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IS 3757 - 1985

High Strength Structural Bolts

IS 3757 - 1985 高强度结构螺栓

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Dimensional Specifications — IS 3757 - 1985 (mm)

Size	P	e	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
M16	2.5	12.5	37.29	0.4	23.24	36	43	19.16	31.4	0.8	20.84
M20	3	15	45.2	0.4	27.64	41	48	23.16	38	0.8	24.84
M24	4	22.5	66.44	0.4	41	56	63	35	55.9	0.8	37
(M22)	3.5	18.7	55.37	0.4	34.24

Related Standards

GB /T 1231 (bolt) - 2024— High Strength Bolts with Large Hexagon Head Assemblies for Steel Structures GB /T 9125.1 - 2020— Hex Bolt for Pipe Flange Connection - PN Designated GB /T 9125.2 - 2020— Hex Bolt for Pipe Flange Connection - Class Designated GB /T 16939 - 2016— High Strength Bolts for Joints of Space Grid Structures GB /T 9125 - 2010— Hex Bolt for Pipe Flange Connection GB /T 1228 - 2006— High Strength Bolts with Large Hexagon Head for Steel Structures GB /T 9125 - 2003— Hex Bolt for Pipe Flange Connection GB /T 16939 - 1997— High Strength Bolts for Joints of Space Grid Structures

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