ASME/ANSI B 18.3.4M - 1986 (R2008) Hexagon Socket Button Head Cap Screws (Metric Series) (ASTM F835M / F879M / A1-70)

Unit: 毫米(mm)

Thread Size
d

P	Pitch
d_k	max
	min
k	max
	min
c	Ref.
s	Nominal Size
	max
	min
t	min
e	min
L ^①	maximum standard length	Nominal Size
d_a	max
	min
r	min
w	min

0.5	0.7	0.8
5.70	7.60	9.50
5.40	7.24	9.14
1.65	2.20	2.75
1.43	1.95	2.50
0.38	0.38	0.50
2.0	2.5	3.0
2.045	2.56	3.071
2.02	2.52	3.02
1.04	1.30	1.56
2.3	2.87	3.44
12	20	30
3.6	4.7	5.7
3.2	4.4	5.4
0.1	0.2	0.2
0.2	0.3	0.38

①,Screws of nominal lengths equal to or shorter than the longest standard lengths listed in Table shall be threaded full length. For longer screws, the length of complete (full form) thread shall, at the option of the manufacturer, be between a minimum limit equal to twice the basic screw diameter plus 12.0 mm and a maximum limit of to within two pitches (threads) of the head.

GB /T 70.2 - 2015

Hexagon Socket Button Head Screws
Suppliers(2)

GB /T 70.2 - 2008

Hexagon socket button head screws
Suppliers(2)

GB /T 70.2 - 2000

Hexagon Socket Button Head screws
Suppliers(2)

GB /T 70.4 - 2015

Hexagon Socket Button Head Screws with Collar

ISO 7380-1 - 2022

Hexagon Socket Button Head Screws
Suppliers(3)

ISO 7380-2 - 2022

Hexagon Socket Button Head Screws with Collar
Suppliers(3)

ISO 7380-1 - 2011

Hexagon Socket Button Head Screws
Suppliers(3)

ISO 7380-2 - 2011

Hexagon Socket Button Head Screws With Collar
Suppliers(3)

ISO 7380 - 2004

Hexagon Socket Button Head Screws
Suppliers(3)

ISO 7380 - 1997

Hexagon socket button head screws
Suppliers(3)

JIS B 1174 - 2017

Hexagon Socket Button Head Screws

JIS B 1174 - 2017

Hexagon Socket Button Head Screws With Collar

JIS B 1174 - 2006

Hexagon Socket Button Head Screws

JIS B 1174 - 1994

Hexagon socket button head screws

ASME/ANSI B 18.3 - 2003

Spline socket button head cap screws

ASME/ANSI B 18.3.4M - 1986

Metric heaxagon socket round head screws

NF E 25-126 - 2004

Hexagon Socket Button Head Screws

BS 2470 - 1973

Hexagon Socket Round Head Screws - Unified Thread

YJT 4026

Hexagon Socket Flat Head Screw

YJT 4080

Hexagon Socket Button Head Screws

DIN EN ISO 7380 (-1) - 2011

Hexagon Socket Button Head Screws

DIN EN ISO 7380 (-2) - 2011

Hexagon Socket Button Head Screws with Collar

ASME B 18.3 (T11) - 2012

Hexagon Socket Button Head Cap Screws [Table 11] (ASTM F835 / F879)

ASME B 18.3 - 2003 (R2008)

Hexagon Socket Button Head Cap Screws

GB	GB /T 70.2
ISO	ISO 7380(-1)
DIN	DIN EN ISO 7380(-1)
ASME/ANSI	ASME/ANSI B 18.3.4M
Some of the above standards may be approximate equivalent. If there is any objection, the standard original shall prevail.