5/16 Chain | McMaster-Carr

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	Chain Style Chain Style

Straight Link

	Trade Size Trade Size	Show

5/16

	Trade Size Trade Size	Hide

1/8
3/16
7/32
1/4
9/32
5/16
3/8
7/16
1/2
5/8
3/4
7/8
1
9/0
7/0
8/0
6/0
1/0
5/0
3/0
2/0
4/0
2
3
4
5
5.5
6
7
8
10
12
13
14
16
18
20
25
30
35
40
45
50
60
65
X348
X458

	Material Material

Steel

Stainless Steel

	Finish Finish

Zinc Yellow-Chromate Plated

	System of Measurement System of Measurement

Inch

	Length Length

	Thickness Thickness

	Application Application

Not for Lifting

For Lifting

	Inside Width Inside Width

	Capacity Capacity

Less than 1,000 lbs.

1,000 to 9,999 lbs.

Not Rated

	Inside Length Inside Length

	Chain Grade Chain Grade

100

120

Not Rated

	For Use Outdoors For Use Outdoors

Yes

	For Fitting Thickness For Fitting Thickness

3/8"

7/16"

	Specifications Met Specifications Met

D.O.T. 49 CFR 393.102

EN 1677

Fed. Spec.

NACM Welded Steel Chain
Specifications

OSHA

	Color Color

	Black		Yellow
	Blue		Green

	Maximum Temperature Maximum Temperature

	Weight per Foot Weight per Foot

	Approximate Number of Links per Foot Approximate Number of Links per Foot

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Type Type


Link/Ring	Grab Hook

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About Sling Configurations and Capacity

Use this strong chain for binding loads, tie downs, and towing applications. It is stamped with the grade and manufacturer. When using fittings with chain, you must match the trade size and meet or exceed the chain’s grade.

Zinc-plated steel chain has good corrosion resistance. Galvanized steel chain has excellent corrosion resistance.

For technical drawings and 3-D models, click on a part number.

			Inside
Straight-Link Chain Trade Size	Metric Trade Size	Thick.	Wd.	Lg.	Cap., lbs.	Wt. per ft., lbs.	Approximate No. of Links per ft.	For Fitting Thick.	Max. Temp., ° F	For Use Outdoors	Lengths, ft.		Per Ft.
Unfinished Steel
5/16	8	0.31"	0.49"	1.30"	1,900	0.8	9	7/16"	400º	No	5, 10, 25, 50, 100, 200, 300	0000000	00000
Zinc-Plated Steel
5/16	8	0.31"	0.49"	1.30"	1,900	0.8	9	7/16"	400º	No	5, 10, 25, 50, 100, 200, 300	0000000	0000
Galvanized Steel
5/16	8	0.31"	0.49"	1.30"	1,900	0.8	9	7/16"	400º	Yes	5, 10, 25, 50, 100, 200, 300	0000000	0000
Green Powder-Coated Steel
5/16	8	0.33"	0.48"	1.28"	1,900	1	10	7/16"	200º	No	5, 10, 25, 50, 100, 200, 300	0000000	00000

High-Strength Grade 43 Chain—Not for Lifting

This chain is approximately 50% stronger than Grade 30 chain. Use it for binding loads, tie downs, and towing applications. It is stamped with the grade and manufacturer. When using fittings with chain, you must match the trade size and meet or exceed the chain’s grade.

Zinc-plated steel chain has good corrosion resistance. Galvanized steel chain has excellent corrosion resistance.

For technical drawings and 3-D models, click on a part number.

			Inside
Straight-Link Chain Trade Size	Metric Trade Size	Thick.	Wd.	Lg.	Cap., lbs.	Wt. per ft., lbs.	Approximate No. of Links per ft.	For Fitting Thick.	Max. Temp., ° F	For Use Outdoors	Lengths, ft.		Per Ft.
Unfinished Steel
5/16	8	0.32"	0.49"	1.15"	3,900	1	10	7/16"	400°	No	1, 2, 3, 4, 5, 10, 25, 50	0000000	00000
Zinc-Plated Steel
5/16	8	0.32"	0.49"	1.15"	3,900	1	10	7/16"	400°	No	1, 2, 3, 4, 5, 10, 25, 50	0000000	0000
Galvanized Steel
5/16	8	0.32"	0.49"	1.15"	3,900	1	10	7/16"	400°	Yes	1, 2, 3, 4, 5, 10, 25, 50	0000000	0000

Extra-High-Strength Grade 70 Chain—Not for Lifting

This chain is approximately 20% stronger than Grade 40/43 chain and 60% stronger than Grade 30 chain. Use it for binding loads, tie downs, and towing applications. It is stamped with the grade and manufacturer. When using fittings with chain, you must match the trade size and meet or exceed the chain’s grade.

For technical drawings and 3-D models, click on a part number.

