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.

Carbon steel lead screws and flanges have good machinability. Black-oxide alloy steel lead screws are hard and strong. They have mild corrosion resistance. 303 and 304 stainless steel lead screws and flanges have good corrosion resistance.

Cast iron nuts have good machinability and high strength. 360 brass nuts have excellent machinability and good corrosion resistance. 932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance. PET plastic nuts are lightweight and corrosion resistant.

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

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

Lead Screws—Right-Hand Threaded

Right-Hand Threads

Thread

Size Lg. No. of

Thread Starts Speed

Ratio Travel Distance

per Turn Accuracy for Travel

Distance per Turn Thread Fit Hardness Tensile Strength, psi Each

1018 Carbon Steel

1/4"-16 18" 1 1:1 0.063" ±0.009" per ft. Class 2C Not Rated Not Rated 99030A981 $19.80

1/4"-16 3 ft. 1 1:1 0.063" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A032 24.05

1/4"-16 6 ft. 1 1:1 0.063" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A132 48.10

1/4"-20 18" 1 1:1 0.05" ±0.009" per ft. Class 2C Not Rated Not Rated 99030A984 27.88

1/4"-20 3 ft. 1 1:1 0.05" ±0.009" per ft. Class 2C Not Rated Not Rated 99030A985 48.36

3/8"-8 3 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A326 17.64

3/8"-8 6 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A726 35.28

3/8"-10 18" 1 1:1 0.1" ±0.009" per ft. Class 2C Not Rated Not Rated 99030A988 17.16

3/8"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A327 28.12

3/8"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A727 56.24

3/8"-12 18" 1 1:1 0.083" ±0.009" per ft. Class 2C Not Rated Not Rated 99030A992 15.04

3/8"-12 3 ft. 1 1:1 0.083" ±0.009" per ft. Class 2C Not Rated Not Rated 99030A993 20.44

3/8"-12 6 ft. 1 1:1 0.083" ±0.009" per ft. Class 2C Not Rated Not Rated 99030A994 44.96

3/8"-16 18" 1 1:1 0.063" ±0.009" per ft. Class 2C Not Rated Not Rated 99030A996 10.04

3/8"-16 3 ft. 1 1:1 0.063" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A334 25.72

3/8"-16 6 ft. 1 1:1 0.063" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A734 51.44

1/2"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A005 16.80

1/2"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A105 33.60

5/8"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Not Rated Not Rated 99030A997 34.08

5/8"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Not Rated Not Rated 99030A998 62.16

5/8"-8 3 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A009 39.31

5/8"-8 6 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A109 78.62

5/8"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A328 19.48

5/8"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A728 38.96

3/4"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A013 51.65

3/4"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A113 103.30

3/4"-6 3 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A017 44.92

3/4"-6 6 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A117 89.84

3/4"-8 3 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A075 39.20

3/4"-8 6 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A175 78.40

3/4"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A030 64.91

3/4"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A957 129.82

3/4"-16 3 ft. 1 1:1 0.063" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A077 63.83

3/4"-16 6 ft. 1 1:1 0.063" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A177 127.66

7/8"-6 3 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Not Rated Not Rated 99030A966 64.80

7/8"-6 6 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Not Rated Not Rated 99030A967 118.54

1"-4 3 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A018 56.60

1"-4 6 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A118 113.20

1"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A025 39.53

1"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A125 79.06

1"-6 3 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A029 42.33

1"-6 6 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A129 84.66

1"-8 3 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A076 64.30

1"-8 6 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A176 128.60

1"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A033 41.79

1"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A133 83.58

1 1/4"-4 3 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A041 45.93

1 1/4"-4 6 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A141 91.86

1 1/4"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A045 37.00

1 1/4"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A145 74.00

1 1/2"-4 3 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A053 49.62

1 1/2"-4 6 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A153 99.24

1 1/2"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A031 96.08

1 1/2"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A131 192.16

2"-2 3 ft. 1 1:1 0.5" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A008 334.90

2"-2 6 ft. 1 1:1 0.5" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A108 669.80

2"-4 3 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A057 105.28

2"-4 6 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A157 210.56

2"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A023 204.47

2"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A123 408.94

2 1/2"-3 3 ft. 1 1:1 0.333" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A014 277.82

2 1/2"-3 6 ft. 1 1:1 0.333" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A114 555.64

2 1/2"-4 3 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A065 240.27

2 1/2"-4 6 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 126 64,000 99030A165 480.54

Black-Oxide 4140 Alloy Steel

3/8"-8 3 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A605 26.69

3/8"-8 6 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A004 53.38

3/8"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A611 41.21

3/8"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A010 82.42

3/8"-12 18" 1 1:1 0.083" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A303 23.00

