Right and Left Hand Threaded Rods

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	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Pitch Thread Pitch

	Length Length

	Thread Direction Thread Direction	Show

Right Hand and Left Hand

	Thread Direction Thread Direction	Hide

Right Hand

Left Hand

Right Hand and Left Hand

	Material Material

Aluminum

Stainless Steel

Steel

	Threading Threading

Fully Threaded

Threaded on Both Ends

Partially Threaded

	Gender Gender

Male

Female

	Thread Length Thread Length

	Hex Size Hex Size

	Rod Shape Rod Shape

Hex

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

REACH Compliant

	Component Component

Lead Screw

Nut

	Travel Distance per Turn Travel Distance per Turn

	Thread Type Thread Type

Acme

Diamond

	Travel Length Travel Length

	Usable Left-Hand Thread Length Usable Left-Hand Thread Length

16 1/2"

17"

	Usable Right-Hand Thread Length Usable Right-Hand Thread Length

16 1/2"

17"

	Tensile Strength Tensile Strength

50,000 to 99,999 psi

100,000 psi or greater

	Hardness Hardness

Brinell 60

Brinell 200

Rockwell C27

	Number of Thread Starts Number of Thread Starts

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340 Products

Selecting Compatible Lead Screws and Nuts

Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won’t unexpectedly move when the lead screw is at rest. To ensure compatibility, please select components that have the same thread direction and size.

Black-oxide alloy steel lead screws are hard and strong. They have mild corrosion resistance.

Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

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

Lead Screws—Right-Hand-and-Left-Hand Threaded

Right-Hand-and-Left-Hand Threads

Right-hand-and-left-hand threaded lead screws have right-hand threads on one end and left-hand threads on the other. Use them where you want to drive nuts in opposite directions at the same time, such as for widening and narrowing chutes on packing and assembly lines. Note: A short length of threading at the center of the lead screw is not usable.

		Usable Thread Lg.
Thread Size	Lg., ft.	Right Hand	Left Hand	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi		Each
Black-Oxide 4140 Alloy Steel
3/8"-12	3	17"	17"	1	1:1	0.083"	±0.0003" per in.	Class 2C	Brinell 200	95,000	000000000	0000000
1/2"-10	3	17"	17"	1	1:1	0.1"	±0.0003" per in.	Class 2C	Brinell 200	95,000	000000000	000000
5/8"-8	3	16 1/2"	16 1/2"	1	1:1	0.125"	±0.0003" per in.	Class 2C	Brinell 200	95,000	000000000	000000
3/4"-6	3	16 1/2"	16 1/2"	1	1:1	0.167"	±0.0003" per in.	Class 2C	Brinell 200	95,000	000000000	000000

Self-Reversing Lead Screws and Nuts

A crisscross thread pattern allows you to drive the nut back and forth without changing the lead screw's direction of rotation. When the nut reaches one end of the lead screw, it changes direction and travels back to the other end. Also known as diamond lead screws, they're sometimes used to guide cable and wire as it's spooled on a reel.

Travel distance per turn, also known as screw lead, is the distance the nut moves with one revolution of the lead screw.

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

	Lead Screw			Square Nut
Screw Dia.	Lg.	Travel Lg.	Hardness	Overall Ht.	Center Ht.	Hardness	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Tensile Strength, psi	Dynamic Thrust Load Cap., lbs.	Temperature Range, °F		Each
1144 Carbon Steel Lead Screw with Aluminum Square Nut
3/4"	16 7/8"	5 13/16"	Rockwell C27	1 7/8"	11/16"	Brinell 60	1	0.75"	±0.007" per in.	130,000	100	-50° to 350°	000000000	000000000
3/4"	19 7/8"	8 13/16"	Rockwell C27	1 7/8"	11/16"	Brinell 60	1	0.75"	±0.007" per in.	130,000	100	-50° to 350°	000000000	00000000
1"	23 1/2"	11 3/4"	Rockwell C27	2 3/8"	7/8"	Brinell 60	1	1"	±0.005" per in.	130,000	150	-50° to 350°	000000000	00000000
1"	29 1/2"	17 3/4"	Rockwell C27	2 3/8"	7/8"	Brinell 60	1	1"	±0.005" per in.	130,000	150	-50° to 350°	000000000	00000000

