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Unit:mm

General parts of cold heading dies for fasteners - Cutting dies, Type D1

JB /T 4208.3 - 2014

Display drawing:

机械行业JB /T4208.3 - 2014 JB4208.3 4208.3JB General parts of cold heading dies for fasteners - Cutting dies, Type D1

Thread Size

M8

M10

M12

M14

M16

d		GB5780~5783、GB5785~5786	Nominal Size
			max
			min
		GB5784、GB65~69、GB818~820	Nominal Size
			max
			min
		GB70.1	Nominal Size
			max
			min
D		Nominal Size
		max
		min
L		max=nominal size
		min
D₁
d₁
a
t₁
t₃

7.72	9.72	11.68	13.68	15.68
7.858	9.858	11.845	13.845	15.845
7.8	9.8	11.775	13.775	15.775
7.04	8.85	10.67	12.49	14.49
7.178	8.988	10.835	12.655	14.655
7.12	8.93	10.765	12.585	14.585
7.8	9.8	11.75	13.75	15.75
7.938	9.938	11.915	13.915	15.915
7.88	9.88	11.845	13.845	15.845
26	26	26	32	32
26.088	26.088	26.088	32.107	32.107
26.055	26.055	26.055	32.068	32.068
30	30	30	40	40
29.87	29.87	29.87	39.84	39.84
12	15	18	21	24
10	12	15	17	20
12°	16°	18°	20°	20°
0.04	0.04	0.04	0.04	0.04
0.05	0.05	0.05	0.05	0.05

Alternative history

JB /T 4208.13 - 1996 JB /T 4208.3 - 2014

Similar Standards

1		[GB] GB /T 25674 - 2010	Screw Slotting Saws
2		[GB] GB 1122 - 1985	Screw Slotting Saws