Double Eye Bolts | McMaster-Carr

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114 Products

Eye-to-Eye Turnbuckles—Not for Lifting

Note: Capacities listed are for straight or in-line pull only.

Forged Galvanized Steel Body with Forged Galvanized Steel Fittings

Forged bodies and components are stronger than cast and wire drawn bodies and components.

Galvanized steel is mildly corrosion resistant.

Oval Eye—Oval eyes provide more room to attach connectors.

Turnbuckles											Jam Nuts
Wt. Cap., lb.	Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Eye Inside Lg.	Thread Size	Specs. Met		Each		Each



	500	8"	4"	12"	Round	1/2"	—	1/4"-20	ASTM F1145 Type 1	0000000	000000	00000000	00000


	800	9"	4 1/2"	13 1/2"	Round	5/8"	—	5/16"-18	ASTM F1145 Type 1	0000000	00000	00000000	0000
	1,200	11 1/2"	6"	17 1/2"	Round	3/4"	—	3/8"-16	ASTM F1145 Type 1	0000000	00000	00000000	0000
	2,200	13"	6"	19"	Round	1"	—	1/2"-13	ASTM F1145 Type 1	0000000	00000	00000000	0000
	2,200	16"	9"	25"	Round	1"	—	1/2"-13	ASTM F1145 Type 1	0000000	00000	00000000	0000
	2,200	19"	12"	31"	Round	1"	—	1/2"-13	ASTM F1145 Type 1	0000000	00000	00000000	0000
	3,500	13 1/2"	6"	19 1/2"	Round	1 1/4"	—	5/8"-11	ASTM F1145 Type 1	0000000	00000	00000000	0000
	3,500	17"	9"	26"	Round	1 1/4"	—	5/8"-11	ASTM F1145 Type 1	0000000	00000	00000000	0000
	3,500	20 1/2"	12"	32 1/2"	Round	1 1/4"	—	5/8"-11	ASTM F1145 Type 1	0000000	00000	00000000	0000
	5,200	14 3/4"	6"	20 3/4"	Round	1 1/2"	—	3/4"-10	ASTM F1145 Type 1	0000000	00000	00000000	0000
	5,200	18"	9"	27"	Round	1 1/2"	—	3/4"-10	ASTM F1145 Type 1	0000000	00000	00000000	0000


	5,200	21 3/4"	12"	33 3/4"	Round	1 1/2"	—	3/4"-10	ASTM F1145 Type 1	0000000	00000	00000000	0000
	5,200	27 3/4"	18"	45 3/4"	Round	1 1/2"	—	3/4"-10	ASTM F1145 Type 1	0000000	000000	00000000	0000
	7,200	19"	6"	25"	Oval	1 1/4"	2 3/8"	7/8"-9	ASTM F1145 Type 1	00000000	00000	00000000	00000
	7,200	22 1/2"	12"	34 1/2"	Round	1 3/4"	—	7/8"-9	ASTM F1145 Type 1	0000000	000000	00000000	00000
	7,200	30 13/16"	18"	50 9/16"	Oval	1 1/4"	2 3/8"	7/8"-9	ASTM F1145 Type 1	0000000	000000	00000000	00000
	10,000	19 3/4"	6"	23"	Round	2"	—	1"-8	ASTM F1145 Type 1	0000000	000000	00000000	00000
	10,000	25"	12"	37"	Round	2"	—	1"-8	ASTM F1145 Type 1	0000000	000000	00000000	00000
	10,000	31"	18"	49"	Round	2"	—	1"-8	ASTM F1145 Type 1	0000000	000000	00000000	00000

Cast Zinc Body with Zinc-Plated Steel Fittings

Zinc-plated steel is mildly corrosion resistant.

Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Thread Size		Each



Not Rated	3 1/2"	1 1/4"	4 3/4"	Round	5/16"	5/32"-32	0000000	00000


Not Rated	4 1/2"	1 5/8"	6 1/8"	Round	5/16"	3/16"-24	0000000	0000
Not Rated	6"	2 3/8"	8 3/8"	Round	7/16"	1/4"-20	0000000	0000
Not Rated	6 3/4"	2 3/4"	9 1/2"	Round	9/16"	5/16"-18	0000000	0000
Not Rated	7 3/4"	3"	10 3/4"	Round	5/8"	3/8"-16	0000000	0000

Cast Aluminum Body with Zinc-Plated Steel Fittings

Aluminum is lightweight and has good corrosion resistance.

