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BS 4168

Metric Hexagon Socket Countersunk Head Screws

BS 4168-8 - 1982 米制内六角沉头螺钉

See all versions and complete specifications: Metric Hexagon Socket Countersunk Head Screws — Full Specification Page

Dimensional Specifications — BS 4168 (mm)

Size	P	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
M3	0.7	1.49	7.78	2.48	20	8.96	2.56	2.52	8	2.5
M4	1	2.16	11.73	3.72	24	13.44	4.095	4.02	12	4
M5	1.5	3.6	19.67	6.2	32	22.40	6.095	6.02	20	6
M6	2	4.65	26.67	8.12	40	30.24	10.115	10.025

Related Standards

GB /T 70.3 - 2023— Hexagon Socket Countersunk Head Screws with Reduced Loadability GB /T 70.3 - 2008— Hexagon Socket Countersunk Head Screws GB /T 70.3 - 2000— Hexagon Socket Countersunk Head Screws IFI 535 - 1982— Metric Socket Countersunk Head Cap Screws DIN 7991 - 1986— Hexagon Socket Countersunk Head Cap Screws ISO 10642 - 2019— Hexagon Socket Countersunk Head Screws with Reduced Loadability ISO 10642 - 2004— Hexagon Socket Countersunk Head Screws ISO 10642 - 1997— Hexagon Socket Countersunk Head Screws

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