Click Specification

Round Head Square Neck Bolts - JAPY Type

NF E 27-351 - 1969

Display drawing:

Screw Thread
d

M10

M12

M14

M16

M18

M20

M22

M24

M27

M30

P	Pitch
d_k
k
s
k₁

0.8	1	1	1.25	1.5	1.75	2	2	2.5	2.5	2.5	3	3	3.5
14	16	18	20	24	28	32	36	40	44	48	52	58	64
3	3.5	4	4.5	5.5	7	9	11	12	13	14	15	17	19
5	6	7	8	10	12	14	16	18	20	22	24	27	30
3.5	4.2	4.9	5.6	7	8.4	9.8	11.2	12.6	14	15.4	16.8	18.9	21

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Similar Standards

1	[DIN] DIN 603 - 1981	Mshroom Head Square Neck Bolts View Suppliers
2	[DIN] DIN 603 - 2010	Mushroom Head Square Neck Bolts View Suppliers
3	[DIN] DIN 603 - 2017	Cup Head Square Neck Bolts View Suppliers
4	[ASME/ANSI] ASME/ANSI B 18.5.2.3M - 1990	Metric Round Head Square Neck Bolts with Large Head
5	[ISO] ISO 8677 - 1986	Cup Head Square Neck Bolts with Large Head - Product Grade C
6	[ASME] ASME B 18.5 (T6) - 2012 (2017)	Step Bolts,(Inch Series)
7	[DIN] DIN 11015 - 1995	Agricultural Machinery - Flat Countersunk Square Neck Bolts with Short Square
8	[ASME/ANSI] ASME/ANSI B 18.5 (T6) - 2012	Step Bolts, (Inch Series)
9	[ASME/ANSI] ASME/ANSI B 18.5 - 2008	Step Bolts
10	[GB] GB /T 14 - 1988	Cup Head Square Bolts with Large Head - Grade C
11	[UNI] UNI 5731 - 1965	Cup square bolts and bolts with square nut - ISO metric coarse thread - Finish C
12	[UNI] UNI 5732 - 1965	Cup Square Bolts with Hexagon Nut - ISO Metric Coarse Thread - Finish C
13	[BS] BS 4933 - 1973	Metric Cup Square Bolts
14	[GB] GB /T 14 - 1998	Cup Head Square Neck Bolts with Large Head
15	[JIS] JIS B 1171 (AT1) - 1996	Cup Head Square Neck Bolts（Large Size）[Table 1]
16	[GB] GB 14 - 1976	Cup Head Square Neck Bolts with Large Head
17	[GB] GB /T 14 - 2013	Mushroom Head Square Neck Bolts
18	[GOST] GOST 7802 - 1981	Increased cup head square shoulder bolts, product grade C
19	[CNS] CNS 4424 - 1981	Cup Square Bolts
20	[CNS] CNS 4425 - 1981	Cup Square Bolts with Enlarged Head for Looms
21	[CNS] CNS 4574 - 1981	Cover Bolts Type A