Zinc-plated steel is mildly corrosion resistant.

Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Thread Size		Each



30	3 1/2"	1 1/4"	4 3/4"	Round	1/4"	8-32	0000000	00000


30	4"	1 1/2"	5 1/2"	Round	5/16"	10-24	0000000	0000
50	4 1/2"	1 7/8"	6 3/8"	Round	3/8"	12-24	0000000	0000
60	5 1/2"	2 1/8"	7 5/8"	Round	7/16"	1/4"-20	0000000	0000
90	6 3/4"	2 1/2"	9 1/4"	Round	9/16"	5/16"-18	0000000	0000
100	7 1/2"	3"	10 1/2"	Round	11/16"	3/8"-16	0000000	0000

Cast Aluminum Body with 18-8 Stainless Steel Fittings

Aluminum is lightweight and has good corrosion resistance.

18-8 stainless steel has good corrosion resistance.

Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Thread Size		Each



30	3 1/2"	1 1/4"	4 3/4"	Round	1/4"	8-32	00000000	00000


30	4"	1 1/2"	5 1/2"	Round	5/16"	10-24	00000000	0000
50	4 1/2"	1 7/8"	6 3/8"	Round	3/8"	12-24	00000000	0000
60	5 1/2"	2 1/8"	7 5/8"	Round	7/16"	1/4"-20	00000000	00000
90	6 3/4"	2 1/2"	9 1/4"	Round	9/16"	5/16"-18	00000000	00000
100	7 1/2"	3"	10 1/2"	Round	11/16"	3/8"-16	00000000	00000

Forged 316 Stainless Steel Body with 316 Stainless Steel Fittings

Forged bodies and components are stronger than cast and wire drawn bodies and components.

316 stainless steel is the most corrosion resistant and has excellent resistance to chemicals and salt water.

Oval Eye—Oval eyes provide more room to attach connectors.

Turnbuckles											Right-Hand Jam Nuts		Left-Hand Jam Nuts
Wt. Cap., lb.	Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Eye Inside Lg.	Thread Size	Specs. Met		Each		Each		Each



	500	8"	4"	12"	Oval	5/16"	3/4"	1/4"-20	ASTM F1145 Type 1	0000000	000000	00000000	00000	00000000	00000


	800	9 1/4"	4 1/2"	13 3/4"	Oval	7/16"	15/16"	5/16"-18	ASTM F1145 Type 1	0000000	00000	00000000	0000	00000000	0000
	1,200	11 1/2"	6"	17 1/2"	Oval	1/2"	1 1/8"	3/8"-16	ASTM F1145 Type 1	0000000	00000	00000000	0000	00000000	0000
	2,200	13"	6"	19"	Oval	3/4"	1 7/16"	1/2"-13	ASTM F1145 Type 1	0000000	000000	00000000	0000	00000000	0000
	3,500	14 1/2"	6"	20 1/2"	Oval	7/8"	1 3/4"	5/8"-11	ASTM F1145 Type 1	0000000	000000	00000000	0000	00000000	0000
	5,200	16 1/4"	6"	22 1/4"	Oval	1"	2 1/16"	3/4"-10	ASTM F1145 Type 1	0000000	000000	00000000	0000	00000000	0000

Cast 316 Stainless Steel Body with 316 Stainless Steel Fittings

316 stainless steel is the most corrosion resistant and has excellent resistance to chemicals and salt water.

Turnbuckles									Right-Hand Jam Nuts		Left-Hand Jam Nuts
Wt. Cap., lb.	Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Thread Size		Each		Each		Each



	300	5 1/2"	2 1/2"	8"	Round	3/8"	10-24	00000000	000000	00000000	00000	0000000	00000


	400	6 1/2"	3"	9 1/2"	Round	7/16"	1/4"-20	00000000	00000	00000000	0000	00000000	0000
	800	8 1/4"	4"	12 1/4"	Round	1/2"	5/16"-18	00000000	00000	00000000	0000	00000000	0000
	1,200	11"	6"	17 1/2"	Round	5/8"	3/8"-16	00000000	00000	00000000	0000	00000000	0000
	2,200	12"	6"	18"	Round	3/4"	1/2"-13	00000000	00000	00000000	0000	00000000	0000
	2,800	15 1/2"	8"	23 1/2"	Round	7/8"	5/8"-11	00000000	000000	00000000	0000	00000000	0000
	3,500	19"	10"	29"	Round	1 1/8"	3/4"-10	000000000	000000	00000000	0000	00000000	0000

Eye-to-Eye Swivels—Not for Lifting

Rotating for easy positioning before a load is applied, these minimize twisting and knotting of rope and chain.

