GB /T 6560 - 2014 Cross Recessed Pan Head Thread Rolling Screws

Weight Calculator Message Error Correction 中文版

Unit: 毫米(mm)

Thread Size
d

M2.5

P	Pitch
a	max
b	min
d_a	max
d_k	max=nominal size
	min
k	max=nominal size
	min
r	min
R₁	≈
x	max
Socket No.
M₁	Ref.
Penetration depth	Type H	max
		min
M₂	Ref.
Penetration depth	Type Z	max
		min

0.4	0.45	0.5
0.8	0.9	1
25	25	25
2.6	3.1	3.6
4	5	5.6
3.7	4.7	5.3
1.6	2.1	2.4
1.46	1.96	2.26
0.1	0.1	0.1
3.2	4	5
1	1.1	1.25
0	1	1
1.9	2.7	3
1.2	1.55	1.8
0.9	1.15	1.4
2.1	2.6	2.8
1.42	1.5	1.75
1.17	1.25	1.5

Thread Length
b

①,When partially threads are made on the screw, the unthreaded part can be made into a cylindrical or triangular shape with a diameter equal to or less than the diameter of circumcircle (GB/T 6559)

Alternative history GB /T 6560 - 1986 GB /T 6560 - 2014

Suppliers

Best price if from GlobalFastener.com

Suzhou Hanlinyu Precision Hardware Co., Ltd.
Contact:	Amy Li
Cellphone：	86-13771867939
QQ：	402398463
email：	402398463@qq.com
Material: Carbon steel, Stainless steel; Grade: 8.8; Specifications: M2-M12

Wenzhou Fengding Fastener Manufacture Co., Ltd.
Contact:	Mr.Huang
Cellphone：	+86-18857755588 13676725866
email：	wzfdjgj@163.com
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