5/8"-18 Turnbuckles | McMaster-Carr

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1,000 lb. to 1,999 lb.

2,000 lb. to 9,999 lb.

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Clevis Pin Diameter

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Right Hand and Left Hand

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7/8"

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Cold Drawn

Forged

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Galvanized

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Yes

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29 Products

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 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	4361N16	000000

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



5,900	15"	5 3/4"	20 3/4"	Round	7/8"	5/8"-18	Jam Nuts	3082T16	0000000

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

The closed body protects threads from damage and debris and has a slim profile to fit in tight spaces. Made of 316 stainless steel, these turnbuckles have excellent corrosion resistance.

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

316 Stainless Steel Body with 316 Stainless Steel Fittings

				Clevis Pin
Wt. Cap., lb.	Retracted Lg.	Max. Adjustment	Extended Lg.	Dia.	Closure Method	Clevis Inside Wd.	Thread Size	Features		Each



	5,900	15 1/4"	5 1/4"	20 1/2"	5/8"	Cotter Ring	5/8"	5/8"-18	Jam Nuts, Bronze Pivot Insert	3082T36	0000000

Closed Turnbuckle Bodies—Not for Lifting

The closed body protects threads from damage and debris and has a slim profile to fit in tight spaces. Made of 316 stainless steel, they have good corrosion resistance.

316 Stainless Steel

Max. Adjustment	Thread Size	Overall Lg.		Each



5,900	5"	5/8"-18	8 5/8"	3082T64	000000

Internally Threaded Turnbuckle-Style Connecting Rods

Similar to turnbuckles, these rods have right-hand threads on one end and left-hand threads on the other so you can make a linkage that adjusts for tension. Add right- and left-hand threaded rod ends to build your linkages. Rods have a hex-shaped body so you can adjust them with a wrench.

Note: The end with the left-hand threads is marked with a groove.

Carbon Steel—Carbon steel rods generally handle higher loads than aluminum and stainless steel rods.

18-8 Stainless Steel—18-8 stainless steel rods have good corrosion and chemical resistance.

		Each
Carbon Steel







	2" Overall Length

	5/8"-18	3/4"	3/4"	8415N63	000000




			3" Overall Length

			5/8"-18	1"	3/4"	8415N73	00000




					4" Overall Length

					5/8"-18	1"	7/8"	8415N83	00000




							6" Overall Length

							5/8"-18	1"	7/8"	8415N93	00000




									12" Overall Length

									5/8"-18	1"	7/8"	8415N103	00000




											18" Overall Length

											5/8"-18	1"	7/8"	8415N111	000000


											18-8 Stainless Steel







															4" Overall Length

															5/8"-18	1"	7/8"	8416N83	00000




																	6" Overall Length

5/8"-18																	1"	7/8"	8416N93	00000

Hook-to-Clevis Turnbuckles—Not for Lifting

The closed body protects threads from damage and debris and has a slim profile to fit in tight spaces. Made of 316 stainless steel, these turnbuckles have good corrosion resistance.

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

316 Stainless Steel Body with 316 Stainless Steel Fittings

					Clevis Pin
Wt. Cap., lb.	Retracted Lg.	Max. Adjustment	Extended Lg.	Hook Opening Wd.	Dia.	Closure Method	Clevis Inside Wd.	Thread Size	Features		Each



	1,200	15"	5 3/4"	20 3/4"	7/8"	5/8"	Cotter Ring	5/8"	5/8"-18	Jam Nuts, Bronze Pivot Insert	3082T57	0000000

Closed-Body Hook-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.

316 Stainless Steel Body with 316 Stainless Steel Fittings

316 stainless steel has good corrosion resistance.

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



1,200	15"	6"	21"	7/8"	Round	7/8"	5/8"-18	Jam Nuts	3082T56	0000000

Closed-Body Clevis-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. Made of 316 stainless steel, these turnbuckles have good corrosion resistance.

