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NZS 2451 - 1998

Screws with British Standard Whitworth Threads (rationalized series)

AS /NZS 2451 - 1998 英制螺纹六角头螺钉

See all versions and complete specifications: Screws with British Standard Whitworth Threads (rationalized series) — Full Specification Page

Dimensional Specifications — NZS 2451 - 1998 (mm)

Size	P	k_max	k_min	s_max	s_min	k_nominal	ds_nominal
1/4	18	1/32	0.228	0.525	0.515	0.61	0.208
3/8	11	3/64	0.447	1.01	0.985	1.12	0.417
5/16	14	1/32	0.312	0.71	0.695	0.82	0.292
7/16	9	1/16	0.623	1.3	1.27	1.45	0.583

Related Standards

GB /T 5781 - 2025— Hexagon Head Bolts - Full Thread - Product Grade C GB /T 5781 - 2016— Hexagon Head Bolts - Full Thread - Product Grade C GB /T 5783 - 2016— Hexagon Head Bolts - Full Thread GB /T 5786 - 2016— Hexagon Head Bolts with Fine Pitch Thread - Full Thread GB /T 5781 - 2000— Hexagon Head Bolts - Full Thread - Product GradeC GB /T 5783 - 2000— Hexagon Head Bolts - Full Thread - Grade A and B GB /T 5786 - 2000— Hexagon Head Bolts with Fine Pitch Thread - Full Thread GB /T 5781 - 1986— Hexagon Head Bolts - Full Thread - Product Grade C

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