1/2"-20 Turnbuckles | McMaster-Carr

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	System of Measurement System of Measurement

Inch

	Thread Size Thread Size	Show

1/2"-20

	Thread Size Thread Size	Hide

	Thread Direction Thread Direction

Right Hand

Left Hand

Right Hand and Left Hand

	Turnbuckle Type Turnbuckle Type

	Body Material Body Material

316 Stainless Steel

18-8 Stainless Steel

	Overall Length Overall Length

	Material Material

Steel

Stainless Steel

Aluminum

	Body Style Body Style

Closed

	Clevis Pin Diameter Clevis Pin Diameter

1/2"

	Capacity Capacity

Less than 1,000 lbs.

2,000 to 9,999 lbs.

	End Fitting Type End Fitting Type


Clevis	Eye

Hook

	Retracted Length Retracted Length

12"

	Clevis Inside Width Clevis Inside Width

1/2"

	Thread Length Thread Length

	Extended Length Extended Length

10" to 19.9"

	Gender Gender

Female

Male

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Maximum Adjustment Maximum Adjustment

4 3/4"

	End Fitting Material End Fitting Material

316 Stainless Steel

18-8 Stainless Steel

	Hex Size Hex Size

1/2"

5/8"

	Application Application

Not for Lifting

	Eye Shape Eye Shape

	Round

	End Fitting Fabrication End Fitting Fabrication

Forged

Wire Drawn

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52 Products

About Turnbuckles and End Fittings

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.

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

				Clevis Pin
Capacity, lbs.	Retracted Lg.	Max. Adjustment	Extended Lg.	Dia.	Closure Type	Clevis Inside Wd.	Thread Size	Features		Each
316 Stainless Steel Body with 316 Stainless Steel Fittings
4,200	12"	4 3/4"	16 3/4"	1/2"	Cotter Ring	1/2"	1/2"-20	Jam Nuts, Bronze Pivot Insert	0000000	0000000

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.

316 stainless steel has good corrosion resistance.

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

316 Stainless Steel Body with 316 Stainless Steel Fittings
Capacity, lbs.	Retracted Lg.	Max. Adjustment	Extended Lg.	Eye Shape	Eye ID	Thread Size	Features		Each
4,200	12"	4 3/4"	16 3/4"	Round	3/4"	1/2"-20	Jam Nuts	0000000	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.

316 stainless steel has good corrosion resistance.

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

316 Stainless Steel Body with 316 Stainless Steel Fittings
Capacity, lbs.	Retracted Lg.	Max. Adjustment	Extended Lg.	Hook Opening Wd.	Thread Size	Features		Each
700	12"	4 3/4"	16 3/4"	3/4"	1/2"-20	Jam Nuts	0000000	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.

Aluminum is lightweight and has good corrosion resistance.

316 stainless steel has good corrosion resistance.

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

316 Stainless Steel Body with 316 Stainless Steel Fittings
Capacity, lbs.	Retracted Lg.	Max. Adjustment	Extended Lg.	Hook Opening Wd.	Eye Shape	Eye ID	Thread Size	Features		Each
700	12"	4 3/4"	16 3/4"	3/4"	Round	3/4"	1/2"-20	Jam Nuts	0000000	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.

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

				Clevis Pin
Capacity, lbs.	Retracted Lg.	Max. Adjustment	Extended Lg.	Dia.	Closure Type	Clevis Inside Wd.	Eye Shape	Eye ID	Thread Size	Features		Each
316 Stainless Steel Body with 316 Stainless Steel Fittings
4,200	12"	4 3/4"	16 3/4"	1/2"	Cotter Ring	1/2"	Round	3/4"	1/2"-20	Jam Nuts, Bronze Pivot Insert	0000000	0000000

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.

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

					Clevis Pin
Capacity, lbs.	Retracted Lg.	Max. Adjustment	Extended Lg.	Hook Opening Wd.	Dia.	Closure Type	Clevis Inside Wd.	Thread Size	Features		Each
316 Stainless Steel Body with 316 Stainless Steel Fittings
700	12"	4 3/4"	16 3/4"	3/4"	1/2"	Cotter Ring	1/2"	1/2"-20	Jam Nuts, Bronze Pivot Insert	0000000	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 18-8 stainless steel, they have good corrosion resistance.

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

18-8 Stainless Steel
Thread Size	Max. Adjustment	Overall Lg.	Capacity, lbs.		Each
1/2"-20	4 3/4"	7"	4,200	0000000	000000

Clevis End Fittings for Turnbuckles—Not for Lifting

With Cotter Ring

18-8 stainless steel fittings have good corrosion resistance.

Forged fittings are stronger than cast and wire drawn fittings.

