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ANSI B 18.2

Metric Heavy Hex Structural Bolts

ASME/ANSI B 18.2.3.7M - 1979 (R2006) 米制重型六角结构螺栓

See all versions and complete specifications: Metric Heavy Hex Structural Bolts — Full Specification Page

Dimensional Specifications — ANSI B 18.2 (mm)

Size	P	e	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
M16	2.5	0.8	31.4	33	39.26	20.84	19.16	13.4	11.6	34	37.29
M20	3	0.8	38	40	47.34	24.84	23.16	15.9	14.1	41	45.2
M22	3.5	0.8	46.5	49	57.74	30.84	29.16	19.75	17.65	50	55.37
M24	4	0.8	55.9	58.8	69.28

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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