Safety-Pin Shackles | McMaster-Carr

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Pin Diameter

Pin Type

Weight Capacity

10,000 lb. to 19,999 lb.

20,000 lb. to 29,999 lb.

30,000 lb. to 39,999 lb.

40,000 lb. or greater

Material

Shackle Type

Application

Thickness

Inside Length

Inside Width

Finish

Safety Factor

Applied Load Direction

Side

Vertical

Straight-Link Chain Trade Size

Performance

Heavy Vibration Resistant

For Use With

Specifications Met

RoHS

REACH

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

For Web Width

Body Thickness

108 Products

Shackle Type

Anchor

Handle vertical and side loads without warping

62 products

D-Type

The best choice for lifting and towing with chain

37 products

Shackle Type

Flat

Keep web slings from folding or bunching

9 products

Application

For Lifting

Our strongest shackles all meet ASME requirements for lifting

96 products

Anchor Shackles for Lifting

Your go-to choice for connecting hooks, slings, and other rigging and lifting equipment. The rounded body on these shackles supports vertical or side loads without fatiguing or warping the shape. They meet ASME specifications for rigging and lifting, so they can hoist everything from steel beams to bulldozers. Look for the manufacturer's stamp to confirm the size and weight capacity. Also known as bow shackles.

Note: Capacities listed are for vertical lifting only. As the lift angle changes from vertical, the amount of weight the shackle can lift is significantly reduced.

Screw Pin—The most common shackle pin type. Although the pin easily connects and disconnects, it can come unscrewed or wear down over time, so it's best for temporary use.

Safety Cotter Pin—Both a threaded nut and cotter pin hold these shackles in place. Also known as bolt-type shackles, the pin won’t slide out with movement. This means you can use these shackles with vibrating equipment and for long-term rigging setups.

Black-Oxide Steel—The dark finish on these shackles resists occasional moisture.

Galvanized Steel—A thick coating protects these shackles in wet and outdoor environments better than black-oxide steel. However, they corrode when exposed to salt water and chemicals.

High-Strength Galvanized Alloy Steel—Stronger than galvanized steel with corrosion resistance in wet and outdoor environments.

Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant shackles stand up to moisture, salt water, and chemicals.

	Thk.	Opening Wd.	Pin Dia.	Inside Lg.	Inside Wd.	Wt. Cap., lb.	Specs. Met		Each
Screw Pin







				Black-Oxide Steel

				3/16"	3/8"	1/4"	7/8"	9/16"	665	ASME B30.26, Fed. Spec. RR-C-271	8494T11	00000


				1/4"	15/32"	5/16"	1 1/8"	3/4"	1,000	ASME B30.26, Fed. Spec. RR-C-271	8494T12	0000
				5/16"	17/32"	3/8"	1 1/4"	15/16"	1,500	ASME B30.26, Fed. Spec. RR-C-271	8494T13	0000
				3/8"	21/32"	7/16"	1 7/16"	1 1/8"	2,000	ASME B30.26, Fed. Spec. RR-C-271	8494T14	00000
				7/16"	23/32"	1/2"	1 11/16"	1 5/16"	3,000	ASME B30.26, Fed. Spec. RR-C-271	8494T15	00000
				1/2"	13/16"	5/8"	1 15/16"	1 1/2"	4,000	ASME B30.26, Fed. Spec. RR-C-271	8494T16	00000
				5/8"	1 1/16"	3/4"	2 1/2"	1 7/8"	6,500	ASME B30.26, Fed. Spec. RR-C-271	8494T17	00000
				3/4"	1 1/4"	7/8"	3"	2"	9,500	ASME B30.26, Fed. Spec. RR-C-271	8494T18	00000
				7/8"	1 7/16"	1"	3 1/4"	2 5/8"	13,000	ASME B30.26, Fed. Spec. RR-C-271	8494T19	00000
				1"	1 11/16"	1 1/8"	3 3/4"	2 3/4"	17,000	ASME B30.26, Fed. Spec. RR-C-271	8494T21	00000


				Safety Cotter Pin







								Black-Oxide Steel

								1/4"	15/32"	5/16"	1 1/8"	3/4"	1,000	ASME B30.26, Fed. Spec. RR-C-271	8494T26	00000


