Uniforce Clamps | McMaster-Carr

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33 Products

Dual-Clamping Fixture Clamps

Set one of these clamps between two workpieces in a fixture and tighten the screw to push the clamp's sides out for a secure hold. The minimal contact leaves more of the workpieces free for machining.

				Thread		Drive					Each		Package
Lg.	Wd.	Ht.	Max. Clamping Force, lbf	Size	Lg.	Size	Style	Material	Screw Material	Wedge Material		Each	Pkg. Qty.		Pkg.



	5/16"	1/4"	17/64"	200	2-56	3/8"	5/64"	Hex	Aluminum	Steel	Steel	8693A15	000000	6	8693A65	000000


	15/32"	3/8"	3/8"	300	4-40	1/2"	3/32"	Hex	Aluminum	Steel	Steel	8693A16	00000	6	8693A66	00000
	5/8"	1/2"	37/64"	500	8-32	5/8"	9/64"	Hex	Aluminum	Steel	Steel	8693A11	00000	8	8693A61	00000
	15/16"	3/4"	49/64"	1,500	1/4"-20	7/8"	3/16"	Hex	Aluminum	Steel	Steel	8693A12	00000	6	8693A62	00000
	1 1/4"	1"	1 1/64"	2,000	5/16"-18	1 1/4"	1/4"	Hex	Aluminum	Steel	Steel	8693A13	00000	4	8693A63	00000
	1 7/8"	1 1/2"	1 33/64"	3,500	1/2"-13	2"	3/8"	Hex	Aluminum	Steel	Steel	8693A14	00000	2	8693A64	000000
	2 1/2"	2"	2 1/32"	6,000	5/8"-11	2 1/2"	1/2"	Hex	Aluminum	Steel	Steel	8693A17	000000	2	8693A67	000000
	8.1 mm	6.4 mm	6.9 mm	195	M2 × 0.4 mm	10 mm	1.5 mm	Hex	Aluminum	Steel	Steel	8693A71	00000	6	8693A75	00000
	11.9 mm	9.5 mm	9.7 mm	300	M2.5 × 0.45 mm	12 mm	2 mm	Hex	Aluminum	Steel	Steel	8693A72	00000	6	8693A76	00000
	15.9 mm	12.7 mm	14.5 mm	500	M4 × 0.7 mm	16 mm	3 mm	Hex	Aluminum	Steel	Steel	8693A73	00000	8	8693A77	00000
	23.8 mm	19 mm	19 mm	1,500	M6 × 1 mm	25 mm	5 mm	Hex	Aluminum	Steel	Steel	8693A74	00000	6	8693A78	00000


	31.7 mm	25.4 mm	25.9 mm	2,500	M8 × 1.25 mm	30 mm	6 mm	Hex	Aluminum	Steel	Steel	8693A81	00000	4	8693A79	00000

Machinable Dual-Clamping Fixture Clamps

Machine these fixture clamps to match the contours of your workpieces for a stronger grip. Place the clamp between the two workpieces in a fixture and tighten the screw to extend the sides of the clamp, creating a secure hold against both workpieces. Minimal contact with the workpiece leaves more of its surface accessible for machining. Each clamp comes with a locking plate to keep the clamp rigid while machining it to fit your application.

					Thread		Drive
Lg.	Wd.	Ht.	Max. Clamping Force, lbf	Max. Machinable Wd.	Size	Lg.	Size	Style	Material	Screw Material	Wedge Material		Each



	5/8"	1 1/8"	1/2"	500	0.18"	8-32	5/8"	9/64"	Hex	Aluminum	Steel	Steel	3122N11	000000


	15/16"	1 1/2"	3/4"	1,500	0.26"	1/4"-20	7/8"	3/16"	Hex	Aluminum	Steel	Steel	3122N12	00000
	1 1/4"	2"	1"	2,500	0.39"	5/16"-18	1 1/4"	1/4"	Hex	Aluminum	Steel	Steel	3122N13	00000
	1 7/8"	3"	1 1/2"	3,500	0.62"	1/2"-13	2"	3/8"	Hex	Aluminum	Steel	Steel	3122N14	000000
	2 1/2"	4"	2"	6,000	0.8"	5/8"-11	2 1/2"	1/2"	Hex	Aluminum	Steel	Steel	3122N15	000000

Machinable Low-Profile Fixture Clamps

Machine these fixture clamps to match the contours of your workpiece for a stronger grip. They install into a slot in your fixture to grip at the bottom of workpiece edges, giving the cutting tool maximum access to the workpiece. Thread the clamp into a tapped hole and give the center screw a half turn for quick clamping.

	Head								Thread		Drive			Each		Package
	Lg.	Wd.	Ht.	Max. Movement	Material	Max. Clamping Force, lbf	Min. Workpiece Contact	For Slot Dp.	Size	Lg.	Size	Style	Screw Material		Each	Pkg. Qty.		Pkg.
Blunt Edge



		1"	1"	0.7"	0.05"	Steel	6,000	1/4"	0.45"	3/8"-16	23/32"	5/16"	Hex	Steel	3123N13	000000	4	3123N11	0000000


		1 1/2"	1 1/2"	1.015"	0.075"	Steel	12,000	3/8"	0.64"	1/2"-13	25/32"	3/8"	Hex	Steel	3123N14	00000	2	3123N12	00000