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

		Clevis Pin					Right-Hand Thread Direction		Left-Hand Thread Direction
Thread Size	Thread Lg.	Dia.	Closure Type	Clevis Inside Wd.	Overall Lg.	Capacity, lbs.		Each		Each
Forged 18-8 Stainless Steel
1/2"-20	3 1/2"	1/2"	Cotter Ring	1/2"	6 3/8"	4,200	00000000	0000000	00000000	0000000

Eye End Fittings for Turnbuckles—Not for Lifting

Round Eye

18-8 stainless steel fittings have good corrosion resistance.

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

						Right-Hand Thread Direction		Left-Hand Thread Direction
Thread Size	Thread Lg.	Eye ID	Eye Shape	Overall Lg.	Capacity, lbs.		Each		Each
Wire Drawn 18-8 Stainless Steel
1/2"-20	3 1/2"	3/4"	Round	5 5/16"	4,200	00000000	000000	00000000	000000

Hook End Fittings for Turnbuckles—Not for Lifting

18-8 stainless steel fittings have good corrosion resistance.

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

					Right-Hand Thread Direction		Left-Hand Thread Direction
Thread Size	Thread Lg.	Hook Opening Wd.	Overall Lg.	Capacity, lbs.		Each		Each
Wire Drawn 18-8 Stainless Steel
1/2"-20	3 3/4"	3/4"	5 11/16"	700	00000000	000000	00000000	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.

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

Aluminum rods are lightweight and have good corrosion resistance.

18-8 stainless steel rods have good corrosion and chemical resistance

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

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

Inch

Carbon Steel
Thread Size	Thread Lg.	Hex Size		Each
2" O'all Lg.
1/2"-20	3/4"	5/8"	0000000	000000
3" O'all Lg.
1/2"-20	1"	5/8"	0000000	00000
4" O'all Lg.
1/2"-20	1"	5/8"	0000000	00000
6" O'all Lg.
1/2"-20	1"	5/8"	0000000	00000
12" O'all Lg.
1/2"-20	1"	5/8"	00000000	00000
18" O'all Lg.
1/2"-20	1"	5/8"	00000000	00000
18-8 Stainless Steel
2" O'all Lg.
1/2"-20	3/4"	5/8"	0000000	00000
3" O'all Lg.
1/2"-20	1"	5/8"	0000000	00000
4" O'all Lg.
1/2"-20	1"	5/8"	0000000	00000
6" O'all Lg.
1/2"-20	1"	5/8"	0000000	00000
12" O'all Lg.
1/2"-20	1"	5/8"	00000000	00000
18" O'all Lg.
1/2"-20	1"	5/8"	00000000	000000
Aluminum
2" O'all Lg.
1/2"-20	3/4"	5/8"	0000000	00000
3" O'all Lg.
1/2"-20	1"	5/8"	0000000	00000
4" O'all Lg.
1/2"-20	1"	5/8"	0000000	00000
6" O'all Lg.
1/2"-20	1"	5/8"	0000000	00000
12" O'all Lg.
1/2"-20	1"	5/8"	0000000	00000
18" O'all Lg.
1/2"-20	1"	5/8"	00000000	00000

Turnbuckle-Style Connecting Rods

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

Aluminum rods are lightweight and have good corrosion resistance.

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

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

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

			Carbon Steel		18-8 Stainless Steel		Aluminum
Thread Size	Thread Lg.	Hex Size		Each		Each		Each
2" O'all Lg.
1/2"-20	3/4"	1/2"	0000000	000000	0000000	000000	00000000	000000
3" O'all Lg.
1/2"-20	1"	1/2"	0000000	00000	0000000	00000	00000000	00000
4" O'all Lg.
1/2"-20	1 1/2"	1/2"	0000000	00000	0000000	00000	0000000	00000
6" O'all Lg.
1/2"-20	2"	1/2"	00000000	00000	00000000	00000	0000000	00000
12" O'all Lg.
1/2"-20	2"	1/2"	00000000	00000	00000000	00000	0000000	00000
18" O'all Lg.
1/2"-20	2"	1/2"	00000000	00000	00000000	00000	0000000	00000
24" O'all Lg.
1/2"-20	2"	1/2"	00000000	00000	00000000	000000	0000000	00000

About Turnbuckles and End Fittings

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

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

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

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

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

Hook-to-Clevis Turnbuckles—Not for Lifting

Closed Turnbuckle Bodies—Not for Lifting

Clevis End Fittings for Turnbuckles—Not for Lifting

Eye End Fittings for Turnbuckles—Not for Lifting

Hook End Fittings for Turnbuckles—Not for Lifting

Internally Threaded Turnbuckle-Style Connecting Rods

Turnbuckle-Style Connecting Rods