware is 1960-series socket head cap bolt that meets or exceeds ANSI B18.3.
(2) Torque is based on 60,000 psi bearing stress under the head of the bolt.
(3) Denotes torques based on 100,000 psi tensile stress with threads up to one inch in diameter.