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GB 6564 - 1986

Hexagon Lobular Socket Thread Forming Screws

GB 6564 - 1986 内六角花形圆柱头自攻锁紧螺钉

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Dimensional Specifications — GB 6564 - 1986 (mm)

Size	P	e	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
M6	1.25	2.2	2.6	12.73	5	2.5	35	T40	5	13	4.7
M8	1.75	3.32	3.8	17.73	7	3.5	35	T55	8.2	18	6.64

Related Standards

GB /T 6564.1 - 2014— Hexalobular Socket Head Cap Thread Rolling Screws DIN 7500 (PE) - 2009— Hexalobular Socket Pan Head Thread Rolling Screws DIN 7500 (OE) - 2009— Hexalobular Socket Cheese Head Thread Rolling Screws DIN 7500 (QE) - 2009— Hexalobular Socket Raised Countersunk Head Thread Rolling Screws Q 260— Hexagon Lobular Socket Thread Forming Screws

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