GB/T 15856.3-1995米字槽半沉头自钻自攻螺钉(Z型)

GB/T 15856.3-1995米字槽半沉头自钻自攻螺钉(Z型)-紧固云

GB/T 15856.3-1995

米字槽半沉头自钻自攻螺钉(Z型)

Cross recessed raised countersunk head drilling screws with tapping screws thread-type Z

GB/T 15856.3-1995米字槽半沉头自钻自攻螺钉(Z型)尺寸图-紧固云
尺寸规格 规格X长度(P)
标准数据
  • ST2.9-ST4.2
  • ST4.8-ST6.3
(mm)
P
a max
dk max
dk min
f
k max
No.
M
t max
t min
Drilling plate thickness min
Drilling plate thickness max
z min
ST2.9
1.1
1.1
5.5
5.2
0.7
1.7
1
3.3
2.1
1.8
0.7
1.9
6.25
ST3.5
1.3
1.3
7.3
6.9
0.8
2.35
2
4.8
2.7
2.25
0.7
2.25
6.8
ST4.2
1.4
1.4
8.4
8
1
2.6
2
5.2
3.1
2.65
1.75
3
8.7
ST4.8
1.6
1.6
9.3
8.9
1.2
2.8
2
5.6
3.35
2.9
1.75
4.4
9.3
ST5.5
1.8
1.8
10.3
9.9
1.3
3
3
6.6
3.4
2.95
1.75
5.25
11
ST6.3
1.8
1.8
11.3
10.9
1.4
3.15
3
7.2
3.85
3.4
2
6
12