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.

Printable pdf file

 

 

Double End

Part Number

Thread
Size

Body Size

Carbon Stainless 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
CS-715-1 SS-715-1 4-40 9/32
CS-715-2 SS-715-2 4-40 13/32
CS-715-3 SS-715-3 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
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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