Resistance Weld Screws

Resistance Weld Screws

GEMP ring-type weld screws were specially designed to assure positive self-centering in the mounting hole, thereby ensuring close tolerances between mounting centers. A mounting pilot is provided under the head which acts as a self-centering device, causing the screw to fit snugly in the mounting hole.

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Double End
Part Number		Thread Size	Body Size
Carbon	Stainless	Thread Size	Leg 'X'	Leg 'Y'
CS-615-1	-	4-40	13/32	1/4
CS-615-2	SS-615-2	6-32	13/32	1/4
CS-615-3	SS-615-3	8-32	13/32	1/4
CS-615-4	-	8-32	17/32	3/8
CS-615-14	SS-615-5	8-32	17/32	1/4
CS-615-5	-	10-32	17/32	3/8
CS-615-7	-	1/4-20	21/32	1/2

Single End
Part Number		Thread Size
Carbon	Stainless	Thread Size
CS-715-1	SS-715-1	4-40	9/32
CS-715-2	SS-715-2	4-40	13/32
CS-715-3	SS-615-3	6-32	13/32
CS-715-4	SS-715-4	8-32	13/32
CS-715-14	SS-715-14	8-32	17/32
CS-715-5	SS-715-5	10-32	17/32
CS-715-6	-	10-32	21/32
CS-715-7	SS-715-7	1/4-20	21/32
CS-715-8	-	1/4-20	25/32

Thread	Collar		Projection			Pilot
Thread	Diam.	Thk	Circle	Hgt.	Diam.	Diam.	Hgt.
A	B	C	D	E	F	G	H
4-40	0.250	0.047	0.194	0.011	0.018	0.107 - 0.111	0.038
6-32	0.250	0.047	0.194	0.011	0.018	0.133 - 0.137	0.038
8-32	0.312	0.062	0.238	0.015	0.024	0.158 - 0.163	0.046
10-32	0.437	0.062	0.350	0.015	0.024	0.184 - 0.188	0.046
1/4-20	0.500	0.078	0.410	0.019	0.031	0.242 - 0.248	0.054
Notes:	Thread Leg 'X': not more than 2 threads from pilot. Thread Leg 'Y': not more than 1-1/2 threads from collar. On single end studs Leg 'Y' is eliminated. Thread class for carbon steel is NC-2A. Thread class for stainless steel is NC-2. Tolerance on legs 'X' and 'Y' is 0.005 & 0.010 respectively

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