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GB /T 1229 - 2006

High Strength Large Hexgon Nuts for Steel Structures

GB /T 1229 - 2006 钢结构用高强度大六角螺母

See all versions and complete specifications: High Strength Large Hexgon Nuts for Steel Structures — Full Specification Page

Dimensional Specifications — GB /T 1229 - 2006 (mm)

Size	P	e	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
M12	2	27	0.4	29.56	17.1	17.3	16	11.5	0.8	24.9	16.4
M16	2.5	36	0.4	39.55	23.6	23.8	22	15.6	0.8	33.3	22.3
M20	3	46	0.4	50.85	27.6	29.1	27	18.4	0.8	42.8	26.3
(M22)	3.5	50	0.4	55.37	30.7

Related Standards

GB /T 1231 (nut) - 2024— High Strength Large Hexgon Nuts for Steel Structures GB /T 13807.3 (G) - 2008— Connections with Waisted Stud - Nuts Type G GB /T 3632 (W) - 2008— Torshear Type Hexagon Nut for Steel Structures GB /T 3632 (H) - 1995— Torshear Type High Strength Nut for Steel Structures GB /T 13807.3 (G) - 1992— Connections with Waisted Stud - Nuts - Type G GB /T 1229 - 1991— High Strength Large Hexagon Nuts for Steel Structure GB /T 32076.8 - 2017— High-Strength Structural Bolting Assemblies for Preloading - Nut Assemblies GB /T 32076.9 - 2017— Sets of Torshear Type High Strength Bolt Hexagon Nuts

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