3/8"-12 3 ft. 1 1:1 0.083" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A615 61.80

3/8"-12 6 ft. 1 1:1 0.083" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A104 123.60

3/8"-16 3 ft. 1 1:1 0.063" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A619 45.05

3/8"-16 6 ft. 1 1:1 0.063" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A016 90.10

1/2"-10 18" 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A305 27.22

1/2"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A625 41.63

1/2"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A106 83.26

5/8"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A634 54.61

5/8"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A108 109.22

5/8"-8 18" 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A306 33.56

5/8"-8 3 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A633 72.69

5/8"-8 6 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A109 145.38

5/8"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A631 78.41

5/8"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A024 156.82

3/4"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A635 96.68

3/4"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A112 193.36

3/4"-6 18" 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A307 55.87

3/4"-6 3 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A637 64.20

3/4"-6 6 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A113 128.40

3/4"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A639 105.80

3/4"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A114 211.60

1"-4 3 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A641 87.80

1"-4 6 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A118 175.60

1"-5 18" 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A308 46.85

1"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A643 118.65

1"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A119 237.30

1"-6 3 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A645 127.89

1"-6 6 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A120 255.78

1"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A647 131.99

1"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A121 263.98

1 1/4"-4 3 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A649 111.46

1 1/4"-4 6 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A123 222.92

1 1/4"-5 18" 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A309 52.14

1 1/4"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A651 108.53

1 1/4"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A124 217.06

1 1/2"-4 18" 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A401 80.88

1 1/2"-4 3 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A653 125.53

1 1/2"-4 6 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A127 251.06

1 1/2"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A655 135.38

1 1/2"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A128 270.76

2"-4 18" 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A405 139.56

2"-4 3 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A657 258.83

2"-4 6 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 271 125,000 98940A132 517.66

304 Stainless Steel

1/4"-16 18" 1 1:1 0.063" ±0.009" per ft. Class 2C Not Rated Not Rated 98980A965 29.77

1/4"-16 3 ft. 1 1:1 0.063" ±0.009" per ft. Class 2C Not Rated Not Rated 98980A966 52.11

1/4"-16 6 ft. 1 1:1 0.063" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A209 112.03

1/4"-20 18" 1 1:1 0.05" ±0.009" per ft. Class 2C Not Rated Not Rated 98980A967 54.23

1/4"-20 3 ft. 1 1:1 0.05" ±0.009" per ft. Class 2C Not Rated Not Rated 98980A968 94.74

1/4"-20 6 ft. 1 1:1 0.05" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A211 123.37

3/8"-8 3 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A114 37.44

3/8"-8 6 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A320 74.88

3/8"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A120 40.93

3/8"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A335 81.86

3/8"-12 18" 1 1:1 0.083" ±0.009" per ft. Class 2C Not Rated Not Rated 98980A976 26.84

3/8"-12 3 ft. 1 1:1 0.083" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A124 51.82

3/8"-12click to learn more about 3/8"-12 6 ft. 1 1:1 0.083" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A345 103.64

3/8"-16 18" 1 1:1 0.063" ±0.009" per ft. Class 2C Not Rated Not Rated 98980A977 29.11

3/8"-16 3 ft. 1 1:1 0.063" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A126 39.30

3/8"-16 6 ft. 1 1:1 0.063" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A350 78.60

1/2"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A132 42.35

1/2"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A370 84.70

5/8"-8 3 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A140 44.48

5/8"-8 6 ft. 1 1:1 0.125" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A385 88.96

5/8"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A138 70.37

5/8"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A387 140.74

3/4"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A142 73.39

3/4"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A390 146.78

3/4"-6 3 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A144 74.62

3/4"-6 6 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A393 149.24

3/4"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A146 80.65

3/4"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A395 161.30

1"-4 3 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A148 119.59

1"-4 6 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A405 239.18

1"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A150 95.58

1"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A410 191.16

1"-6 3 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A111 117.79

1"-6 6 ft. 1 1:1 0.167" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A415 235.58

1"-10 3 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A243 164.26

1"-10 6 ft. 1 1:1 0.1" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A420 328.52

1 1/4"-5 3 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A371 179.15

1 1/4"-5 6 ft. 1 1:1 0.2" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A430 358.30

1 1/2"-4 3 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A418 260.31

1 1/2"-4 6 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A435 520.62

2"-4 3 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A408 382.97

2"-4 6 ft. 1 1:1 0.25" ±0.009" per ft. Class 2C Brinell 150 72,000 98980A445 765.94