AI Search

BS 1768 - 1963

Unified Hexagon Head Screws, Washer Faced

BS 1768 - 1963 精制美制六角头螺钉

See all versions and complete specifications: Unified Hexagon Head Screws, Washer Faced — Full Specification Page

Dimensional Specifications — BS 1768 - 1963 (mm)

Size	P	e	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
1/4	18	0.201	0.211	0.5000	0.4930	24	0.3125	0.483	0.473	0.3090	0.577
3/8	12	0.361	0.371	0.8125	0.8045	18	0.5625	0.792	0.782	0.5585	0.938
5/16	14	0.281	0.291	0.6250	0.6170	20	0.4375	0.605	0.595	0.4335	0.722
7/16	10	0.463	0.483	1.1250

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

Technical Specifications & Availability

Request detailed technical specifications, material certifications, and availability information for your application requirements. Our engineering team can provide product recommendations, custom specifications, and technical documentation.

Request Technical Specifications WhatsApp Inquiry

Product Documentation|Application Consultation|Quick Chat

Technical Support Available

Material Certifications

Custom Specifications