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 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.	Thread Pitch	Hex Size		Each		Each		Each
2" O'all Lg.
6-32	1/2"	__	3/16"	0000000	00000	0000000	000000	00000000	00000
10-32	3/4"	__	1/4"	0000000	0000	0000000	00000	00000000	0000
1/4"-28	3/4"	__	1/4"	0000000	0000	0000000	00000	00000000	0000
5/16"-24	3/4"	__	5/16"	0000000	00000	0000000	00000	000000	00
3/8"-24	3/4"	__	3/8"	0000000	0000	0000000	00000	000000	00
1/2"-20	3/4"	__	1/2"	0000000	00000	0000000	00000	000000	00
3" O'all Lg.
6-32	1/2"	__	3/16"	0000000	0000	0000000	00000	00000000	0000
10-32	3/4"	__	1/4"	0000000	0000	0000000	00000	00000000	0000
1/4"-28	3/4"	__	1/4"	0000000	0000	0000000	00000	00000000	0000
5/16"-24	3/4"	__	5/16"	0000000	00000	0000000	00000	00000000	00000
3/8"-24	1"	__	3/8"	0000000	00000	0000000	00000	00000000	00000
1/2"-20	1"	__	1/2"	0000000	00000	0000000	00000	00000000	00000
4" O'all Lg.
10-32	1"	__	1/4"	0000000	00000	0000000	00000	0000000	00000
1/4"-28	1"	__	1/4"	0000000	00000	0000000	00000	0000000	00000
5/16"-24	1 1/4"	__	5/16"	0000000	00000	0000000	00000	0000000	00000
3/8"-24	1 1/4"	__	3/8"	0000000	00000	0000000	00000	0000000	00000
7/16"-20	1 1/4"	__	7/16"	0000000	00000	0000000	00000	00000000	00000
1/2"-20	1 1/2"	__	1/2"	0000000	00000	0000000	00000	0000000	00000
5/8"-18	1 3/4"	__	5/8"	0000000	00000	0000000	00000	00000000	00000
3/4"-16	1 3/4"	__	3/4"	0000000	00000	0000000	00000	0000000	00000
6" O'all Lg.
10-32	1 3/16"	__	1/4"	0000000	00000	0000000	00000	0000000	00000
1/4"-28	1 1/2"	__	1/4"	0000000	00000	0000000	00000	0000000	00000
5/16"-24	1 5/8"	__	5/16"	0000000	00000	0000000	00000	0000000	00000
3/8"-24	2"	__	3/8"	00000000	00000	00000000	00000	0000000	00000
1/2"-20	2"	__	1/2"	00000000	00000	00000000	00000	0000000	00000
5/8"-18	2"	__	5/8"	00000000	00000	00000000	00000	00000000	00000
3/4"-16	2"	__	3/4"	00000000	00000	00000000	00000	0000000	00000
12" O'all Lg.
10-32	1 3/16"	__	1/4"	00000000	00000	00000000	00000	0000000	00000
1/4"-28	1 3/16"	__	1/4"	00000000	00000	00000000	00000	0000000	00000
5/16"-24	1 5/8"	__	5/16"	00000000	00000	00000000	00000	0000000	00000
3/8"-24	2"	__	3/8"	00000000	00000	00000000	00000	0000000	00000
1/2"-20	2"	__	1/2"	00000000	00000	00000000	00000	0000000	00000
3/4"-16	2"	__	3/4"	00000000	00000	00000000	000000	0000000	00000
18" O'all Lg.
10-32	1 3/16"	__	1/4"	00000000	00000	00000000	00000	0000000	00000
1/4"-28	1 1/2"	__	1/4"	00000000	00000	00000000	00000	0000000	00000
5/16"-24	1 5/8"	__	5/16"	00000000	00000	00000000	00000	0000000	00000
3/8"-24	2"	__	3/8"	00000000	00000	00000000	00000	0000000	00000
1/2"-20	2"	__	1/2"	00000000	00000	00000000	00000	0000000	00000
3/4"-16	2"	__	3/4"	00000000	00000	00000000	000000	0000000	00000
