Bronze Clamps | McMaster-Carr

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46 Products

Grounding Rod Clamps


	Single-Nut Clamp, Two-Piece Design	Dual-Nut Clamp Lay-In Wire Two-Piece Design

Connect bare-copper ground wire to grounding rods.

Dual-Nut Clamp—Dual nut clamps give you more flexibility than single nut clamps.

U-Bolt Clamp—U-bolt clamps are the most adjustable and work with rods ranging in size from 3/8" to 1".

Lay-In Wire—For clamps with lay-in wire, there’s no need to thread wire through them. Simply lay the wire into the clamp’s opening and fasten.

Two-Piece Design—Two-piece design clamps are easier to install onto bends and continuous loops than other single- and dual-nut clamps.

UL 467—UL 467 clamps meet a standard for direct burial.

	Material	Features	Specs. Met		Each
Single-Nut Clamp



	1/2" (10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1/0) 5/8" (10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1/0) 3/4" (8, 7, 6, 5, 4, 3, 2, 1, 1/0)	Bronze	—	UL 467	0000000	00000


	1/2" (6, 4) 3/4" (6, 4)	Bronze	Two-Piece Design	—	0000000	00000


	Dual-Nut Clamp



			1/4" to 1" (10, 9, 8, 7, 6, 5, 4, 3, 2)	Bronze	Lay-In Wire, Two-Piece Design	—	0000000	00000


			1/2" (6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM, 300 MCM, 350 MCM) 5/8" (6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM, 300 MCM, 350 MCM) 3/4" (2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM)	Bronze	—	UL 467	0000000	00000


			U-Bolt Clamp



					3/8" to 1" (6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM, 300 MCM, 350 MCM, 400 MCM, 500 MCM)	Bronze	—	UL 467	0000000	00000

Nonsparking C-Clamps

All components of these clamps are made of aluminum-bronze that is FM approved. They satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present.

Warning: Do not use these tools in direct contact with acetylene.

	Opening
	Max.	Min.	Reach Lg.	Holding Cap., lb.	Body Ht.	Screw Material	Certification		Each
Aluminum Bronze Body







				Square Handle

				3/4"	0"	3/4"	300	3"	Aluminum Bronze	FM Approved	0000000	0000000


				4 1/2"	0"	3"	3,800	11 1/2"	Aluminum Bronze	FM Approved	0000000	000000

Grounding Splices

Join two grounding wires to extend the length of your grounding connection or connect to an existing ground wire.

For Wire Ga.	Material	Certification	Each
12, 11, 10, 9, 8, 7, 6	Bronze	UL Listed, CSA Certified	00000
8, 7, 6	Bronze	UL Listed, CSA Certified	0000
8, 7, 6, 5, 4, 3, 2, 1, 1/0	Bronze	UL Listed, CSA Certified	0000
4	Bronze	UL Listed, CSA Certified	0000

Grounding Pipe Clamps


For 1 Wire	For 2 Wires

Attach grounding wire to pipes.

	For Pipe
For No. of Wires	Size	OD	For Wire Ga.	Material	Electrical Connection	Certification		Each



	1	1/2 to 1	1/2" to 1 1/4"	16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2	Bronze	Screw Terminal	UL Listed	0000000	000000


	2	1 to 1 1/4	3/4" to 1 11/16"	6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM	Tin-Plated Bronze	Screw Terminal	UL Listed	0000000	00000
	2	1 1/2 to 2	1" to 2 3/8"	6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM	Tin-Plated Bronze	Screw Terminal	UL Listed	0000000	00000
	2	2 1/2 to 3	2 1/4" to 3 1/2"	6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM	Tin-Plated Bronze	Screw Terminal	UL Listed	0000000	00000
	2	3 1/2 to 4	3 1/4" to 4 1/2"	6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM	Tin-Plated Bronze	Screw Terminal	UL Listed	0000000	00000
	2	5 to 6	5 5/8" to 6 5/8"	6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM	Tin-Plated Bronze	Screw Terminal	UL Listed	0000000	00000

Grounding Screws

Connect grounding wires to steel structures, fence posts, and transformers. These screws can also tap one or two cables from a bus bar.