								5/16"	17/32"	3/8"	1 1/4"	15/16"	1,500	ASME B30.26, Fed. Spec. RR-C-271	8494T27	00000
								3/8"	21/32"	7/16"	1 7/16"	1 1/8"	2,000	ASME B30.26, Fed. Spec. RR-C-271	8494T28	00000
								7/16"	23/32"	1/2"	1 11/16"	1 5/16"	3,000	ASME B30.26, Fed. Spec. RR-C-271	8494T29	00000
								1/2"	13/16"	5/8"	1 15/16"	1 1/2"	4,000	ASME B30.26, Fed. Spec. RR-C-271	8494T31	00000
								5/8"	1 1/16"	3/4"	2 1/2"	1 7/8"	6,500	ASME B30.26, Fed. Spec. RR-C-271	8494T32	00000
								3/4"	1 1/4"	7/8"	3"	2"	9,500	ASME B30.26, Fed. Spec. RR-C-271	8494T33	00000
								7/8"	1 7/16"	1"	3 1/4"	2 5/8"	13,000	ASME B30.26, Fed. Spec. RR-C-271	8494T34	00000
								1"	1 11/16"	1 1/8"	3 3/4"	2 3/4"	17,000	ASME B30.26, Fed. Spec. RR-C-271	8494T35	000000




										Galvanized Steel

										3/16"	3/8"	1/4"	29/32"	5/8"	700	ASME B30.26, Fed. Spec. RR-C-271	3555T45	00000


										1/4"	1/2"	5/16"	1 5/32"	25/32"	1,100	ASME B30.26, Fed. Spec. RR-C-271	3555T46	00000
										5/16"	17/32"	13/32"	1 1/4"	27/32"	1,600	ASME B30.26, Fed. Spec. RR-C-271	3555T47	00000
										3/8"	11/16"	15/32"	1 15/32"	1 1/32"	2,200	ASME B30.26, Fed. Spec. RR-C-271	3555T48	00000
										7/16"	3/4"	1/2"	1 23/32"	1 3/16"	3,300	ASME B30.26, Fed. Spec. RR-C-271	3555T49	00000
										1/2"	13/16"	21/32"	1 29/32"	1 5/16"	4,400	ASME B30.26, Fed. Spec. RR-C-271	3555T51	00000
										5/8"	1 1/16"	25/32"	2 13/32"	1 23/32"	7,100	ASME B30.26, Fed. Spec. RR-C-271	3555T52	00000
										3/4"	1 1/4"	29/32"	2 13/16"	2"	10,400	ASME B30.26, Fed. Spec. RR-C-271	3555T53	00000
										7/8"	1 15/32"	1 1/32"	3 5/16"	2 9/32"	14,300	ASME B30.26, Fed. Spec. RR-C-271	3555T54	000000
										1"	1 23/32"	1 5/32"	3 3/4"	2 23/32"	18,700	ASME B30.26, Fed. Spec. RR-C-271	3555T55	000000
										1 1/8"	1 13/16"	1 1/4"	4 1/4"	2 15/16"	20,900	ASME B30.26, Fed. Spec. RR-C-271	3555T56	000000


1 1/4"	2 1/32"									1 13/32"	4 21/32"	2 29/32"	24,000	ASME B30.26	3555T57	000000
1 3/8"	2 1/4"									1 1/2"	5 7/32"	3 1/4"	27,000	ASME B30.26	3555T78	000000
1 1/2"	2 7/16"									1 21/32"	5 21/32"	3 1/2"	34,000	ASME B30.26	3555T59	000000
1 3/4"	2 31/32"									2"	7"	4 3/4"	50,000	ASME B30.26	3555T61	000000
2"	3 9/32"	2 1/4"								7 15/32"	5 1/2"	70,000	ASME B30.26	3555T62	000000




		High-Strength Galvanized Alloy Steel

		1/2"	27/32"							21/32"	1 31/32"	1 13/32"	6,600	ASME B30.26	8966T51	00000


		5/8"	1 1/16"							3/4"	2 7/16"	1 21/32"	10,000	ASME B30.26	8966T52	00000
		3/4"	1 9/32"							29/32"	2 27/32"	1 29/32"	14,000	ASME B30.26	8966T53	000000
		7/8"	1 15/32"							1"	3 5/16"	2 1/16"	19,000	ASME B30.26	8966T54	000000
		1"	1 3/4"							1 5/32"	3 3/4"	2 17/32"	25,000	ASME B30.26	8966T55	000000
		1 1/8"	1 27/32"							1 1/4"	4"	2 11/16"	30,000	ASME B30.26	8966T101	000000
		1 1/4"	2 1/32"							1 13/32"	4 21/32"	2 29/32"	36,000	ASME B30.26	8966T76	000000
		1 1/2"	2 7/16"							1 21/32"	5 21/32"	3 1/2"	60,000	ASME B30.26	8966T57	000000
		1 5/8"	2 21/32"							1 3/4"	6 1/8"	4 1/8"	70,000	ASME B30.26	8966T21	000000
		1 3/4"	2 31/32"							2"	7"	4 3/4"	80,000	ASME B30.26	8966T12	000000
		2"	3 9/32"							2 1/4"	7 15/32"	5 1/2"	100,000	ASME B30.26	8966T14	00000000




