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(Non-preferred) dimensions in parentheses.

Unit:mm

Slotted Flat Head Bolts, Rough Finished

JIS B 1179 - 1994

Display drawing:

日标JIS B1179 - 1994 JIS1179 1179JIS Slotted Flat Head Bolts, Rough Finished
日标JIS B1179 - 1994 JIS1179 1179JIS Slotted Flat Head Bolts, Rough Finished
Thread Size
d
M10 M12 (M14) M16 (M18) M20 (M22) M24 M30 M36
P Coarse pitch
Fine pitch
ds Nominal Size
max
min
dk max=nominal size
min
k max
n max
min=nominal size
t Nominal Size
max
min
α max
min=nominal size
b L≤125
125＜L≤200
L＞200
1.5 1.75 2 2 2.5 2.5 2.5 3 3.5 4
1.25 1.25 1.5 1.5 1.5 1.5 1.5 2 2 3
10 12 14 16 18 20 22 24 30 36
10.7 12.9 14.9 16.9 18.9 20.95 22.95 24.95 30.95 37.2
9.8 11.8 13.8 15.8 17.8 19.65 21.65 23.65 29.65 35.6
20 24 27 30 33 36 36 39 48 57
18.7 22.7 25.7 28.7 31.4 34.4 34.4 37.4 46.4 55.1
5.7 6.7 7.2 7.7 8.2 8.8 13.6 14.4 17 19.7
2.25 2.25 3.25 3.25 3.25 4.3 4.3 4.3 5.3 6.3
2 2 3 3 3 4 4 4 5 6
2.5 2.5 3.5 3.5 3.5 4.5 5 5 6 7
2.9 2.9 4 4 4 5 5.5 5.5 6.5 7.6
2.1 2.1 3 3 3 4 4.5 4.5 5.5 6.4
92° 92° 92° 92° 92° 92° 62° 62° 62° 62°
90° 90° 90° 90° 90° 90° 60° 60° 60° 60°
26 30 34 38 42 46 50 54 64 78
/ 36 40 44 48 52 56 60 72 84
/ / / / / / / / 85 103
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