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(Non-preferred) dimensions in parentheses.

Slotted Flat Head Bolts, Fine Finished

JIS B 1179 - 1994

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日标JIS B1179 - 1994 JIS1179 1179JIS Slotted Flat Head Bolts, Fine Finished
日标JIS B1179 - 1994 JIS1179 1179JIS Slotted Flat Head Bolts, Fine Finished
Thread Size
d
M10 M12 (M14) M16 (M18) M20 (M22) M24 M30 M36
P Coarse pitch
Fine pitch
ds max=nominal size
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
9.8 11.75 13.75 15.75 17.75 19.65 21.65 23.65 29.65 35.6
20 24 27 30 33 36 36 39 48 57
19.65 23.65 26.65 29.65 32.6 35.6 35.6 38.6 47.6 56.55
5.5 6.5 7 7.5 8 8.5 13.2 14 16.6 19.2
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
2.8 2.8 3.9 3.9 3.9 4.9 5.4 5.4 6.4 7.45
2.2 2.2 3.1 3.1 3.1 4.1 4.6 4.6 5.6 6.55
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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