24" O'all Lg.
1/4"-28	1 1/2"	__	1/4"	00000000	00000	000000	00	0000000	00000
5/16"-24	1 5/8"	__	5/16"	00000000	00000	000000	00	0000000	00000
3/8"-24	2"	__	3/8"	00000000	00000	000000	00	0000000	00000
1/2"-20	2"	__	1/2"	00000000	00000	000000	00	0000000	00000
3/4"-16	2"	__	3/4"	00000000	00000	000000	00	0000000	00000
50mm O'all Lg.
M5	12mm	0.8 mm	5mm	0000000	0000	0000000	0000	00000000	0000
M6	16mm	1 mm	6mm	0000000	0000	0000000	0000	00000000	0000
M8	20mm	1.25 mm	8mm	0000000	0000	0000000	0000	00000000	0000
M10	20mm	1.5 mm	10mm	0000000	0000	0000000	0000	000000	00
M16	20mm	2 mm	16mm	0000000	0000	0000000	00000	000000	00
76mm O'all Lg.
M5	12mm	0.8 mm	5mm	0000000	0000	0000000	0000	00000000	0000
M6	16mm	1 mm	6mm	0000000	0000	0000000	0000	00000000	0000
M8	20mm	1.25 mm	8mm	0000000	0000	0000000	00000	00000000	00000
M10	25mm	1.5 mm	10mm	0000000	0000	0000000	00000	00000000	00000
M12	25mm	1.75 mm	12mm	0000000	0000	0000000	00000	00000000	00000
100mm O'all Lg.
M6	25mm	1 mm	6mm	0000000	0000	0000000	00000	00000000	00000
M8	30mm	1.25 mm	8mm	0000000	00000	0000000	00000	00000000	00000
M10	30mm	1.5 mm	10mm	0000000	00000	0000000	00000	000000	00
M12	40mm	1.75 mm	12mm	0000000	00000	0000000	00000	000000	00
M14	40mm	2 mm	14mm	0000000	00000	000000	00	000000	00
M20	40mm	2.5 mm	20mm	0000000	00000	000000	00	000000	00
150mm O'all Lg.
M5	30mm	0.8 mm	5mm	0000000	00000	0000000	00000	00000000	00000
M6	40mm	1 mm	6mm	0000000	00000	0000000	00000	00000000	00000
M8	40mm	1.25 mm	8mm	0000000	00000	0000000	00000	00000000	00000
M10	50mm	1.5 mm	10mm	0000000	00000	0000000	00000	000000	00
M12	50mm	1.75 mm	12mm	0000000	00000	0000000	00000	000000	00
M14	50mm	2 mm	14mm	0000000	00000	0000000	00000	000000	00
M16	50mm	2 mm	16mm	0000000	00000	0000000	00000	000000	00
M20	50mm	2.5 mm	20mm	0000000	00000	0000000	00000	000000	00
305mm O'all Lg.
M5	30mm	0.8 mm	5mm	0000000	00000	0000000	00000	000000	00
M8	40mm	1.25 mm	8mm	0000000	00000	0000000	00000	000000	00
M10	50mm	1.5 mm	10mm	0000000	00000	0000000	00000	000000	00
M12	50mm	1.75 mm	12mm	0000000	00000	0000000	00000	000000	00
M14	50mm	2 mm	14mm	0000000	00000	000000	00	000000	00
M20	50mm	2.5 mm	20mm	0000000	00000	000000	00	000000	00
455mm O'all Lg.
M5	30mm	0.8 mm	5mm	0000000	00000	0000000	00000	000000	00
M6	40mm	1 mm	6mm	0000000	00000	0000000	00000	000000	00
M8	40mm	1.25 mm	8mm	0000000	00000	0000000	00000	000000	00
M10	50mm	1.5 mm	10mm	0000000	00000	0000000	00000	000000	00
M12	50mm	1.75 mm	12mm	0000000	00000	0000000	00000	000000	00
610mm O'all Lg.
M6	40mm	1 mm	6mm	0000000	00000	000000	00	000000	00
M8	40mm	1.25 mm	8mm	0000000	00000	000000	00	000000	00
M10	50mm	1.5 mm	10mm	0000000	00000	000000	00	000000	00
M12	50mm	1.75 mm	12mm	0000000	00000	000000	00	000000	00

