Flanged Weld Studs | McMaster-Carr

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33 Products

Stud Welders

Join threaded studs and pins to metal surfaces in milliseconds, forming bonds stronger than the studs themselves. Just load a stud into the gun, aim it against your base material, and pull the trigger to fuse the two together.

Unlike drawn arc stud welders, our capacitor discharge systems work with metals less than a millimeter thick. They won’t leave fastener heads on the opposite side of the base material, so they’re often used for jobs requiring a clean-looking finish, such as attaching handles to high-end cookware. The one-sided welds are also preferred by the USDA for fabricating dairy tanks and other food-safe machinery – with no holes drilled, germs have nowhere to hide.

Threaded Studs

Suitable for steel and stainless steel base materials, as well as aluminum and brass

Copper-Plated Steel—Copper-plated steel studs have good corrosion resistance.

18-8 Stainless Steel—18-8 stainless steel studs are more corrosion resistant than copper-plated steel studs.

Aluminum—Aluminum studs are more lightweight than steel or stainless steel studs. They’re nonmagnetic. In wet environments, they resist corrosion.

				Copper-Plated Steel			18-8 Stainless Steel			Aluminum
Thread Size	For Collet Thread Size	Head Dia.	Lg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.



	4-40	4-40	3/16"	1/2"	100	7845A55	000000	—	———	0	—	———	0


	6-32	6-32	7/32"	3/8"	100	7845A132	00000	100	7845A141	000000	—	———	0
	6-32	6-32	7/32"	1/2"	100	7845A51	0000	100	7845A88	00000	—	———	0
	6-32	6-32	7/32"	3/4"	100	7845A72	00000	100	7845A82	00000	—	———	0
	6-32	6-32	7/32"	1 1/2"	100	7845A77	00000	100	7845A83	00000	—	———	0
	8-32	8-32	1/4"	3/8"	100	7845A133	00000	—	———	0	—	———	0
	8-32	8-32	1/4"	1/2"	100	7845A52	0000	100	7845A89	00000	—	———	0
	8-32	8-32	1/4"	5/8"	100	7845A134	00000	—	———	0	—	———	0
	8-32	8-32	1/4"	3/4"	100	7845A78	00000	100	7845A84	00000	—	———	0
	10-24	10-24	1/4"	1/2"	100	7845A56	00000	100	7845A91	00000	—	———	0
	10-24	10-24	1/4"	3/4"	—	———	0	—	———	0	100	7845A144	000000


	10-24	10-24	1/4"	1"	100	7845A57	00000	100	7845A92	00000	—	———	0
	10-32	10-32	1/4"	3/8"	—	———	0	100	7845A137	00000	—	———	0
	10-32	10-32	1/4"	1/2"	—	———	0	100	7845A138	00000	—	———	0
	10-32	10-32	1/4"	3/4"	—	———	0	100	7845A139	00000	—	———	0
	1/4"-20	1/4"-20	5/16"	1/2"	100	7845A53	00000	100	7845A85	00000	100	7845A142	00000
	1/4"-20	1/4"-20	5/16"	5/8"	—	———	0	100	7845A135	00000	—	———	0
	1/4"-20	1/4"-20	5/16"	3/4"	100	7845A131	00000	100	7845A86	00000	—	———	0
	1/4"-20	1/4"-20	5/16"	1"	100	7845A58	00000	100	7845A87	00000	100	7845A143	00000
	1/4"-20	1/4"-20	5/16"	1 1/2"	—	———	0	100	7845A136	000000	—	———	0