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ASME B 18.6

Square Recessed Round Head Screws

ASME B 18.6.3 (T36-III) - 2013 方槽圆头螺钉

See all versions and complete specifications: Square Recessed Round Head Screws — Full Specification Page

Dimensional Specifications — ASME B 18.6 (mm)

Size	P	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
3#	0.1120	0.075	0.038	0.028	40	0	0.193	0.086	0.070	0.211
4#	0.1380	0.091	0.065	0.050	32	1R	0.240	0.103	0.091	0.260
5#	0.1900	0.123	0.075	0.060	24	2R	0.334	0.137	0.112	0.359
6#	0.2500	0.160	0.095	0.080	20	3R	0.443

Related Standards

ASME B 18.6.3 (H8B-III) - 2024— Square Recessed Raised Binding Head Machine Screws [TABLE 2.2.8-2 III]ASME B 18.6.3 (H11B-III) - 2024— Square Recessed Round Head Screws [TABLE 2.2.11-2 III]ASME B 18.6.3 (T28-III) - 2013— Square Recessed Raised Cheese Head Machine Screws

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