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JG /T 5057.1 - 1995

Construction Machinery and Equipment - High Strength Hexagon Head Bolts

JG /T 5057.1 - 1995 建筑机械与设备高强度六角头螺栓

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Dimensional Specifications — JG /T 5057.1 - 1995 (mm)

Size	P	k_max	k_min	s_max	s_min	ds_max	k_nominal	ds_nominal
M12	2	8.51	21	14	13.57	22.78	9.09	20.16
M14	2.5	11.15	27	18	17.57	29.56	11.85	26.16
M16	2.5	13.65	34	22	21.48	37.29	14.35	33

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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