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QC /T 891 - 2011

Welding Screws for Plastic

QC /T 891 - 2011 塑料用焊接螺钉

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Dimensional Specifications — QC /T 891 - 2011 (mm)

Size	P	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
NST 3	9.4	2.4	7	1.4	9.2	1.2	0.55	0.45	1	1.2
NST 4	14.5	4	10.8	2.7	14.2	2.1	1.05	0.95	1.9	2.4
NST 3.5	12.3	3.6	9.2	2.1	12.1	1.7	0.8	0.7	1.5	1.9

Related Standards

GB /T 902.4 (PS) - 2010— Threaded Studs with Flange for Short-cycle Drawn Arc Stud Welding - PS Type Threaded Stud with Flanged IFI 148 (U3) - 2002— Type U3 Projection Weld Studs IFI 148 (UR) - 2002— Type UR Projection Weld Studs IFI 148 (UC4) - 2002— Type UC4 Projection Weld Studs IFI 148 (T3) - 2002— Type T3 Projection Weld Studs IFI 148 (US3) - 2002— Heavy Duty Type US3 Projection Welding Studs IFI 148 (TC4) - 2002— Flat Round Head with Rings on Undertake Surface Welding Screws IFI 148 (TUS3) - 2002— Type TUS3 Projection Weld Studs

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