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ASME B 18.2

Metric Heavy Hex Nuts for Use with Structural Bolts (ASTM A563M)

ASME B 18.2.6M - 2012 米制重型六角螺母 [Table 3] (ASTM A563M)

See all versions and complete specifications: Metric Heavy Hex Nuts for Use with Structural Bolts (ASTM A563M) — Full Specification Page

Dimensional Specifications — ASME B 18.2 (mm)

Size	P	k_max	k_min	s_max	s_min	k_nominal	ds_nominal
M12	2.00	29.56	17.1	27.00	26.16	31.18	16.4
M16	2.50	39.55	23.6	36.00	35.00	41.57	22.3
M20	3.00	50.85	27.6	46.00	45.00	53.12	26.3
M22	4.00	66.44	36.6	60.00	58.80	69.28	35.0

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 1229 - 2006— High Strength Large Hexgon Nuts 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

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