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High-Strength Structural Bolting Assemblies For Preloading - System HRC - Bolt HRC with Countersunk Head

Product Specification
Screw Thread M20
Thread Size M20
D 20
P 2.5
B L≤125 46
B 125＜L≤200 52
B L＞200 65
Ds Max 20.84
Ds Min 19.16
Dk Max 40
Dk Min 39
K Nominal 13
K Max 13.9
K Min 12.1
R Min 1.5
Db Nominal 14.1
Db Max 14.4
Db Min 13.8
Dc Min 15.6
F1 Min 15
F2 Max 20