			Inside
Straight-Link Chain Trade Size	Metric Trade Size	Thick.	Wd.	Lg.	Cap., lbs.	Wt. per ft., lbs.	Approximate No. of Links per ft.	For Fitting Thick.	Max. Temp., ° F	For Use Outdoors	Lengths, ft.		Per Ft.
Zinc Yellow-Chromate-Plated Steel
5/16	8	0.32"	0.49"	1.15"	4,700	1	10	7/16"	400°	No	1, 2, 3, 4, 5, 10, 25, 50	0000000	00000

High-Temperature Grade 63 Chain—Not For Lifting

With a maximum temperature of 500° F, this chain withstands higher temperatures than other steel chain. It is heat treated and stamped with the grade and manufacturer. When using fittings with chain, you must match the trade size and meet or exceed the chain’s grade.

			Inside
Straight-Link Chain Trade Size	Metric Trade Size	Thick.	Wd.	Lg.	Cap., lbs.	Wt. per ft., lbs.	Approximate No. of Links per ft.	For Fitting Thick.	Max. Temp., ° F	For Use Outdoors	Lengths, ft.		Per Ft.
Steel
5/16	8	0.33"	0.48"	1.01"	4,200	1.2	12	7/16"	500°	No	1, 2, 3, 4, 5, 10, 25, 50	0000000	00000

Corrosion-Resistant Chain—Not for Lifting

This chain withstands conditions that can deteriorate steel chain.

304 and 316 stainless steel chain are the most corrosion resistant. 316 stainless steel is more corrosion resistant than 304 stainless steel, so you can use it in food processing areas and environments where chemicals are used.

			Inside
Straight-Link Chain Trade Size	Metric Trade Size	Thick.	Wd.	Lg.	Cap., lbs.	Approximate No. of Links per ft.	For Fitting Thick.	Max. Temp., ° F	For Use Outdoors	Lengths, ft.		Per Ft.
304 Stainless Steel
5/16	8	0.32"	0.46"	0.94"	2,400	13	7/16"	750°	Yes	1, 2, 3, 4, 5, 10, 20, 25, 50	0000000	000000
316 Stainless Steel
5/16	8	0.32"	0.46"	0.94"	2,800	13	7/16"	750°	Yes	1, 2, 3, 4, 5, 10, 20, 25, 50	0000000	00000

Tangle-Resistant Grade 30 Chain—Not for Lifting

This is the strongest tangle-resistant chain we offer. Shorter links make it easier to coil and less likely to knot. It is heat treated and stamped with the grade and manufacturer. When using fittings with chain, you must match the trade size and meet or exceed the chain’s grade.

Galvanized steel chain has excellent corrosion resistance.

For technical drawings and 3-D models, click on a part number.

			Inside
Straight-Link Chain Trade Size	Metric Trade Size	Thick.	Wd.	Lg.	Cap., lbs.	Wt. per ft., lbs.	Approximate No. of Links per ft.	For Fitting Thick.	Max. Temp., ° F	For Use Outdoors	Lengths, ft.		Per Ft.
Unfinished Steel
5/16	8	0.34"	0.49"	0.99"	1,900	1.2	11	7/16"	400°	No	5, 10, 25, 50, 100, 200	0000000	00000
Galvanized Steel
5/16	8	0.34"	0.49"	0.99"	1,900	1.2	11	7/16"	400°	Yes	5, 10, 25, 50, 100, 200	0000000	0000

Cut-Resistant Round-Link Chain—Not for Lifting

Securely tie down items and lock up tools. These chains are case-hardened for cut and wear resistance. Made of zinc-plated steel, they have good corrosion resistance.

For technical drawings and 3-D models, click on a part number.

			Inside
Straight-Link Chain Trade Size	Metric Trade Size	Thick.	Wd.	Lg.	Approximate No. of Links per ft.	For Fitting Thick.	For Use Outdoors	Lengths, ft.		Per Ft.
Zinc-Plated Steel
5/16	8	0.31"	0.47"	1.27"	9	7/16"	No	2, 5, 10, 25, 50, 100	0000000	00000

General Purpose Grade 80 Chain—For Lifting

Strong and durable, use this chain for your lifting applications. It is heat treated and stamped with the grade and manufacturer. When using fittings with chain, you must match the trade size and meet or exceed the chain’s grade.

Zinc-plated steel chain has good corrosion resistance.

Warning: Never use to lift people or items over people.

For technical drawings and 3-D models, click on a part number.