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

316 Stainless Steel Body with 316 Stainless Steel Fittings

				Clevis Pin
Wt. Cap., lb.	Retracted Lg.	Max. Adjustment	Extended Lg.	Dia.	Closure Method	Clevis Inside Wd.	Eye Shape	Eye ID	Thread Size	Features		Each



	5,900	15"	5"	20"	5/8"	Cotter Ring	5/8"	Round	7/8"	5/8"-18	Jam Nuts, Bronze Pivot Insert	3082T26	0000000

Closed-Body Hook-to-Hook 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.

316 Stainless Steel Body with 316 Stainless Steel Fittings

316 stainless steel has good corrosion resistance.

Retracted Lg.	Max. Adjustment	Extended Lg.	Hook Opening Wd.	Thread Size	Features		Each



1,200	14 5/8"	6 1/4"	20 7/8"	7/8"	5/8"-18	Jam Nuts	3082T55	0000000

Turnbuckle-Style Connecting Rods

Note: The end with the left-hand threads is marked with a groove.

Carbon Steel—Carbon steel rods handle higher loads than aluminum and 18-8 stainless steel rods.

18-8 Stainless Steel—18-8 stainless steel rods are corrosion resistant and stand up to chemicals.

Aluminum—Aluminum rods are lightweight and have good corrosion resistance.

				Carbon Steel		18-8 Stainless Steel		Aluminum
	Thread Size	Thread Lg.	Hex Size		Each		Each		Each
4" Overall Length



		5/8"-18	1 3/4"	5/8"	8421N94	000000	8422N94	000000	8420K178	000000


		6" Overall Length



				5/8"-18	2"	5/8"	8421N104	00000	8422N104	00000	8420K182	00000

Clevis End Fittings for Turnbuckles—Not for Lifting

Forged 18-8 Stainless Steel

Cotter Ring

Closure

Forged fittings are stronger than cast and wire drawn fittings.

18-8 stainless steel fittings have good corrosion resistance.

	Clevis Pin						Right-Hand Thread Direction		Left-Hand Thread Direction
Wt. Cap., lb.	Dia.	Closure Method	Clevis Inside Wd.	Thread Size	Thread Lg.	Overall Lg.		Each		Each



	5,900	5/8"	Cotter Ring	5/8"	5/8"-18	4 5/16"	7 5/8"	3082T398	0000000	3082T399	0000000

Eye End Fittings for Turnbuckles—Not for Lifting

Cold Drawn 18-8 Stainless Steel

Round Eye

18-8 stainless steel fittings have good corrosion resistance.

						Right-Hand Thread Direction		Left-Hand Thread Direction
Wt. Cap., lb.	Eye Shape	Eye ID	Thread Size	Thread Lg.	Overall Lg.		Each		Each



	5,900	Round	7/8"	5/8"-18	4 3/16"	6 1/2"	3082T385	000000	3082T386	000000

Left-Hand-Thread Hex Nuts

These nuts tighten when turned to the left. Use them with left-hand rods and screws to prevent counterclockwise-moving parts from loosening.

Corrosion-Resistant Stainless Steel

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.

	Wd.	Ht.	Pkg. Qty.		Pkg.
Highly Corrosion-Resistant 316 Stainless Steel



	5/8"-18	15/16"	35/64"	1	95355A263	000000

Hook End Fittings for Turnbuckles—Not for Lifting

Cold Drawn 18-8 Stainless Steel

Image of Attribute. Front orientation. Contains Annotated.

18-8 stainless steel fittings have good corrosion resistance.

					Right-Hand Thread Direction		Left-Hand Thread Direction
Wt. Cap., lb.	Hook Opening Wd.	Thread Size	Thread Lg.	Overall Lg.		Each		Each



	1,200	7/8"	5/8"-18	4 3/16"	6 3/4"	3082T372	000000	3082T373	000000