Click Specification

Hexagon Flange Head Tapping Screws For Plastic

QC /T 877 - 2011

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Thread Size

NST 3

NST 3.5

NST 4

NST 5

NST 5.5

NST 6

a	max
d_c	max
	min
c	min
s	max=nominal size
	min
e	min
k	max
k_w	min
r	max
r₁	max
y	Ref.	Type C
		Type F

2.1	2.5	2.7	3	3	3
6.4	7.5	8.5	10	11.2	12.8
4.1	6.9	7.8	9.3	10.3	11.8
0.4	0.5	0.6	0.6	0.8	1
4	5	5.5	7	7	8
3.82	4.82	5.32	6.78	6.78	7.78
4.27	5.36	5.92	7.55	7.55	8.66
3.2	3.8	4.3	5.2	6	6.7
1.25	1.6	1.8	2.2	2.5	2.8
0.1	0.1	0.2	0.2	0.2	0.3
0.2	0.2	0.2	0.3	0.3	0.4
2.3	2.6	3	3.7	4.3	4.8
1.9	2.4	2.6	3.6	3.9	4

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