			Inside
Straight-Link Chain Trade Size	Metric Trade Size	Thick.	Wd.	Lg.	Cap., lbs.	Wt. per ft., lbs.	Approximate No. of Links per ft.	For Fitting Thick.	Max. Temp., ° F	For Use Outdoors	Lengths, ft.		Per Ft.
Black Painted Steel
5/16	8	0.33"	0.48"	1.02"	4,500	1.1	11	7/16"	400°	No	1, 2, 3, 4, 5, 10, 25, 50	0000000	00000
Zinc-Plated Steel
5/16	8	0.31"	0.46"	0.94"	4,500	1.2	12	7/16"	400°	No	1, 2, 3, 4, 5, 10, 25, 50	0000000	00000

Wear Gauge

Gauge measures the maximum allowable wear tolerances on links of Grade 80 and Grade 100 steel chain, as required by OSHA. If the gauge can be inserted over any part of the link, the chain should be taken out of service.

For Grade 80 and Grade 100 Chain
For Straight-Link Chain Trade Size	For Manufacturer Model Number		Each
9/32, 3/8, 1/2, 5/8, 3/4, 7/8, 1	C8, C10	0000000	000000
9/32, 3/8, 1/2, 5/8, 3/4, 7/8, 1	L8, L10	00000000	00000
9/32, 3/8, 1/2, 5/8, 3/4, 7/8, 1	P8, P10, H29, KWB	00000000	00000

High-Strength Grade 100 Chain—For Lifting

This chain is approximately 25% stronger than Grade 80 chain. It's heat treated and stamped with the grade and manufacturer. When using fittings with chain, you must match the trade size and meet or exceed the chain’s grade.

Zinc-plated steel chain has good corrosion resistance.

Warning: Never use to lift people or items over people.

			Inside
Straight-Link Chain Trade Size	Metric Trade Size	Thick.	Wd.	Lg.	Cap., lbs.	Wt. per ft., lbs.	Approximate No. of Links per ft.	For Fitting Thick.	Max. Temp., ° F	For Use Outdoors	Lengths, ft.		Per Ft.
Unfinished Steel
5/16	8	0.32"	0.43"	0.95"	5,700	1	12	3/8"	400°	No	1, 2, 3, 4, 5, 10, 25, 50	0000000	00000
Black Zinc-Plated Steel
5/16	8	0.32"	0.43"	0.95"	5,700	1	12	3/8"	400°	No	1, 2, 3, 4, 5, 10, 25, 50	0000000	00000

Wear Gauge

For Grade 80 and Grade 100 Chain
For Straight-Link Chain Trade Size	For Manufacturer Model Number		Each
9/32, 3/8, 1/2, 5/8, 3/4, 7/8, 1	C8, C10	0000000	000000
9/32, 3/8, 1/2, 5/8, 3/4, 7/8, 1	L8, L10	00000000	00000
9/32, 3/8, 1/2, 5/8, 3/4, 7/8, 1	P8, P10, H29, KWB	00000000	00000
For Grade 100 Chain
9/32, 3/8, 1/2, 5/8, 3/4, 7/8, 1	PW, PWA	00000000	00000

Extra-High-Strength Grade 120 Chain—For Lifting

The strongest chain grade we offer, it’s approximately 20% stronger than Grade 100 chain and 50% stronger than Grade 80 chain. It is heat treated and stamped with the grade and manufacturer. The links are square, which helps spread wear evenly at the contact points. When using fittings with chain, you must match the trade size and meet or exceed the chain’s grade.

Warning: Never use to lift people or items over people.

For technical drawings and 3-D models, click on a part number.

			Inside
Straight-Link Chain Trade Size	Metric Trade Size	Thick.	Wd.	Lg.	Cap., lbs.	Wt. per ft., lbs.	Approximate No. of Links per ft.	For Fitting Thick.	Max. Temp., ° F	For Use Outdoors	Lengths, ft.		Per Ft.
Blue Powder-Coated Steel
5/16	8	0.32"	0.43"	0.98"	6,600	1.1	13	3/8"	400°	No	1, 2, 3, 4, 5, 10, 25, 50	000000	000000

Chain with Fittings on Both Ends

Bind, bundle, tow, and haul—this steel chain has hooks on each end for versatility.

Grade 70 chain, also known as transport chain, has a high strength-to-weight ratio.

D.O.T.—Department of Transportation.

Warning: Never use for lifting applications. See Chain—For Lifting.

			Inside
Straight-Link Chain Trade Size	Metric Trade Size	Thick.	Wd.	Lg.	Cap., lbs.	Wt. per ft., lbs.	Hook Opening Wd.	Fitting Type	Specifications Met		Each
14-ft. Lg.
Steel — Chain Grade 43
5/16	8	0.33"	0.48"	1.29"	3,900	1.1	7/16"	Grab Hook	D.O.T. 393.102	0000000	000000
Zinc-Plated Steel — Chain Grade 70
5/16	8	0.33"	0.48"	1.12"	4,700	1.2	7/16"	Grab Hook	D.O.T. 393.102	0000000	000000
20-ft. Lg.
Steel — Chain Grade 43
5/16	8	0.33"	0.48"	1.29"	3,900	1.1	7/16"	Grab Hook	D.O.T. 393.102	0000000	000000
Zinc-Plated Steel — Chain Grade 70
5/16	8	0.33"	0.48"	1.12"	4,700	1.2	7/16"	Grab Hook	D.O.T. 393.102	0000000	000000

Light Duty Hammer-Close Connecting Links—Not for Lifting

Also known as lap links or repair links. These links are an economical option to join chain links and attach fittings. Use a ball peen hammer to hammer them closed. They must be completely closed to perform at capacity. Never reuse links after they've been closed.

