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NF E 25

High Strength Bolts with Large Hexagon Head for Steel Structure

NF E 25-801-4 - 2005 钢结构用高强度大六角头螺栓

See all versions and complete specifications: High Strength Bolts with Large Hexagon Head for Steel Structure — Full Specification Page

Dimensional Specifications — NF E 25 (mm)

Size	P	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
M12	2	15.3	9.25	27	28	10	16	16.7	10.75	26.16
M16	2.5	21.16	13.1	36	34	14	22	22.84	14.9	35
M20	3	26.16	16.1	46	41	17	27	27.84	17.9	45
M22	4	35	21.95	60	52	23	36	37

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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