				Highly Corrosion-Resistant 316 Stainless Steel

				1/4"	1/2"	5/16"				1 1/8"	3/4"	1,000	ASME B30.26, Fed. Spec. RR-C-271	3860T21	00000


				5/16"	17/32"	3/8"	1 7/32"			13/16"	1,300	ASME B30.26, Fed. Spec. RR-C-271	3860T22	00000
				3/8"	11/16"	7/16"	1 7/16"			31/32"	1,500	ASME B30.26, Fed. Spec. RR-C-271	3860T23	00000
				7/16"	3/4"	1/2"	1 25/32"			1 1/16"	2,000	ASME B30.26, Fed. Spec. RR-C-271	3860T24	00000
				1/2"	27/32"	5/8"	1 27/32"			1 7/32"	3,000	ASME B30.26, Fed. Spec. RR-C-271	3860T25	00000
				5/8"	1 1/32"	3/4"	2 7/16"			1 1/2"	4,000	ASME B30.26, Fed. Spec. RR-C-271	3860T26	000000
				3/4"	1 1/4"	7/8"	2 27/32"			1 3/4"	6,000	ASME B30.26, Fed. Spec. RR-C-271	3860T27	000000
				7/8"	1 1/2"	1"	3 5/16"			2"	8,000	ASME B30.26, Fed. Spec. RR-C-271	3860T28	000000
				1"	1 23/32"	1 1/8"	3 13/16"			2 5/16"	10,000	ASME B30.26, Fed. Spec. RR-C-271	3860T29	000000
				1 1/4"	2 1/32"	1 3/8"	4 11/16"			3 5/16"	14,000	ASME B30.26, Fed. Spec. RR-C-271	3860T31	000000

D-Type Shackles for Lifting

Safety Cotter Pin

The best choice for lifting with chain. The bow and pin are equally wide to keep chain links from sliding or moving and support heavier vertical loads than anchor shackles. However, they're rated for vertical lifting only, as side loading might deform the bow. All meet ASME specifications for use with rigging and lifting equipment. Look for the manufacturer's stamp to confirm the size and weight capacity. Also known as chain shackles.

Note: Capacities listed are for vertical lifting only. As the lift angle changes from vertical, the amount of weight the shackle can lift is significantly reduced.

Galvanized Steel—A thick coating protects these shackles in wet and outdoor environments better than black-oxide steel. However, they corrode when exposed to salt water and chemicals.

High-Strength Galvanized Alloy Steel—Stronger than galvanized steel with corrosion resistance in wet and outdoor environments.

Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant shackles stand up to moisture, salt water, and chemicals.

	Inside Lg.	Inside Wd.	Wt. Cap., lb.	Specs. Met		Each
Safety Cotter Pin







	Galvanized Steel

	1/4"	1/2"	5/16"	15/16"	7/16"	1,100	ASME B30.26, Fed. Spec. RR-C-271	3556T26	000000


	5/16"	17/32"	13/32"	1 3/32"	1/2"	1,600	ASME B30.26, Fed. Spec. RR-C-271	3556T27	00000
	3/8"	11/16"	15/32"	1 9/32"	5/8"	2,200	ASME B30.26, Fed. Spec. RR-C-271	3556T28	00000
	7/16"	3/4"	1/2"	1 1/2"	3/4"	3,300	ASME B30.26, Fed. Spec. RR-C-271	3556T29	00000
	1/2"	13/16"	21/32"	1 11/16"	13/16"	4,400	ASME B30.26, Fed. Spec. RR-C-271	3556T14	00000
	5/8"	1 1/16"	25/32"	2 1/16"	1 1/16"	7,100	ASME B30.26, Fed. Spec. RR-C-271	3556T15	00000
	3/4"	1 1/4"	29/32"	2 13/32"	1 1/4"	10,400	ASME B30.26, Fed. Spec. RR-C-271	3556T16	00000
	7/8"	1 15/32"	1 1/32"	2 7/8"	1 7/16"	14,300	ASME B30.26, Fed. Spec. RR-C-271	3556T17	000000
	1"	1 23/32"	1 5/32"	3 1/4"	1 11/16"	18,700	ASME B30.26, Fed. Spec. RR-C-271	3556T18	000000