Galvanized Steel—Galvanized steel swivels have a thick coating for corrosion resistance.

316 Stainless Steel—316 stainless steel swivels have excellent resistance to salt water and chemicals. They’re more corrosion resistant than hot-dipped galvanized steel swivels.

		Eye
	Lg.	Thk.	Inside Lg. (A)	Inside Lg. (B)	ID	Wt. Cap., lb.	Fabrication	Specs. Met		Each
Galvanized Steel



		3"	1/4"	3/4"	1"	3/4"	800	Forged	—	00000000	000000


		3 5/8"	5/16"	3/4"	1 1/4"	1"	1,200	Forged	Fed. Spec. RR-C-271	0000000	00000
		4 5/16"	3/8"	7/8"	1 1/2"	1 1/4"	2,200	Forged	Fed. Spec. RR-C-271	0000000	00000
		5 3/8"	1/2"	1 3/16"	2"	1 1/2"	3,600	Forged	Fed. Spec. RR-C-271	0000000	00000
		6 5/8"	5/8"	1 1/2"	2 3/8"	1 3/4"	5,200	Forged	Fed. Spec. RR-C-271	0000000	00000
		7 3/8"	3/4"	1 5/8"	2 5/8"	2"	7,000	Forged	Fed. Spec. RR-C-271	0000000	000000


		316 Stainless Steel



				1 5/8"	3/16"	9/16"	9/16"	1/2"	300	Cast	—	0000000	00000


				2 1/8"	1/4"	5/8"	5/8"	9/16"	600	Cast	—	0000000	00000
				2 15/16"	5/16"	7/8"	7/8"	3/4"	1,000	Cast	—	0000000	00000
				3 3/4"	3/8"	7/8"	7/8"	15/16"	1,900	Cast	—	0000000	00000
				4 15/16"	1/2"	1 3/8"	1 3/8"	1 5/16"	2,700	Cast	—	0000000	00000
				6 1/16"	5/8"	1 3/4"	1 3/4"	1 1/2"	4,600	Cast	—	0000000	00000

Eye-to-Eye Ball Bearing Swivels—For Lifting

Use in critical applications to adjust the position of a fitting or an object under load and minimize twisting and knotting. The bearings are permanently lubricated and sealed to keep out debris.

Note: Swivels are for vertical lifting only.

		Eye
	Lg.	Thk.	ID	Wt. Cap., lb.	Specs. Met		Each
Alloy Steel



		3 5/16"	1/4"	1/4"	1,000	ASME B30.26	000000000	0000000


		4 9/16"	5/16"	3/8"	1,500	ASME B30.26	000000000	000000
		5 9/16"	1/2"	5/8"	3,000	ASME B30.26	000000000	000000
		7 1/8"	3/4"	7/8"	6,000	ASME B30.26	000000000	000000
		10 1/2"	1"	1 1/4"	10,000	ASME B30.26	000000000	000000

Closed-Body Eye-to-Eye Turnbuckles—Not for Lifting

The closed body protects threads from damage and debris and has a slim profile to fit in tight spaces.

Note: Capacities listed are for straight or in-line pull only.

Forged Steel Body with Galvanized Steel Fittings

Forged bodies and components are stronger than cast and wire drawn bodies and components.

Galvanized steel is mildly corrosion resistant.

Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Thread Size	Features		Each



1,000	8"	3"	11"	Round	3/8"	1/4"-28	Jam Nuts	0000000	000000


1,600	9"	3 3/4"	12 3/4"	Round	1/2"	5/16"-24	Jam Nuts	0000000	00000
2,800	10"	4 1/4"	14 1/4"	Round	5/8"	3/8"-24	Jam Nuts	0000000	00000

Forged Steel Body with Forged Galvanized Steel Fittings

Forged bodies and components are stronger than cast and wire drawn bodies and components.

Galvanized steel is mildly corrosion resistant.

Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Thread Size	Features		Each



5,900	14"	5"	19"	Round	7/8"	5/8"-18	Jam Nuts	0000000	000000

Extruded Aluminum Body with Zinc-Plated Steel Fittings

Aluminum is lightweight and has good corrosion resistance.

Zinc-plated steel is mildly corrosion resistant.

Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Thread Size		Each



30	3 1/2"	1 1/4"	4 3/4"	Round	1/4"	8-32	000000000	00000


40	4 1/4"	1 11/16"	5 15/16"	Round	1/4"	10-24	000000000	0000
50	4 3/4"	1 15/16"	6 11/16"	Round	5/16"	12-24	000000000	0000
90	5 1/2"	2 1/8"	7 5/8"	Round	3/8"	1/4"-20	000000000	0000
100	6 1/2"	2 9/16"	9 1/16"	Round	1/2"	5/16"-18	000000000	0000
200	7 1/2"	3 1/8"	10 5/8"	Round	5/8"	3/8"-16	000000000	0000

Cast 316 Stainless Steel Body with 316 Stainless Steel Fittings

316 stainless steel has good corrosion resistance.

Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Thread Size	Features		Each



1,200	11 1/2"	6 1/4"	17 3/4"	Round	1/2"	5/16"-18	Jam Nuts	0000000	000000


2,200	12"	6 1/4"	18 1/4"	Round	5/8"	3/8"-16	Jam Nuts	0000000	00000

316 Stainless Steel Body with 316 Stainless Steel Fittings

316 stainless steel has good corrosion resistance.

Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Thread Size	Features		Each



400	6"	2 1/4"	8 1/4"	Round	5/16"	10-32	Jam Nuts	0000000	000000


1,000	7 1/2"	3 1/4"	10 3/4"	Round	3/8"	1/4"-28	Jam Nuts	0000000	00000
1,600	8 1/2"	4 1/8"	12 5/8"	Round	1/2"	5/16"-24	Jam Nuts	0000000	00000
2,800	9 5/8"	4 3/8"	14"	Round	5/8"	3/8"-24	Jam Nuts	0000000	00000
4,200	12 1/2"	3"	15 1/2"	Round	3/4"	1/2"-20	Jam Nuts	0000000	000000
5,900	15"	5 3/4"	20 3/4"	Round	7/8"	5/8"-18	Jam Nuts	0000000	000000

Eye-to-Eye Turnbuckles—For Lifting

Made of galvanized steel, these turnbuckles have a thick coating for mild corrosion resistance.

Note: Capacities listed are for straight or in-line pull only.

Forged Galvanized Steel Body with Forged Galvanized Steel Fittings

Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Eye Inside Lg.	Thread Size	Specs. Met		Each



800	10"	4 1/2"	14 1/2"	Oval	7/16"	15/16"	5/16"-18	ASME B30.26, ASTM F1145 Type 1	0000000	000000


1,200	12 1/4"	6"	18 1/4"	Oval	1/2"	1 1/8"	3/8"-16	ASME B30.26, ASTM F1145 Type 1	0000000	00000
2,200	14 3/4"	6"	20 3/4"	Oval	11/16"	1 7/16"	1/2"-13	ASME B30.26, ASTM F1145 Type 1	0000000	00000
2,200	21"	12"	33"	Oval	11/16"	1 7/16"	1/2"-13	ASME B30.26, ASTM F1145 Type 1	0000000	00000
5,200	18 1/2"	6"	24 1/2"	Oval	1"	2 1/16"	3/4"-10	ASME B30.26, ASTM F1145 Type 1	0000000	000000
5,200	25"	12"	37"	Oval	1"	2 1/16"	3/4"-10	ASME B30.26, ASTM F1145 Type 1	0000000	000000
5,200	31"	18"	49"	Oval	1"	2 1/16"	3/4"-10	ASME B30.26, ASTM F1145 Type 1	0000000	000000

Eye-to-Eye Ball Bearing Swivels—Not for Lifting

Adjust the position of a fitting or an object under load and minimize twisting and knotting. The bearings are permanently lubricated and sealed to keep out debris. They have excellent resistance to salt water and chemicals.

		Eye
	Lg.	Thk.	ID	Wt. Cap., lb.		Each
316 Stainless Steel



		2 1/4"	1/4"	5/16"	1,100	0000000	000000