Battery Fasteners | McMaster-Carr

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Fiberglass-Reinforced Polypropylene

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Thread Length

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Color

Hook Length

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For Terminal Polarity

Negative

Positive

Export Control Classification Number (ECCN)

EAR99

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Battery Terminal Fastener Type

Side Terminal Bolt

Square Head Bolt with Shoulder Nuts

Stud Thread Size

Polarity

Adapts From

Battery Terminal Fasteners


Side Terminal Bolt	Square Head Bolt with Shoulder Nuts

Replace battery terminal hardware.

Square Head Bolt with Shoulder Nuts—Use square head bolts with shoulder nuts with battery terminal clamps.

Battery Terminal Fastener Type	Thread Size	Thread Lg.	For Terminal Polarity	Color	Material	Pkg. Qty.		Pkg.
Side Terminal Bolt	3/8"-16	13/32"	Negative	—	Zinc-Plated Steel	10	0000000	000000
Square Head Bolt with Shoulder Nuts	5/16"-18	1 1/4"	Negative	Black	PTFE-Coated Steel	10	00000000	00000
Square Head Bolt with Shoulder Nuts	5/16"-18	1 1/4"	Positive	Red	PTFE-Coated Steel	10	00000000	00000

Low-Strength Steel Hold-Down Bolts

About half the strength of medium-strength bolts, these bolts are for light duty work-holding. They’re often used to hold batteries in place and have a hook on one end that grabs as the other end is tightened with a nut. The zinc plating provides corrosion resistance in wet environments.

					Hook
	Lg.	Threading	Thread Lg.	Thread Spacing	Lg.	Thk.	Angle	Tensile Strength, psi	Includes	Pkg. Qty.		Pkg.
Zinc-Plated Steel with Round Hook







				1/4"-20 Threads

				5"	Partially Threaded	2 1/4"	Coarse	3/4"	1/4"	60°	60,000	Nut, Washer	2	000000000	00000


				8"	Partially Threaded	3 7/8"	Coarse	3/4"	1/4"	90°	60,000	Nut, Washer	2	000000000	00000
				9 1/4"	Partially Threaded	2 3/4"	Coarse	11/16"	1/4"	55°	60,000	Nut, Washer	2	000000000	00000
				10"	Partially Threaded	3 13/16"	Coarse	3/4"	1/4"	90°	60,000	Nut, Washer	2	000000000	00000
				10"	Partially Threaded	3 13/16"	Coarse	3/4"	1/4"	30°	60,000	Nut, Washer	2	000000000	00000




						5/16"-18 Threads

						6 3/4"	Partially Threaded	2 1/4"	Coarse	3/4"	5/16"	60°	60,000	Nut, Washer	2	000000000	0000


						10 5/16"	Partially Threaded	8"	Coarse	9/16"	5/16"	60°	60,000	Nut, Washer	2	000000000	0000


						Zinc-Plated Steel with Flat Hook







										1/4"-20 Threads

										4 3/4"	Partially Threaded	2 3/4"	Coarse	1/2"	5/32"	45°	60,000	Nut, Washer	2	000000000	0000


										9"	Partially Threaded	2 3/4"	Coarse	1/2"	5/32"	45°	60,000	Nut, Washer	2	000000000	00000




												5/16"-18 Threads

												5 7/8"	Partially Threaded	2 9/16"	Coarse	5/16"	5/32"	20°	60,000	Nut, Washer	1	000000000	0000


												10 5/16"	Partially Threaded	8"	Coarse	1/2"	5/32"	45°	60,000	Nut, Washer	2	000000000	00000




														3/8"-16 Threads

														10"	Partially Threaded	2 3/4"	Coarse	1/2"	5/32"	45°	60,000	Nut, Washer	1	000000000	0000

Battery Terminal Adapters

Convert one battery terminal style to another.

Side Terminal × Double Side Terminal

Use side terminal × double side terminal adapter to power two devices with the same battery.

For Terminal Polarity	Thread Size	Thread Lg.	Stud Thread Size	Stud Thread Lg.	Includes	Material		Each
Negative	3/8"-16	1"	5/16"-18	1/2"	Zinc-Plated Steel Nut and Washer	Brass	0000000	000000

Side Terminal × Post Terminal

For Terminal Polarity	Thread Size	Thread Lg.	Material	Stud Material		Pair
Negative/Positive	3/8"-16	5/16"	Lead	Steel	0000000	00000

Stud Terminal × Post Terminal

For Terminal Polarity	Thread Size	Material		Pair
Negative/Positive	5/16"-18	Lead	0000000	00000
Negative/Positive	3/8"-16	Lead	0000000	0000

Top Post Terminal × Double Top Post Terminal

For Terminal Polarity	Color	Thread Size	Thread Lg.	Includes	Specs. Met	Material		Each
Negative	Black	3/8"-16	1 1/4"	Zinc-Plated Steel Nuts and Bolts	Fed. Spec. A-A-52425 Type I, Fed. Spec. A-A-52425 Type II	Lead	000000	00000
Positive	Red	3/8"-16	1 1/4"	Zinc-Plated Steel Nuts and Bolts	Fed. Spec. A-A-52425 Type I, Fed. Spec. A-A-52425 Type II	Lead	000000	0000

Battery Terminal Covers

For Stud

Terminals

Cover battery terminals to protect against corrosion and dirt.

	Thread Size	Material	Color (For Terminal Polarity)		Each
For Stud Terminals



	Screw On	3/8"-16	Stainless Steel	Black (Negative)	00000000	00000


	Screw On	3/8"-16	Stainless Steel	Red (Positive)	00000000	0000

Marine-Grade Battery Terminal Clamps

Made of lead, these clamps resist corrosion to stand up to marine-grade environments. Use a lug to attach your cable to the stud.

	Stud Thread Size	For Battery Post Location	Terminal Material	Polarity		Each
Straight



	2/0	5/16"-18	Top	Lead	Negative	00000000	00000


	2/0	3/8"-16	Top	Lead	Positive	00000000	0000

Battery Holders for Large-Cell Batteries


For Flush Battery Covers	For Raised Battery Covers

Secure large-cell batteries to trays with these adjustable holders.

	For Battery
	Max. Ht.	Wd.	Dp.	Material	Includes		Each
For Flush Battery Covers



		8"	8 5/8" to 14 3/4"	8 5/8" to 14 3/4"	Fiberglass-Reinforced Polypropylene	Zinc-Plated Steel L-Bolts and Fasteners	000000	000000


		10"	8 5/8" to 14 3/4"	8 5/8" to 14 3/4"	Fiberglass-Reinforced Polypropylene	Zinc-Plated Steel L-Bolts and Fasteners	000000	00000


		For Raised Battery Covers



				8"	4" to 6 1/8"	4" to 6 1/8"	Fiberglass-Reinforced Polypropylene	Zinc-Plated Steel L-Bolts and Fasteners	0000000	00000


				8"	5 1/2" to 9"	5 1/2" to 9"	Fiberglass-Reinforced Polypropylene	Zinc-Plated Steel L-Bolts and Fasteners	000000	00000
				10"	4" to 6 1/8"	4" to 6 1/8"	Fiberglass-Reinforced Polypropylene	Zinc-Plated Steel L-Bolts and Fasteners	0000000	00000
				10"	5 1/2" to 9"	5 1/2" to 9"	Fiberglass-Reinforced Polypropylene	Zinc-Plated Steel L-Bolts and Fasteners	000000	00000