JIS B 1111 (T1) - 1996 Cross recessed pan head screws

Unit: 毫米(mm)

Thread Size
d

M1.6

M2.5

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

0.35	0.4	0.45
0.7	0.8	0.9
25	25	25
2	2.6	3.1
3.2	4	5
2.9	3.7	4.7
1.3	1.6	2.1
1.16	1.46	1.96
0.1	0.1	0.1
2.5	3.2	4
0.9	1	1.1
0	0	1
1.7	1.9	2.7
1.6	2.1	2.6
0.95	1.2	1.55
0.7	0.9	1.15
0.9	1.42	1.5
0.65	1.17	1.25

per 1000 units ≈ kg(7.85kg/cm3)

Thread Length
b

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GotopScrews International Co., Limited
Contact:	Manager Zhuang
Cellphone：	86-13008864675
email：	hongwei@gotopscrews.com
Material: carbon steel, alloy steel, stainless steel, copper, aluminum, titanium; Specifications: M0.6~M6; Length: 1~60mm; Surface Treatment: galvanizing, nickel plating, zinc nickel alloy, electrophoresis, dacromet, CD grain, PVD, etc.