Internally Threaded Turnbuckle-Style Connecting Rods

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.
10-32	1/2"	5/16"	0000000	00000
1/4"-28	3/4"	3/8"	0000000	00000
5/16"-24	3/4"	1/2"	0000000	00000
3/8"-24	3/4"	1/2"	0000000	00000
7/16"-20	3/4"	5/8"	0000000	00000
1/2"-20	3/4"	5/8"	0000000	00000
5/8"-18	3/4"	3/4"	0000000	00000
3/4"-16	3/4"	1"	0000000	00000
3" O'all Lg.
1/4"-28	3/4"	3/8"	0000000	00000
5/16"-24	3/4"	1/2"	0000000	00000
3/8"-24	1"	1/2"	0000000	00000
1/2"-20	1"	5/8"	0000000	00000
5/8"-18	1"	3/4"	0000000	00000
3/4"-16	1"	1"	0000000	00000
4" O'all Lg.
10-32	1/2"	5/16"	0000000	00000
1/4"-28	3/4"	3/8"	0000000	00000
5/16"-24	3/4"	1/2"	0000000	00000
3/8"-24	1"	1/2"	0000000	00000
7/16"-20	1"	5/8"	0000000	00000
1/2"-20	1"	5/8"	0000000	00000
5/8"-18	1"	7/8"	0000000	00000
3/4"-16	1"	1"	0000000	00000
6" O'all Lg.
10-32	1/2"	5/16"	0000000	00000
1/4"-28	3/4"	3/8"	0000000	00000
5/16"-24	3/4"	1/2"	0000000	00000
3/8"-24	1"	1/2"	0000000	00000
7/16"-20	1"	5/8"	0000000	00000
1/2"-20	1"	5/8"	0000000	00000
5/8"-18	1"	7/8"	0000000	00000
3/4"-16	1"	1"	0000000	00000
12" O'all Lg.
1/4"-28	3/4"	3/8"	0000000	00000
3/8"-24	1"	1/2"	0000000	00000
7/16"-20	1"	5/8"	00000000	00000
1/2"-20	1"	5/8"	00000000	00000
5/8"-18	1"	7/8"	00000000	00000
3/4"-16	1"	1"	00000000	00000
18" O'all Lg.
3/8"-24	1"	1/2"	00000000	00000
1/2"-20	1"	5/8"	00000000	00000
5/8"-18	1"	7/8"	00000000	000000
18-8 Stainless Steel
2" O'all Lg.
1/4"-28	3/4"	3/8"	0000000	00000
3/8"-24	3/4"	1/2"	0000000	00000
3" O'all Lg.
1/4"-28	3/4"	3/8"	0000000	00000
3/8"-24	1"	1/2"	0000000	00000
1/2"-20	1"	5/8"	0000000	00000
4" O'all Lg.
10-32	1/2"	5/16"	0000000	00000
1/4"-28	3/4"	3/8"	0000000	00000
5/16"-24	3/4"	1/2"	0000000	00000
3/8"-24	1"	1/2"	0000000	00000
1/2"-20	1"	5/8"	0000000	00000
5/8"-18	1"	7/8"	0000000	00000
6" O'all Lg.
1/4"-28	3/4"	3/8"	0000000	00000
5/16"-24	3/4"	1/2"	0000000	00000
1/2"-20	1"	5/8"	0000000	00000
5/8"-18	1"	7/8"	0000000	00000
3/4"-16	1"	1"	0000000	00000
12" O'all Lg.
3/8"-24	1"	1/2"	0000000	00000
1/2"-20	1"	5/8"	00000000	00000

