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GB /T 1231

High Strength Bolts with Large Hexagon Head Assemblies for Steel Structures

GB /T 1231 (assemblies) - 2024 钢结构用高强度大六角头螺栓连接副

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

Dimensional Specifications — GB /T 1231 (mm)

Size	P	s_max	s_min	k_nominal
M12	M20	20	20	M20
M16	M24	24	24	M24
M20	M30	30	30	M30
(M22)	M36	36	36	M36
螺栓连接副	M12	12	12	M12

Related Standards

GB 9074.11 - 1988— Cross Recessed Hexagon Bolt with Indentation and Plain Washer Assemblies GB 9074.12 - 1988— Cross Recessed Hexagon Bolt with Indentation and Single Coil Spring Lock Washer Assemblies GB 9074.13 - 1988— Cross Recessed Hexagon Bolt with Indentation, Single Coil Lock Washer and Plain Washer Assemblies GB 9074.14 - 1988— Hexagon Head Bolt and Plain Washer Assemblies GB 9074.15 - 1988— Hexagon Head Bolts and Single Coil Spring Lock Washer Assemblies GB 9074.16 - 1988— Hexagon Head Bolt and Serrated Lock Washer External Teeth Assemblies GB /T 9074.17 - 1988— Hexagon Head Bolt, Single Coil Spring Lock Washer and Plain Washer Assemblies GB /T 9160.2 (MS) - 2006

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