Filter by
Finish
System of Measurement
Thread Size
Component
Nut Type
Thread Direction
Material
Threading
Height
Number of Thread Starts
Fastener Strength Grade/Class
Specifications Met
Tensile Strength
Hardness
DFARS Specialty Metals
Export Control Classification Number (ECCN)
Speed Ratio
About Lead Screws and Nuts
%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e){kind=small}
Compare lead screws and nuts by the size, direction, fit, and starts of their threads.
Acme Lead Screws and Nuts
 |
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.
Lead Screws—Right-Hand Thread
 |
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 | Lg. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Fastener Strength Grade/Class | Hardness | Tensile Strength, psi | Specs. Met | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Zinc-Plated Carbon Steel | ||||||||||||||
| 3/8"-8 | Stub Acme | 12" | 1 | 1:1 | 0.125" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A730 | 000000 | ||
| 3/8"-8 | Stub Acme | 3 ft. | 1 | 1:1 | 0.125" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A420 | 00000 | ||
| 3/8"-8 | Stub Acme | 6 ft. | 1 | 1:1 | 0.125" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A240 | 00000 | ||
| 1/2"-10 | Acme | 6" | 1 | 1:1 | 0.1" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A431 | 00000 | ||
| 1/2"-10 | Acme | 12" | 1 | 1:1 | 0.1" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A735 | 00000 | ||
| 1/2"-10 | Acme | 3 ft. | 1 | 1:1 | 0.1" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A425 | 00000 | ||
| 1/2"-10 | Acme | 6 ft. | 1 | 1:1 | 0.1" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A250 | 00000 | ||
| 5/8"-8 | Acme | 6" | 1 | 1:1 | 0.125" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A441 | 00000 | ||
| 5/8"-8 | Acme | 12" | 1 | 1:1 | 0.125" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A740 | 00000 | ||
| 5/8"-8 | Acme | 3 ft. | 1 | 1:1 | 0.125" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A430 | 00000 | ||
| 5/8"-8 | Acme | 6 ft. | 1 | 1:1 | 0.125" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A260 | 00000 | ||
| 3/4"-5 | Acme | 6" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A205 | 00000 | ||
| 3/4"-5 | Acme | 12" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A745 | 00000 | ||
| 3/4"-5 | Acme | 18" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A233 | 00000 | ||
| 3/4"-5 | Acme | 3 ft. | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A435 | 00000 | ||
| 3/4"-5 | Acme | 6 ft. | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A268 | 00000 | ||
| 3/4"-6 | Acme | 6" | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A451 | 00000 | ||
| 3/4"-6 | Acme | 12" | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A750 | 00000 | ||
| 3/4"-6 | Acme | 16" | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A461 | 00000 | ||
| 3/4"-6 | Acme | 18" | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A463 | 00000 | ||
| 3/4"-6 | Acme | 3 ft. | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A440 | 00000 | ||
| 3/4"-6 | Acme | 6 ft. | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A270 | 00000 | ||
| 1"-5 | Acme | 6" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A471 | 00000 | ||
| 1"-5 | Acme | 10" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A475 | 00000 | ||
| 1"-5 | Acme | 12" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A755 | 00000 | ||
| 1"-5 | Acme | 18" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A505 | 00000 | ||
| 1"-5 | Acme | 3 ft. | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A445 | 00000 | ||
| 1"-5 | Acme | 6 ft. | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A280 | 00000 | ||
| 1"-6 | Acme | 12" | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A760 | 00000 | ||
| 1"-6 | Acme | 3 ft. | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A450 | 00000 | ||
| 1"-6 | Acme | 6 ft. | 1 | 1:1 | 0.167" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A282 | 00000 | ||
| 1 1/4"-5 | Acme | 6" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A481 | 00000 | ||
| 1 1/4"-5 | Acme | 12" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A487 | 00000 | ||
| 1 1/4"-5 | Acme | 18" | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A493 | 00000 | ||
| 1 1/4"-5 | Acme | 3 ft. | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A455 | 00000 | ||