			High-Strength Galvanized Alloy Steel

			1/4"	15/32"	5/16"	7/8"	15/32"	1,500	ASME B30.26	3556T38	00000


			5/16"	17/32"	13/32"	1"	17/32"	2,000	ASME B30.26	3556T39	00000
			3/8"	21/32"	15/32"	1 1/4"	21/32"	3,000	ASME B30.26	3556T41	00000
			1/2"	13/16"	21/32"	1 11/16"	13/16"	6,000	ASME B30.26	3556T42	00000
			5/8"	1 1/16"	3/4"	2"	1 1/16"	9,000	ASME B30.26	3556T43	00000
			3/4"	1 1/4"	29/32"	2 3/8"	1 1/4"	13,000	ASME B30.26	3556T44	00000
			7/8"	1 7/16"	1"	2 7/8"	1 7/16"	17,000	ASME B30.26	3556T45	000000
			1 1/8"	1 13/16"	1 1/4"	3 9/16"	1 13/16"	24,000	ASME B30.26	3556T33	000000
			1 1/4"	2 1/32"	1 13/32"	3 31/32"	2 1/32"	28,000	ASME B30.26	3556T34	000000
			1 3/8"	2 1/4"	1 1/2"	4 15/32"	2 1/4"	34,000	ASME B30.26	3556T35	000000
			1 1/2"	2 13/32"	1 21/32"	4 29/32"	2 13/32"	40,000	ASME B30.26	3556T36	000000


			1 3/4"	2 29/32"	2"	5 3/4"	2 29/32"	60,000	ASME B30.26	3556T37	000000
			2"	3 9/32"	2 1/4"	6 3/4"	3 9/32"	70,000	ASME B30.26	3556T25	000000




					Highly Corrosion-Resistant 316 Stainless Steel

					3/8"	21/32"	15/32"	1 1/4"	21/32"	1,500	ASME B30.26, Fed. Spec. RR-C-271	35895T123	00000


					1/2"	13/16"	21/32"	1 19/32"	13/16"	3,000	ASME B30.26, Fed. Spec. RR-C-271	35895T124	00000
					5/8"	1 1/16"	3/4"	1 31/32"	1 1/16"	4,000	ASME B30.26, Fed. Spec. RR-C-271	35895T125	000000
					3/4"	1 7/32"	29/32"	2 13/32"	1 7/32"	6,000	ASME B30.26, Fed. Spec. RR-C-271	35895T126	000000
					7/8"	1 15/32"	1"	2 29/32"	1 15/32"	8,000	ASME B30.26, Fed. Spec. RR-C-271	35895T127	000000
					1"	1 11/16"	1 5/32"	3 7/32"	1 11/16"	10,000	ASME B30.26, Fed. Spec. RR-C-271	35895T128	000000

Anchor Shackles

Safety Cotter Pin

The most common choice for connecting slings, hooks, and more. The bow on these shackles is wider than the pin to support loads from multiple directions and accommodate multiple connectors. They’re often used to tie down or secure loads for transport or storage. Also known as bow shackles.

Warning: Not for overhead lifting.

Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant shackles stand up to moisture, salt water, and chemicals.

	Inside Lg.	Inside Wd.	Wt. Cap., lb.		Each
Safety Cotter Pin







	Highly Corrosion-Resistant 316 Stainless Steel

	1/4"	1/2"	1/4"	29/32"	13/16"	750	3992N11	00000


	5/16"	21/32"	5/16"	1 1/4"	1 3/32"	1,200	3992N12	00000
	3/8"	13/16"	13/32"	1 9/16"	1 1/4"	2,000	3992N13	00000
	15/32"	31/32"	1/2"	1 15/16"	1 1/2"	3,000	3992N14	00000
	5/8"	1 9/32"	5/8"	2 15/32"	2 3/16"	4,000	3992N15	00000
	3/4"	1 19/32"	25/32"	3 3/32"	2 17/32"	5,500	3992N16	00000

Dual-Connect Shackles for Lifting

Flush

Hammer-Set-Dowel

Pin/Safety

Cotter Pin

Attach chain to pins on both ends of these shackles—no extra hardware needed. Connect them to two lengths of chain or use them as a stable, inline connection in a lifting system. All meet ASME specifications for use with rigging and lifting equipment.

Note: Capacity limits are based on loads applied in line with a straight length of rope or chain. Test all assemblies for required strength before use.

Hammer-Set-Dowel Pin—Hammer in two dowel pins to hold the pin in place. These shackles stay put even under heavy, shifting loads and in long-term rigging setups. They also won't snag on clothing or other nearby material.

