Technical Data  Locking Device  Data

Technical Data: Locking Bolt

The optimum performance of this product is achieved by using high-tensile locking bolts and tightening them with efficient torque.

JISB1176、JISB1180

Tightening Torque MA and Tightening Force Fv Bolt Data(Metric Coarse Thread Screws)

Bolt Strength Class 10.9 12.9
Nominal
dG		 MA FV MA FV
N・m {kgf・m} kN {kgf} N・m {kgf・m} kN {kgf}
M3 1.86 0.19 3.09 315 2.25 0.23 3.72 380
M4 4.02 0.41 5.34 545 4.8 0.49 6.42 655
M5 8.33 0.85 8.77 895 9.8 1 10.5 1070
M6 13.7 1.4 12.3 1260 16.7 1.7 14.8 1510
M8 34.3 3.5 22.7 2320 40.2 4.1 27.3 2790
M10 67.6 6.9 36.2 3690 81.3 8.3 43.4 4430
M12 118 12 52.9 5400 142 14.5 63.2 6450
M14 186 19 72.5 7400 225 23 86.7 8850
M16 289 29.5 100 10200 348 35.5 121 12300
M18 397 40.5 122 12400 475 48.5 145 14800
M20 568 58 157 16000 676 69 188 19200
M22 764 78 195 19900 911 93 234 23900
M24 980 100 225 23000 1180 120 270 27600
M27 1470 150 296 30200 1760 180 356 36300
M30 1960 200 361 36800 2350 240 433 44200

MA：Tightening torque
FV：Tightening Force per 1 Bolt

Locking Bolt Dimensions

1. Hex Cap Bolts

Hex Cap Bolts
(Units ：mm)
Nominal(dG) M3 M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24 (M27)
P(Pitch )
Coarse 		0.5 0.7 0.8 1.0 1.25 1.5 1.75 2.0 2.0 2.5 2.5 2.5 3.0 3.0
d2 Note 1) 3.4 4.5 5.5 6.6 9 11 14 16 18 20 22 24 26 30
D 5.5 7 8.5 10 13 16 18 21 24 27 30 33 36 40
H 3 4 5 6 8 10 12 14 16 18 20 22 24 27
W 2.5 3 4 5 6 8 10 12 14 14 17 17 19 19
m(min) 1.6 2.2 2.5 3 4 5 6 7 8 9 10 11 12 13.5
da(max) 3.6 4.7 5.7 6.8 9.2 11.2 14.2 16.2 18.2 20.2 22.4 24.4 26.4 30.4
R(min) 0.1 0.2 0.2 0.25 0.4 0.4 0.6 0.6 0.6 0.6 0.8 0.8 0.8 1
ℓ 4～20 4～25 8～32 10～50 12～100 14～125 18～125 20～160 25～160 28～180 35～180 45～180 50～300 55～300
S Note 2) 12 14 16 18 22 26 30 34 38 42 46 50 54 60
60 66
40 44 48 52 56 60 66
73 79
  • Note 1) JIS B1001 2nd Class
  • Note 2) ℓ ≤ 125mm, S = 2d + 6,  125mm < ℓ ≤ 200mm, S = 2d + 12,  200mm < ℓ, S = 2d + 25

2. Hex bolt

Hex bolt
Nominal(dG) M3 M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24 (M27)
P(Pitch )
Coarse 		0.5 0.7 0.8 1.0 1.25 1.5 1.75 2.0 2.0 2.5 2.5 2.5 3.0 3.0
d2 Note 1) 3.4 4.5 5.5 6.6 9 11 14 16 18 20 22 24 26 30
D 5.3 6.8 7.8 9.8 12.6 16.5 18 21 23 26 29 31 34 39
H 2 2.8 3.5 4 5.5 7 8 9 10 12 13 14 15 17
W 5.5 7 8 10 13 17 19 22 24 27 30 32 36 41
C(about ) 6.4 8.1 9.2 11.5 15 19.6 21.9 25.4 27.7 31.2 34.6 37 41.6 47.3
da(max) 3.6 4.7 5.7 6.8 9.2 11.2 14.2 16.2 18.2 20.2 22.4 24.4 26.4 50.4
R(min) 0.1 0.2 0.2 0.25 0.4 0.4 0.6 0.6 0.6 0.6 0.8 0.8 0.8 1
ℓ 5～32 6～40 7～50 7～70 11～100 14～100 18～140 20～140 22～140 25～200 28～200 28～200 30～200 35～240
S Note 2) 12 14 16 18 22 26 30 34 38 42 46 50 54 60
66
36 40 44 48 52 56 60 66
79
  • Note 1) JIS B1001 2nd Class
  • Note 2) ℓ ≤ 125mm, S = 2d + 6,  125mm < ℓ ≤ 200mm, S = 2d + 12,  200mm < ℓ, S = 2d + 25