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ANSI B 18.2

Metric Heavy Hex Bolts

ANSI B 18.2.3.6M (J1199,F568,A962,A320) - 1979 (R2006) 米制重型六角头螺栓

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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
M12	2	15.7	53	23.16	9.25	14.70	13.30	34	40	24	8.51
M14	2.5	22.4	65	33	13.40	20.84	19.16	46	52	34	12.12
M16	3.5	33.4	85	49	19.75	30.84	29.16	66	72	50	17.92
M20	4	39.4	97	58.8	23.55

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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