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(Non-preferred) dimensions in parentheses.

Unit:mm

Cross recessed mushroom head screws

JIS B 1111 (JA6) - 2017

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日标JIS B1111 (JA6) - 2017 JIS1111 1111JIS Cross recessed mushroom head screws

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Thread Size
d

M2

M2.5

M3

(M3.5)

M4

M5

M6

M8

P		Pitch
Socket No.
d_k		max
		min
k		Nominal Size
		max
		min
b
m		Ref.
Penetration depth		max
		min
r		min
R		≈

0.4	0.45	0.5	0.6	0.7	0.8	1	1.25
1	1	1	2	2	2	3	3
4.5	5.7	6.9	8.1	9.4	11.8	14	17.8
4.1	5.3	6.4	7.6	8.9	11.2	13.3	17
1.2	1.5	1.9	2.2	2.5	3.1	3.7	4.8
1.3	1.6	2.05	2.35	2.65	3.25	3.9	5
1.1	1.4	1.75	2.05	2.35	2.95	3.5	4.6
8	12	12	14	16	20	25	30
2.2	2.5	2.9	4	4.3	5	6.3	7.8
1.01	1.32	1.72	1.83	2.13	2.83	2.86	4.36
0.65	0.95	1.34	1.3	1.6	2.29	2.31	3.78
0.1	0.1	0.1	0.1	0.2	0.2	0.25	0.4
3	3.7	4.6	5.4	6.1	7.7	9.1	11.7

①,x ≈ 2P

Alternative history

JIS B 1111A4 - 1996 JIS B 1111A4 - 2006 JIS B 1111JA6 - 2017

Suppliers

Best price if from GlobalFastener.com.

Wenzhou Fengding Fastener Manufacture Co., Ltd.

Mr.Huang
+86-18857755588/13676725866
+86-577-86500568

Material: carbon steel，copper，Stainless steel;Surface treatment: according to customers' requirements; Grade: 4.8, 8.8, 10.9, 12.9; Nominal diameter: M3-M20; Nominal length: 5-300mm

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Similar Standards

1		[GB] GB 973 - 1976	Crosss Recessed Mushroom Screws View Suppliers
2		[JIS] JIS B 1111 (A4) - 1996	Cross recessed mushroom head screws View Suppliers
3		[JIS] JIS B 1111 (A4) - 2006	Cross Recessed Mushroom Head Screws View Suppliers
4		[YJT] YJT 4012	Cross recessed mushroom head screws View Suppliers
5		[ASME] ASME B 18.6.3 (T25-I/T25-IA) - 2013	Cross Recessed Mushroom Head Screws, Type I and IA
6		[ASME/ANSI] ASME/ANSI B 18.6.3 - 2003	Cross recessed truss head machine screws
7		[BS] BS 450 - 1958	Cross Recess Mushroom Head Screws with B.S.W. & B.S.F. Threads [Table 8]
8		[NF] NF E 25-129 - 1985	Cross Recessed Mushroom Head Screws
9		[CNS] CNS 9675 - 1988	Cross Recessed Mushroom Head Machine Screws
10		[CNS] CNS 4559 - 1981	Cross Recessed Oval Cheese Head Screws