Zinc-plated steel connectors are mildly corrosion resistant.

For technical drawings and 3-D models, click on a part number.

Steel
For Straight-Link Chain Trade Size	Thick.	Inside Lg.	Inside Wd.	Capacity, lbs.	Pkg. Qty.		Pkg.
5/16	5/16"	1 1/2"	39/64"	700	5	0000000	000000
Zinc-Plated Steel
5/16	5/16"	1 1/2"	39/64"	700	5	0000000	00000

Riveted Hammer-Close Connecting Links—Not for Lifting

Strike the prongs with a ball peen hammer and they expand to hold the connecting link together. Never reuse links after they’ve been closed.

Galvanized steel links have a thick coating for corrosion resistance.

316 stainless steel links have excellent resistance to salt water and chemicals.

Steel
For Straight-Link Chain Trade Size	Thick.	Inside Lg.	Inside Wd.	Capacity, lbs.	Fabrication	Specifications Met		Each
5/16	5/16"	1"	1/2"	2,000	Forged	Fed. Spec. RR-C-271D	0000000	000000
Galvanized Steel
5/16	5/16"	1"	1/2"	2,000	Forged	Fed. Spec. RR-C-271D	0000000	00000
316 Stainless Steel
5/16	5/16"	1"	1/2"	2,000	Forged	__	0000000	00000

Medium Duty Hammer-Close Connecting Links—Not for Lifting

Drive the end through the eye using a ball peen hammer and then weld or flatten the extended end to close. Also known as cold shuts, these links are an economical option to join chain links and attach fittings. They must be completely closed to perform at capacity. Never reuse links after they've been closed.

Zinc-plated steel links are mildly corrosion resistant.

For technical drawings and 3-D models, click on a part number.

For Grade 30 Chain
For Straight-Link Chain Trade Size	Thick.	Inside Lg.	Inside Wd.	Capacity, lbs.	Pkg. Qty.		Pkg.
Steel
5/16	19/64"	1 3/8"	7/16"	1,200	10	00000000	000000
Zinc-Plated Steel
5/16	19/64"	1 3/8"	7/16"	1,200	10	00000000	00000

Links with Chain-Shortening Hooks—For Lifting

With One Hook

With Two Hooks

A pear-shaped link and hook for chain shortening allow you to create an adjustable-length chain sling. These links meet strict ASTM safety standards for lifting.

Note: Capacities for links with one hook are for vertical lifting only. Capacities for links with two hooks are based on two-leg sling assemblies.

For technical drawings and 3-D models, click on a part number.

For Grade 100 Chain
Number of Hooks	For Straight-Link Chain Trade Size	Thick.	Inside Lg.	Inside Wd.	Hook Opening Wd.	Clevis Inside Wd.	Capacity, lbs.	Fabrication	Specifications Met		Each
Yellow Powder-Coated Alloy Steel
1	5/16	23/32"	3 5/8"	2 3/8"	3/8"	3/8"	5,700	Forged	ASTM A952, EN 1677	0000000	000000
2	5/16	27/32"	3 29/32"	3"	3/8"	3/8"	9,900	Forged	ASTM A952, EN 1677	0000000	000000

Adjustable Chain Slings

Style A

Vertical

Adjust the chain length and number of legs without changing slings. The chain provides strength and ruggedness to withstand the harshest working conditions.

Style A slings include a tag that shows chain grade and size, length, and capacities in each configuration.

Note: Do not use slings at an angle less than 45°.

Warning: Never use to lift people or items over people.

Slings
			Hook			Eye										Replacement Latches
Style	Straight-Link Chain Trade Size	Vertical Capacity, lbs.	Opening Wd.	Usable Lg.	Wd.	Lg.	Wd.	Thick.	Max. Temp., °F	Specifications Met		3 ft. Lg.	6 ft. Lg.	10 ft. Lg.	14 ft. Lg.		Each
Grade 100 Painted Steel Chain
A	5/16	5,700	1 1/8"	3 3/4"	5/8"	3 3/4"	2 3/8"	3/4"	400°	OSHA Compliant 29 CFR 1910.184, ASME B30.9	00000000	0000000	0000000	0000000	0000000	0000000	000000