UNI 5731 - 1965 Cup square bolts and bolts with square nut - ISO metric coarse thread - Finish C

Unit: 毫米(mm)

Thread Size
d

P	pitch
d₁	Nominal Size
	max
	min
b	tol.+2P, 0	L≤125
		125＜L≤200
d₂	Nominal Size
	max
	min
r₁
k	Nominal Size
	max
	min
c	Nominal Size
	max
	min
r₂
t	Nominal Size
	max
	min
s	Nominal Size
	min
e	min
m	Nominal Size
	min
per 1000 units≈kg	nuts

0.8	1	1.25
5	6	8
5.24	6.24	8.29
4.76	5.76	7.71
16	18	22
/	/	/
13	15.5	20
13.55	16.05	20.65
12.45	14.95	19.35
11	13	16
2.5	3	4
2.8	3.3	4.375
2.2	2.7	3.625
3	4	5
3.3	4.375	5.375
2.7	3.625	4.625
0.5	0.5	0.5
5	6	8
5.24	6.24	8.29
4.76	5.76	7.71
8	10	13
7.64	9.64	12.57
10	13	17
4	5	6.5
2.8	3.8	5
1.31	2.77	5.5

per 1000 units ≈ kg(7.85kg/cm3)

①,bolts

GB /T 14 - 2013

Mushroom Head Square Neck Bolts

GB /T 14 - 1998

Cup head square neck bolts with large head

GB /T 14 - 1988

Cup Head Square Bolts With Large Head - Grade C

GB 14 - 1976

Cup head square neck bolts with large head

DIN 603 - 2017

Cup Head Square Neck Bolts
Suppliers(3)

DIN 603 - 2010

Mushroom head square neck bolts
Suppliers(3)

DIN 603 - 1981

Mshroom head square neck bolts
Suppliers(3)

DIN 11015 - 1995

Agricultural Machinery - Flat Countersunk Square Neck Bolts With Short Square

ISO 8677 - 1986

Cup Head Square Neck Bolts With Large Head-Product Grade C

JIS B 1171 (AT1) - 1996

Cup head square neck bolts（Large size）[Table 1]

Q 192B

Cup head square neck bolts with large head

ASME/ANSI B 18.5 - 2012

Step Bolts,(Inch Series)

ASME/ANSI B 18.5 - 2008

Step Bolts

ASME/ANSI B 18.5.2.3M - 1998

Metric round head square neck bolts with large head

UNI 5732 - 1965

Cup square bolts with hexagon nut - ISO metric coarse thread - Finish C

NF E 27-351 - 1969

Round Head Square Neck Bolts - JAPY Type

BS 4933 - 1973

Metric Cup Square Bolts

CNS 4424 - 1981

Cup Square Bolts

CNS 4425 - 1981

Cup Square Bolts With Enlarged Head For Looms

CNS 4574 - 1981

Cover Bolts Type A

GOST 7802 - 1981

Increased cup head square shoulder bolts, product grade C

ASME B 18.5 - 2012 (2017)

Step Bolts,(Inch Series)