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ISO 7040 - 2025

Prevailing Torque Hexagon Regular Nuts (with Non-Metallic Insert)

ISO 7040 - 2025 非金属嵌件六角锁紧螺母

See all versions and complete specifications: Prevailing Torque Hexagon Regular Nuts (with Non-Metallic Insert) — Full Specification Page

Equivalent & Cross-Reference Standards

Standard Body	Standard Number
GB	GB /T 889.1
NF	NF E 25-409
DIN	DIN EN ISO 7040
ISO	ISO 7040
UNI	UNI 7473

Dimensional Specifications — ISO 7040 - 2025 (mm)

Size	P	e	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
M3	0.7	6.78	7	7.66	6.5	4.6	4	3.3	2.64	6.2	5.92
M4	1	9.78	10	11.05	8	6.75	6	4.9

Related Standards

GB /T 6172.2 - 2016— Prevailing Torque Type Hexagon Thin Nuts（With Non-Metalic Insert）GB /T 6182 - 2016— Prevailing Torque Type Hexagon Nuts（With Non-Metallic Insert）,Style 2 GB /T 889.2 - 2016— Prevailing Torque Type Hexagon Nuts (With Non-Metallic Insert), Style 1 - Fine Pitch Thread GB /T 889.1 - 2015— Prevailing Torque Type Hexagon Nuts（With Non-Metallic Insert）,Style 1 GB /T 6182 - 2010— Prevailing Torque Type Hexagon Nuts (with Non-metallic Insert), Style 2 GB /T 6172.2 - 2000— Prevailing Torque Type Hexagon Thin Nuts (with Non-Metallic Insert)GB /T 6182 - 2000— Prevailing Torque Type Hexagon Nuts (with Non-Metallic Insert), Style 2 GB /T 889.1 - 2000

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