Pitbull Clamps | McMaster-Carr

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40 Products

Low-Profile Fixture Clamps

Blunt Edge

Knife Edge

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

Blunt Edge—Clamps with a blunt edge are less likely to mar your workpiece.

Knife Edge—Clamps with a knife edge bite into your workpiece for faster and more aggressive machining.

Brass Head—Clamps with brass heads are nonmarring when used with steel and aluminum workpieces.

	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



		3/8"	3/8"	7/32"	0.008"	Brass	200	0.075"	0.14"	4-40	7/32"	1/16"	Hex	Steel	2172A59	000000	8	2172A51	000000


		3/8"	3/8"	7/32"	0.008"	Steel	650	0.075"	0.14"	4-40	1/4"	3/32"	Hex	Steel	2172A13	00000	8	2172A33	00000
		1/2"	1/2"	9/32"	0.016"	Brass	400	0.1"	0.187"	8-32	11/32"	3/32"	Hex	Steel	2172A61	00000	8	2172A52	00000
		1/2"	1/2"	9/32"	0.016"	Steel	1,500	0.1"	0.187"	8-32	3/8"	9/64"	Hex	Steel	2172A15	00000	8	2172A35	00000
		3/4"	3/4"	7/16"	0.024"	Brass	950	0.15"	0.28"	1/4"-20	7/16"	5/32"	Hex	Steel	2172A62	00000	6	2172A53	00000
		3/4"	3/4"	7/16"	0.024"	Steel	3,600	0.15"	0.28"	1/4"-20	9/16"	3/16"	Hex	Steel	2172A18	00000	6	2172A38	00000
		1"	1"	11/16"	0.05"	Steel	6,000	0.25"	0.45"	3/8"-16	23/32"	5/16"	Hex	Steel	2172A22	00000	4	2172A42	000000
		1 1/2"	1 1/2"	1"	0.075"	Steel	12,000	0.375"	0.64"	1/2"-13	25/32"	3/8"	Hex	Steel	2172A19	00000	2	2172A39	00000
		9.52 mm	9.52 mm	5.5 mm	0.19 mm	Steel	625	1.9 mm	3.55 mm	M2.5 × 0.45 mm	6.6 mm	2 mm	Hex	Steel	2172A63	00000	8	2172A54	00000
		12.7 mm	12.7 mm	7.3 mm	0.406 mm	Steel	1,480	2.54 mm	4.75 mm	M4 × 0.7 mm	9.9 mm	3 mm	Hex	Steel	2172A64	00000	8	2172A55	00000
		19.05 mm	19.05 mm	10.9 mm	0.61 mm	Steel	3,590	3.81 mm	7.11 mm	M6 × 1 mm	14.48 mm	5 mm	Hex	Steel	2172A65	00000	6	2172A56	00000


		25.4 mm	25.4 mm	17.8 mm	1.27 mm	Steel	5,845	6.35 mm	11.43 mm	M10 × 1.5 mm	18.03 mm	8 mm	Hex	Steel	2172A66	00000	4	2172A57	000000
		38.1 mm	38.1 mm	25.8 mm	1.9 mm	Steel	11,240	9.52 mm	16.26 mm	M12 × 1.75 mm	19.56 mm	10 mm	Hex	Steel	2172A67	00000	2	2172A58	00000


		Knife Edge



				3/8"	3/8"	7/32"	0.008"	Steel	650	0.075"	0.14"	4-40	1/4"	3/32"	Hex	Steel	2172A12	00000	8	2172A32	00000


				1/2"	1/2"	9/32"	0.016"	Steel	1,500	0.1"	0.187"	8-32	3/8"	9/64"	Hex	Steel	2172A14	00000	8	2172A34	00000
				3/4"	3/4"	7/16"	0.024"	Steel	3,600	0.15"	0.28"	1/4"-20	9/16"	3/16"	Hex	Steel	2172A17	00000	6	2172A37	00000
				1"	1"	11/16"	0.05"	Steel	6,000	0.25"	0.45"	3/8"-16	23/32"	5/16"	Hex	Steel	2172A21	00000	4	2172A41	000000
				1 1/2"	1 1/2"	1"	0.075"	Steel	12,000	0.375"	0.64"	1/2"-13	25/32"	3/8"	Hex	Steel	2172A16	00000	2	2172A36	00000

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