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, select components that have the same thread size.

Lead screws are 1018 carbon steel for good machinability.

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 Threaded

1018 Carbon Steel
Thread Size	Thread Pitch, mm	Lg., mm	No. of Thread Starts	Speed Ratio	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Thread Fit	Hardness	Tensile Strength, psi	Specifications Met		Each
M10	2	1,750	1	1:1	2	±0.15 mm per 300 mm	Class 8E	Brinell 150	70,000	DIN 103	000000	000000
M12	3	1,750	1	1:1	3	±0.15 mm per 300 mm	Class 8E	Brinell 150	70,000	DIN 103	000000	00000
M16	3	1,750	1	1:1	3	±0.15 mm per 300 mm	Class 8E	Brinell 150	70,000	DIN 103	000000	00000
M20	4	1,750	1	1:1	4	±0.15 mm per 300 mm	Class 8E	Brinell 150	70,000	DIN 103	000000	000000
M24	5	1,750	1	1:1	5	±0.15 mm per 300 mm	Class 8E	Brinell 150	70,000	DIN 103	000000	000000
M28	5	1,750	1	1:1	5	±0.15 mm per 300 mm	Class 8E	Brinell 150	85,000	DIN 103	0000000	000000
M40	7	1,750	1	1:1	7	±0.15 mm per 300 mm	Class 8E	Brinell 150	70,000	DIN 103	0000000	000000

7 Products

Selecting Compatible Lead Screws and Nuts

Metric Precision Acme Lead Screws and Nuts