For Wire Ga.	Screw Size	Material	Certification	Each
12, 11, 10, 9, 8	1/4"	Bronze	CSA Certified, UL Listed	000000
10, 9, 8, 7, 6	1/4"	Bronze	CSA Certified, UL Listed	00000
10, 9, 8, 7, 6, 5, 4	5/16"	Bronze	CSA Certified, UL Listed	00000
10, 9, 8, 7, 6, 5, 4, 3, 2	3/8"	Bronze	CSA Certified, UL Listed	00000
10, 9, 8, 7, 6, 5, 4, 3, 2, 1	3/8"	Bronze	CSA Certified, UL Listed	00000
2, 1, 1/0, 2/0	1/2"	Bronze	CSA Certified, UL Listed	00000
2, 1, 1/0, 2/0, 3/0	1/2"	Bronze	CSA Certified, UL Listed	000000
1, 1/0, 2/0, 3/0, 4/0	5/8"	Bronze	CSA Certified, UL Listed	000000

Hot Stick Heads

Style H

Swap out the head on your high-voltage operating stick to complete different tasks. These heads can operate switches, pull cotter pins, change out fuses, and more. They connect to any stick with a universal attachment style, no tools required. To reach tight spots, attach them at different angles on your stick’s grooved tip.

Style H—Style H clamp onto fuses to change them out. Rotate your stick to open and close the jaws.

	Lg.	Wd.	Thk.	Clamping Distance Range	Jaw Material	Head Material	Head Range of Motion		Each
Universal



	H	8"	2 3/4"	3 1/2"	1/2" to 1 1/2"	Plastic-Coated Bronze	Bronze	180°	0000000	0000000


	H	10 1/2"	4"	4 1/2"	7/8" to 2"	Plastic-Coated Bronze	Bronze	180°	0000000	000000
	H	10 13/16"	2 1/4"	5 5/8"	1 1/2" to 3 5/8"	Plastic-Coated Bronze	Bronze	180°	0000000	000000

Grounding Clamps for Welding

Designed specifically for use with welding circuits.

C-Clamp

Heavy Duty

C-clamps tighten with a handle. Use these multipurpose tools for strong clamping in nearly any application.

Heavy Duty—Heavy duty clamps have a strong frame that won’t spread when holding big workpieces, such as large diameter pipe and thick plate.

Copper-Plated Steel Screw—Clamps that have copper-plated components prevent weld spatter from sticking.

	For No. of Wires	For Wire Ga.	Max. Cable Outlet Dia.	Jaw Opening	Connection Material	Electrical Connection	Cable Connection	Features		Each
Standard



	300	—	1/0, 2/0	0.56"	2"	Bronze	Grounding Clamp	Welding	Copper-Plated Steel Screw	0000000	000000


	300	—	1/0, 2/0	0.56"	2"	Bronze	Grounding Clamp	Screw Terminal	Copper-Plated Steel Screw	0000000	00000
	600	—	3/0, 4/0	0.63"	2"	Bronze	Grounding Clamp	Welding	Copper-Plated Steel Screw	0000000	00000
	600	—	3/0, 4/0	0.63"	2"	Bronze	Grounding Clamp	Screw Terminal	Copper-Plated Steel Screw	0000000	00000


	Heavy Duty



			600	1	3/0, 4/0	0.66"	3 3/8"	Bronze	Grounding Clamp	Welding	Copper-Plated Steel Screw	0000000	000000


			600	1	3/0, 4/0	0.66"	3 3/8"	Bronze	Grounding Clamp	Screw Terminal	Copper-Plated Steel Screw	0000000	000000

Bonding and Grounding Clamps with Cable

Create a grounding path to prevent static charge buildup.

Also Available: Additional cable lengths for noninsulated and insulated cables with two connections. Please select 6955K889 and specify connection types and length.