Aluminum
Thread Size	Thread Lg.	Hex Size		Each
2" O'all Lg.
10-32	1/2"	5/16"	00000000	000000
1/4"-28	3/4"	3/8"	0000000	00000
5/16"-24	3/4"	1/2"	0000000	00000
3/8"-24	3/4"	1/2"	0000000	00000
1/2"-20	3/4"	5/8"	0000000	00000
3/4"-16	3/4"	1"	0000000	00000
3" O'all Lg.
6-32	1/2"	5/16"	00000000	0000
10-32	1/2"	5/16"	00000000	00000
1/4"-28	3/4"	3/8"	0000000	00000
5/16"-24	3/4"	1/2"	0000000	00000
3/8"-24	1"	1/2"	0000000	00000
1/2"-20	1"	5/8"	0000000	00000
3/4"-16	1"	1"	0000000	00000
4" O'all Lg.
10-32	1/2"	5/16"	00000000	00000
1/4"-28	3/4"	3/8"	0000000	00000
5/16"-24	3/4"	1/2"	0000000	00000
3/8"-24	1"	1/2"	0000000	00000
1/2"-20	1"	5/8"	0000000	00000
3/4"-16	1"	1"	0000000	00000
6" O'all Lg.
1/4"-28	3/4"	3/8"	0000000	00000
5/16"-24	3/4"	1/2"	0000000	00000
3/8"-24	1"	1/2"	0000000	00000
1/2"-20	1"	5/8"	0000000	00000
3/4"-16	1"	1"	0000000	00000
12" O'all Lg.
1/4"-28	3/4"	3/8"	0000000	00000
5/16"-24	3/4"	1/2"	0000000	00000
3/8"-24	1"	1/2"	0000000	00000
1/2"-20	1"	5/8"	0000000	00000
18" O'all Lg.
1/2"-20	1"	5/8"	00000000	000000

Metric

Carbon Steel
Thread Size	Thread Pitch, mm	Thread Lg., mm	Hex Size, mm		Each
50 mm O'all Lg.
M5	0.8	12	10	0000000	00000
M8	1.25	16	12	0000000	0000
M10	1.5	16	17	0000000	0000
76 mm O'all Lg.
M6	1	16	10	0000000	0000
M8	1.25	20	12	0000000	00000
M10	1.5	20	17	0000000	00000
M12	1.75	20	19	0000000	00000
100 mm O'all Lg.
M6	1	16	10	0000000	00000
M8	1.25	20	12	0000000	00000
M10	1.5	25	17	0000000	00000
M14	2	25	22	0000000	00000
M16	2	25	24	0000000	00000
150 mm O'all Lg.
M8	1.25	20	12	0000000	00000
M10	1.5	25	17	0000000	00000
M12	1.75	25	19	0000000	00000
305 mm O'all Lg.
M10	1.5	25	17	0000000	00000
18-8 Stainless Steel
50 mm O'all Lg.
M5	0.8	12	10	0000000	0000
M6	1	16	10	0000000	0000
M8	1.25	16	12	0000000	00000
M10	1.5	16	17	0000000	00000
76 mm O'all Lg.
M6	1	16	10	0000000	00000
M8	1.25	20	12	0000000	00000
M10	1.5	20	17	0000000	00000
M12	1.75	20	19	0000000	00000
M14	2	20	22	0000000	00000
100 mm O'all Lg.
M6	1	16	10	0000000	00000
M8	1.25	20	12	0000000	00000
M10	1.5	25	17	0000000	00000
150 mm O'all Lg.
M5	0.8	12	10	0000000	00000
M10	1.5	25	17	0000000	00000
Aluminum
50 mm O'all Lg.
M10	1.5	16	17	0000000	00000
76 mm O'all Lg.
M6	1	16	10	0000000	00000
M8	1.25	20	12	0000000	00000
100 mm O'all Lg.
M6	1	16	10	0000000	00000
M8	1.25	20	12	00000000	00000
150 mm O'all Lg.
M6	1	16	10	00000000	00000
M10	1.5	25	17	00000000	00000
305 mm O'all Lg.
M8	1.25	20	12	00000000	00000
M20	2.5	25	30	00000000	000000

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Selecting Compatible Lead Screws and Nuts

Precision Acme Lead Screws and Nuts

Self-Reversing Lead Screws and Nuts

Turnbuckle-Style Connecting Rods

Internally Threaded Turnbuckle-Style Connecting Rods