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JIS B 1111

Cross Recessed Mushroom Head Screws

JIS B 1111 (JA6) - 2017 十字槽大扁头螺钉 [附属表 JA.6]

See all versions and complete specifications: Cross Recessed Mushroom Head Screws — Full Specification Page

Dimensional Specifications — JIS B 1111 (mm)

Size	P	e	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
M2	0.45	0.95	1.32	1.5	1.6	1	5.7	12	2.5	5.3	1.4
M3	0.8	2.29	2.83	3.1	3.25	2	11.8	20	5	11.2	2.95
M2.5	0.6	1.3	1.83	2.2	2.35	2	8.1	14	4	7.6	2.05
(M3.5)	1.25	3.78	4.36	4.8	5

Related Standards

GB 973 - 1976— Crosss Recessed Mushroom Screws JIS B 1111 (A4) - 2006— Cross Recessed Mushroom Head Screws [Annex Attached Table 4]JIS B 1111 (A4) - 1996— Cross Recessed Mushroom Head Screws [Annex Attached Table 4]ASME/ANSI B 18.6.3 - 2003— Cross Recessed Truss Head Machine Screws NF E 25-129 - 1985— Cross Recessed Mushroom Head Screws NF L 22-181 - 1976— Mushroom Head Screws with B.N.A.E. Cross Recess. SIM Thread NF L 22-186 - 1976— Mushroom Head Screws with B.N.A.E. Cross Recess and Cone Point. SIM Thread BS 450 - 1958— Cross Recess Mushroom Head Screws with B.S.W. & B.S.F. Threads [Table 8]

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