| 1 1/4"-5 | Acme | 6 ft. | 1 | 1:1 | 0.2" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A290 | 000000 | ||
| 1 1/2"-4 | Acme | 6" | 1 | 1:1 | 0.25" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A621 | 00000 | ||
| 1 1/2"-4 | Acme | 12" | 1 | 1:1 | 0.25" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A770 | 00000 | ||
| 1 1/2"-4 | Acme | 18" | 1 | 1:1 | 0.25" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 53,000 | ASTM A108 | 93255A649 | 000000 | ||
| 1 1/2"-4 | Acme | 3 ft. | 1 | 1:1 | 0.25" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A460 | 000000 | ||
| 1 1/2"-4 | Acme | 6 ft. | 1 | 1:1 | 0.25" | Acme Class 2G | SAE Grade 2 | Rockwell B61 | 68,000 | ASTM A108 | 98941A300 | 000000 | ||
Hex Nuts—Right-Hand Thread
 |
Hex nuts fasten and position lead screw 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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Zinc-Plated Carbon Steel | |||||||||||||
| 1/4"-16 | Acme | 15/64" | 1/2" | 1 | 1:1 | 0.063" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A111 | 000000 | ||
| 3/8"-8 | Acme | 23/64" | 11/16" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A112 | 00000 | ||
| 3/8"-10 | Acme | 23/64" | 11/16" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A113 | 00000 | ||
| 3/8"-12 | Acme | 23/64" | 11/16" | 1 | 1:1 | 0.083" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A114 | 00000 | ||
| 1/2"-8 | Acme | 31/64" | 7/8" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A115 | 00000 | ||
| 1/2"-10 | Acme | 1/2" | 7/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A730 | 00000 | ||
| 5/8"-6 | Acme | 39/64" | 1 1/16" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A116 | 00000 | ||
| 5/8"-8 | Acme | 5/8" | 1 1/16" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A740 | 00000 | ||
| 3/4"-5 | Acme | 47/64" | 1 1/4" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A117 | 00000 | ||
| 3/4"-6 | Acme | 3/4" | 1 1/4" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A750 | 00000 | ||
| 3/4"-8 | Acme | 47/64" | 1 1/4" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A118 | 00000 | ||
| 7/8"-6 | Acme | 55/64" | 1 7/16" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A119 | 00000 | ||
| 1"-4 | Acme | 63/64" | 1 5/8" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A121 | 00000 | ||
| 1"-5 | Acme | 1" | 1 5/8" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A770 | 00000 | ||
| 1"-6 | Acme | 63/64" | 1 5/8" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A122 | 00000 | ||
| 1"-8 | Acme | 63/64" | 1 5/8" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A123 | 00000 | ||
| 1"-10 | Acme | 63/64" | 1 5/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A124 | 00000 | ||
| 1 1/8"-5 | Acme | 1 7/64" | 1 13/16" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A125 | 00000 | ||
| 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 | ||
| 1 3/8"-4 | Acme | 1 11/32" | 2 3/16" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A127 | 00000 | ||
| 1 1/2"-4 | Acme | 1 15/32" | 2 3/8" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A128 | 00000 | ||
| 1 1/2"-5 | Acme | 1 15/32" | 2 3/8" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A129 | 00000 | ||
| 2"-4 | Acme | 1 31/32" | 3" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A131 | 000000 | ||
| 2 1/4"-4 | Acme | 2 1/2" | 3 1/2" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A132 | 000000 | ||
| 2 1/2"-4 | Acme | 2 1/2" | 3 1/2" | 1 | 1:1 | 0.25" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A133 | 000000 | ||
Hex Nuts—Left-Hand Thread
|
Hex nuts fasten and position lead screw 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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Zinc-Plated Carbon Steel | |||||||||||||
| 1/2"-10 | Acme | 1/2" | 7/8" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A130 | 000000 | ||
| 5/8"-8 | Acme | 5/8" | 1" | 1 | 1:1 | 0.125" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A140 | 00000 | ||
| 3/4"-6 | Acme | 3/4" | 1 1/4" | 1 | 1:1 | 0.167" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A150 | 00000 | ||
| 1"-5 | Acme | 1" | 1 5/8" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A170 | 00000 | ||
| 1 1/4"-5 | Acme | 1 1/4" | 2" | 1 | 1:1 | 0.2" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A220 | 00000 | ||
