Sakai TW504 - Tightening Torque Chart

2-018
SPECIFICATIONS
SPECIFICATIONS
4. TIGHTENING TORQUE CHART
N·m (lbf·ft)
Nominal
Dia.
Pitch
Strength Classification
6.8 8.8 10.9 12.9
Metric coarse screw
5 0.8 4.9 (3.6) 5.9 (4.4) 7.8 (5.8) 7.8 (5.8)
6 1.0 7.8 (5.8) 9.8 (7.2) 13 (9.6) 13 (9.6)
8 1.25 17 (13) 23 (17) 31 (23) 31 (23)
10 1.5 39 (29) 49 (36) 59 (44) 59 (44)
12 1.75 69 (51) 78 (58) 108 (80) 108 (80)
14 2.0 98 (72) 127 (94) 167 (123) 167 (123)
16 2.0 157 (116) 196 (145) 265 (195) 265 (195)
18 2.5 196 (145) 245 (181) 343 (253) 343 (253)
20 2.5 294 (217) 392 (289) 539 (398) 539 (398)
22 2.5 441 (325) 539 (398) 686 (506) 686 (506)
24 3.0 539 (398) 637 (470) 883 (651) 883 (651)
27 3.0 785 (579) 981 (724) 1324 (977) 1324 (977)
30 3.5 1079 (796) 1324 (977) 1765 (1302) 1765 (1302)
Metric fine screw
10 1.25 39 (29) 49 (36) 69 (51) 69 (51)
12 1.25 69 (51) 88 (65) 118 (87) 118 (87)
14 1.5 108 (80) 137 (101) 186 (137) 186 (137)
16 1.5 167 (123) 206 (152) 284 (209) 284 (209)
18 1.5 245 (181) 294 (217) 392 (289) 392 (289)
20 1.5 343 (253) 441 (325) 588 (434) 588 (434)
22 1.5 490 (361) 588 (434) 785 (579) 785 (579)
24 2.0 588 (434) 735 (542) 981 (724) 981 (724)
27 2.0 834 (615) 1030 (760) 1422 (1049) 1422 (1049)
30 2.0 1177 (868) 1422 (1049) 1961 (1446) 1961 (1446)