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BS 1981 - 1991

Slotted Countersunk Flat Head Screws

BS 1981 - 1991 开槽沉头螺钉Table4

See all versions and complete specifications: Slotted Countersunk Flat Head Screws — Full Specification Page

Dimensional Specifications — BS 1981 - 1991 (mm)

Size	P	k_max	k_min	s_max	s_min	k_nominal	ds_nominal
0#	0.146	0.019	0.019	0.123	0.043	0.026	0.012
2#	0.252	0.035	0.034	0.22	0.075	0.043	0.022
4#	0.385	0.050	0.053	0.34	0.116	0.060	0.034
(1#)	0.199	0.027	0.027	0.171	0.059	0.035	0.017
(3#)	0.332	0.045	0.045	0.292	0.1	0.054	0.029

Related Standards

GB /T 68 - 2016— Slotted Countersunk Flat Head Screws GB /T 68 - 2000— Slotted Countersunk Head Screws (Commen Head Style)GB 68 - 1985— Slotted Countersunk Head Screws GB 948 - 1988— Slotted Countersunk Head Screws with Waisted Shank IFI 513 - 1982— Metric Slotted Flat Countersunk Head Machine Screws DIN 963 - 1990— Slotted Countersunk Head Screws DIN 7969 - 2017— Slotted Countersunk Head Bolts with Hexagon Nut for Steel Structures DIN 7969 - 1989— Slotted Countersunk Head Screws for Structural Steel Bolting for Supply with or Without Nuts

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