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Acme Lead Screws and Nuts
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Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.
Coupling Nuts—Right-Hand Thread
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Coupling nuts connect two lead screws.
Carbon Steel—Carbon steel components are easier to machine than alloy steel components.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
Coupling Nuts—Left-Hand Thread
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Coupling nuts connect two lead screws.
Carbon Steel—Carbon steel components are easier to machine than alloy steel components.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
Hex Nuts—Right-Hand Thread
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Hex nuts fasten and position lead screw components.
Carbon Steel—Carbon steel components are easier to machine than alloy steel components.
Zinc-Plated Carbon Steel—Zinc-plated carbon steel components have mild corrosion resistance and are easier to machine than alloy steel components.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
Thread Size | Thread Type | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Carbon Steel | |||||||||||||
| 1 1/4"-4 | Acme | 1 1/4" | 2" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 94815A112 | 000000 | ||
| 1 1/4"-5 | Acme | 1 7/32" | 2" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 94815A116 | 00000 | ||
| 2"-4 | Acme | 1 31/32" | 3" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 94815A114 | 00000 | ||
Zinc-Plated Carbon Steel | |||||||||||||
| 1 1/4"-4 | Acme | 1 7/32" | 2" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A126 | 00000 | ||
| 1 1/4"-5 | Acme | 1 1/4" | 2" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A820 | 00000 | ||
| 2"-4 | Acme | 1 31/32" | 3" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A131 | 000000 | ||
Hex Nuts—Left-Hand Thread
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Hex nuts fasten and position lead screw components.
Carbon Steel—Carbon steel components are easier to machine than alloy steel components.
Zinc-Plated Carbon Steel—Zinc-plated carbon steel components have mild corrosion resistance and are easier to machine than alloy steel components.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
Thread Size | Thread Type | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Fastener Strength Grade/Class | Hardness | Tensile Strength, psi | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Carbon Steel | ||||||||||||||
| 1/4"-16 | Acme | 15/64" | 1/2" | 1 | 1:1 | 0.063" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A009 | 00000 | ||
| 3/8"-8 | Stub Acme | 23/64" | 11/16" | 1 | 1:1 | 0.125" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A014 | 0000 | ||
| 3/8"-10 | Stub Acme | 23/64" | 11/16" | 1 | 1:1 | 0.1" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A019 | 0000 | ||
| 3/8"-12 | Acme | 23/64" | 11/16" | 1 | 1:1 | 0.083" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A106 | 0000 | ||
| 1/2"-8 | Acme | 31/64" | 7/8" | 1 | 1:1 | 0.125" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A023 | 0000 | ||
| 1/2"-10 | Acme | 31/64" | 7/8" | 1 | 1:1 | 0.1" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A107 | 0000 | ||
| 5/8"-6 | Acme | 39/64" | 1 1/16" | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A027 | 0000 | ||
| 5/8"-8 | Acme | 39/64" | 1 1/16" | 1 | 1:1 | 0.125" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A108 | 0000 | ||
| 3/4"-5 | Acme | 47/64" | 1 1/4" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A117 | 0000 | ||
| 3/4"-6 | Acme | 47/64" | 1 1/4" | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A109 | 0000 | ||
| 3/4"-8 | Acme | 47/64" | 1 1/4" | 1 | 1:1 | 0.125" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A046 | 0000 | ||
| 7/8"-6 | Acme | 55/64" | 1 7/16" | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A120 | 00000 | ||
| 1"-4 | Acme | 63/64" | 1 5/8" | 1 | 1:1 | 0.25" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A054 | 00000 | ||
| 1"-5 | Acme | 63/64" | 1 5/8" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A110 | 0000 | ||
| 1"-6 | Acme | 63/64" | 1 5/8" | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A111 | 0000 | ||
| 1"-8 | Acme | 63/64" | 1 5/8" | 1 | 1:1 | 0.125" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A066 | 00000 | ||
| 1"-10 | Acme | 63/64" | 1 5/8" | 1 | 1:1 | 0.1" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A121 | 0000 | ||
| 1 1/8"-5 | Acme | 1 7/64" | 1 13/16" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A119 | 00000 | ||
| 1 1/4"-4 | Acme | 1 7/32" | 2" | 1 | 1:1 | 0.25" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A118 | 00000 | ||
| 1 1/4"-5 | Acme | 1 7/32" | 2" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A112 | 00000 | ||
| 1 3/8"-4 | Acme | 1 11/32" | 2 3/16" | 1 | 1:1 | 0.25" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A122 | 00000 | ||
| 1 1/2"-4 | Acme | 1 15/32" | 2 3/8" | 1 | 1:1 | 0.25" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A113 | 00000 | ||
| 1 1/2"-5 | Acme | 1 1/2" | 2 3/8" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A123 | 00000 | ||
| 2"-4 | Acme | 2" | 3" | 1 | 1:1 | 0.25" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A114 | 00000 | ||
Zinc-Plated Carbon Steel | ||||||||||||||
| 1 1/4"-5 | Acme | 1 1/4" | 2" | 1 | 1:1 | 0.2" | Acme Class 2G | — | Rockwell B75 | Not Rated | 98948A220 | 00000 | ||
Metric Lead Screws and Nuts
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Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. To ensure compatibility, please select components that have the same thread direction, size, and number of thread starts. Class 7e and 7H components are compatible.
Hex Nuts—Right-Hand Thread
|
Hex nuts fasten and position lead screw components.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
Thread Size | Thread Type | Ht., mm | Wd., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Fastener Strength Grade/Class | Hardness | Tensile Strength | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Carbon Steel | ||||||||||||||
| M12 × 3 mm | Metric Trapezoidal | 12 | 22.2 | 1 | 1:1 | 3 | Metric Trapezoidal Class 7H | SAE Grade 2 | Not Rated | Not Rated | 94353A120 | 000000 | ||
| M16 × 4 mm | Metric Trapezoidal | 16 | 27 | 1 | 1:1 | 4 | Metric Trapezoidal Class 7H | SAE Grade 2 | Not Rated | Not Rated | 94353A160 | 00000 | ||
| M20 × 4 mm | Metric Trapezoidal | 20 | 31.75 | 1 | 1:1 | 4 | Metric Trapezoidal Class 7H | SAE Grade 2 | Not Rated | Not Rated | 94353A200 | 00000 | ||
| M26 × 5 mm | Metric Trapezoidal | 25.4 | 41.3 | 1 | 1:1 | 5 | Metric Trapezoidal Class 7H | SAE Grade 2 | Not Rated | Not Rated | 94353A260 | 00000 | ||
| M40 × 7 mm | Metric Trapezoidal | 39.9 | 60.33 | 1 | 1:1 | 7 | Metric Trapezoidal Class 7H | SAE Grade 2 | Not Rated | Not Rated | 94353A400 | 00000 | ||