Cable with 2 Connections


Retracting Cable with Two Connections	Bronze Pipe Clamp	Plier Clamp

Steel Pipe Clamp	Ring Terminal	Quick-Release Clamp

Retracting Cable with Three Connections	Cable with Two Connections	C-Clamp

Alligator Clip

			Galvanized Steel Cable
	Electrical Connection	Connection Material	Lg.	OD	Insulation Color		Each
Insulated Retracting Cable



		Plier Clamp (1 1/8" Jaw Opening) Pipe Clamp (1 5/8" Jaw Opening)	Aluminum Bronze	5 ft.	0.13"	Orange	00000000	000000


		Plier Clamp (1 1/8" Jaw Opening) Pipe Clamp (1 5/8" Jaw Opening)	Aluminum Bronze	10 ft.	0.13"	Orange	0000000	000000
		Plier Clamp (1 1/8" Jaw Opening) Pipe Clamp (1 5/8" Jaw Opening)	Aluminum Bronze	20 ft.	0.13"	Orange	0000000	00000

Grounding Plate Clamps

Eliminate the need to drive a new ground rod—these clamps connect grounding wire to an existing flat grounding surface, such as the lid of an electric meter box.

For Wire Ga.	For Max. Plate Thk.	Material	Electrical Connection	Certification		Each



1	14, 13, 12, 11, 10, 9, 8, 7, 6	3/8"	Bronze	Screw Terminal	UL Listed	0000000	000000

Bonding and Grounding Clamps

C-Clamps

Jaw Opening	For Max. Cable OD	Connection Material		Each
1 1/8"	0.25"	Bronze	00000000	000000

Quick-Release Clamps

Quick-release clamps open when the cable is pulled. They can be used to ground vehicles.

Jaw Opening	For Max. Cable OD	Connection Material		Each
1 1/4"	0.38"	Bronze	00000000	0000000

Drum Slings


Style D

Lift heavy drums without risking injuries and chemical spills. These slings are cost-effective compared to drum lifters, but you may need an extra person to guide loads since drums can sway.

Horizontal Lift


Style D

Load and unload drums onto stackable drum racks, drum dispensing stands, and drum mixers.

Aluminum-Bronze Hooks—Prevent sparks when hooks scrape against metal drums in locations with combustible vapors or residues. With 304 stainless steel legs, they won’t rust in damp and humid locations.

		For Drum							Eye
	Style	Cap., gal.	Max. Ht.	Wt. Cap., lb.	Drum Attachment Location	Body Material	Bar Dia.	Hook Opening Wd.	Lg.	Wd.		Each
Aluminum-Bronze Hooks



		D	55	36"	1,000	Rim	304 Stainless Steel	1/2"	3/4"	3"	2 3/4"	000000	0000000

Wire Rope Clamps with Thimbles—Not for Lifting

A clamp and thimble in one convenient fitting simplifies installation while providing support and fray protection to the wire rope loop. Use a torque wrench to tighten the clamp.

Warning: Test all assemblies for required strength before use. Do not use with coated rope unless the coating is removed.

	For Wire Rope			Loop
	Dia.	Construction	Rope Turnback	Inside Lg.	Inside Wd.	Overall Lg.	Fabrication	Req. Torque, ft·lbf	Wt. Cap., lb.		Each
Bronze



		1/8"	6 × 19 Fiber Core 6 × 19 IWRC 6 × 26 IWRC 6 × 37 IWRC 6 × 7 Fiber Core	3 1/4"	15/16"	9/16"	2 1/2"	Cast	8	300	0000000	000000


		3/16"	6 × 19 Fiber Core 6 × 19 IWRC 6 × 26 IWRC 6 × 37 IWRC 6 × 7 Fiber Core	3 3/4"	1 1/8"	21/32"	2 7/8"	Cast	12	600	0000000	00000
		1/4"	6 × 19 Fiber Core 6 × 19 IWRC 6 × 26 IWRC 6 × 37 IWRC 6 × 7 Fiber Core	4 3/4"	1 9/16"	7/8"	3 3/4"	Cast	19	1,000	0000000	00000
		5/16"	6 × 19 Fiber Core 6 × 19 IWRC 6 × 26 IWRC 6 × 37 IWRC 6 × 7 Fiber Core	5 1/4"	1 15/16"	1 1/16"	4 5/8"	Cast	19	1,600	0000000	00000

Dual Slide-Bolt-Latch Snap Hooks

The slide bolt provides a more secure connection than standard snap hooks.

Bronze—Bronze snap hooks have excellent corrosion resistance.

	Snap Opening Wd.	Usable Lg.	Latch Type		Each
Bronze



	Not Rated	7/16"	4 1/8"	Slide Bolt	0000000	00000