Safety Cotter Pin—Both a threaded nut and cotter pin hold these shackles in place. Also known as bolt-type shackles, they won’t slide out with movement. This means you can use these shackles with vibrating equipment and for long-term rigging setups.

High-Strength Powder-Coated Alloy Steel—The powder-coating won't chip off as easily as paint. These shackles combine the strength of alloy steel with corrosion resistance in wet and outdoor environments.

	Top Opening			Bottom Opening
	Opening Wd.	Pin Dia.	Inside Lg.	Opening Wd.	Pin Dia.	Inside Lg,	Wt. Cap., lb.	Specs. Met		Each
Flush Hammer-Set-Dowel Pin/Safety Cotter Pin







				High-Strength Powder-Coated Alloy Steel

				13/16"	1 3/32"	1 15/32"	15/32"	15/32"	15/32"	7,100	ASME B30.26	3532T26	0000000


				1 1/16"	1 1/4"	1 15/16"	9/16"	5/8"	19/32"	12,000	ASME B30.26	3532T27	000000
				1 11/32"	1 13/32"	2 1/4"	11/16"	3/4"	25/32"	18,100	ASME B30.26	3532T28	000000

D-Type Shackles

Safety Cotter Pin

Pair these shackles with chain to pull and tow loads. The narrow bow prevents chain links from sliding or moving, but they're rated for inline tension only—they can’t handle pulling or tension to the side. Also known as chain shackles.

Warning: Not for overhead lifting.

Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant shackles stand up to moisture, salt water, and chemicals.

	Inside Lg.	Inside Wd.	Wt. Cap., lb.		Each
Safety Cotter Pin







	Highly Corrosion-Resistant 316 Stainless Steel

	1/4"	1/2"	1/4"	13/16"	1/2"	750	4031N11	00000


	5/16"	21/32"	5/16"	1 3/32"	21/32"	1,000	4031N12	0000
	3/8"	13/16"	13/32"	1 11/32"	13/16"	2,000	4031N13	00000
	15/32"	31/32"	1/2"	1 5/8"	31/32"	3,000	4031N14	00000
	5/8"	1 9/32"	5/8"	2 3/16"	1 9/32"	4,000	4031N15	00000
	3/4"	1 1/2"	25/32"	2 3/4"	1 1/2"	5,500	4031N16	00000

Flat Shackles for Lifting

Safety Cotter Pin

Lift with web slings. The wide, flat bow on these shackles prevents your sling from folding or bunching to keep loads distributed equally. All meet ASME specifications for rigging and lifting equipment. Look for the manufacturer's stamp to confirm the size and weight capacity. Also known as webbing shackles.

Note: Capacities listed are for vertical lifting only. As the lift angle changes from vertical, the amount of weight the shackle can lift is significantly reduced.

High-Strength Painted Alloy Steel—The paint provides some corrosion resistance, but can chip or wear away over time.

High-Strength Galvanized Alloy Steel—Stronger than galvanized steel with corrosion resistance in wet and outdoor environments.

	Pin Dia.	Inside Lg.	Inside Wd.	Wt. Cap., lb.	Specs. Met		Each
Safety Cotter Pin







	High-Strength Painted Alloy Steel

	1"	9/16"	1 1/16"	3/4"	1 1/2"	1 13/32"	6,500	ASME B30.26	35505T84	000000


	1 1/2"	3/4"	1 1/4"	29/32"	1 29/32"	1 3/4"	13,000	ASME B30.26	35505T85	00000
	2"	7/8"	1 13/32"	1"	2 13/16"	2 1/4"	17,500	ASME B30.26	35505T86	000000
	3"	1 5/16"	1 5/8"	1 1/4"	3 1/16"	3 1/4"	25,000	ASME B30.26	35505T87	000000
	4"	1 3/8"	2 1/8"	1 1/2"	5 1/4"	4 1/2"	41,000	ASME B30.26	35505T88	000000
	5"	1 3/4"	2 1/2"	2"	6 11/32"	5 1/2"	70,000	ASME B30.26	35505T89	000000




			High-Strength Galvanized Alloy Steel

			2"	11/16"	1 1/4"	29/32"	3 17/32"	2 1/2"	15,400	ASME B30.26	4043N11	000000


			3"	15/16"	1 11/16"	1 5/32"	4 5/8"	3 1/4"	27,500	ASME B30.26	4043N12	000000
			3 1/2"	1 7/32"	2 1/32"	1 13/32"	5 13/16"	4"	39,600	ASME B30.26	4043N13	000000