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About Hex Nuts
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Choose a hex nut with the right profile, material, and strength for your application.
Hex Nuts
Plastic
 |  |
High-Strength High-Temperature PEEK—A close alternative to metal nuts, these offer the best strength of all our plastic nuts to stand up to high-stress applications. They also won't degrade when exposed to high heat, so they are a good choice for joining components on circuit boards and other electrical applications. They aren't very impact resistant, however, and may crack or dent if subjected to hard bumps and vibrations.
Temp., ° F | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Wd. | Ht. | Min. | Max. | Certificate Type | Choose a Color | Pkg. Qty. | Pkg. | |||
High-Strength High-Temperature PEEK | |||||||||||
| 4-40 | 1/4" | 3/32" | -50 | 550 | — | Black, Brown | 1 | 98886A819 | 00000 | ||
| 6-32 | 5/16" | 7/64" | -50 | 550 | — | Black, Brown | 1 | 98886A822 | 0000 | ||
| 8-32 | 11/32" | 1/8" | -50 | 550 | — | Black, Brown | 1 | 98886A823 | 0000 | ||
| 8-32 | 11/32" | 1/8" | -50 | 550 | Material Certificate | Black, Brown | 1 | 98886A200 | 0000 | ||
| 10-32 | 3/8" | 1/8" | -50 | 550 | — | Black, Brown | 1 | 98886A816 | 0000 | ||
| 1/4"-20 | 7/16" | 3/16" | -50 | 550 | — | Black, Brown | 1 | 98886A813 | 0000 | ||
| 1/4"-28 | 7/16" | 3/16" | -50 | 550 | — | Black | 1 | 98886A731 | 0000 | ||
| 5/16"-18 | 9/16" | 7/32" | -50 | 550 | — | Black, Brown | 1 | 98886A820 | 0000 | ||
| 5/16"-24 | 9/16" | 7/32" | -50 | 550 | — | Black | 1 | 98886A733 | 0000 | ||
| 3/8"-16 | 5/8" | 1/4" | -50 | 550 | — | Black, Brown | 1 | 98886A817 | 0000 | ||
| 3/8"-24 | 5/8" | 1/4" | -50 | 550 | Material Certificate | Black | 1 | 98886A735 | 0000 | ||
| 1/2"-13 | 45/64" | 1/4" | -50 | 550 | — | Black | 1 | 98886A736 | 0000 | ||
| 1/2"-20 | 45/64" | 1/4" | -50 | 550 | — | Black | 1 | 98886A737 | 0000 | ||
| M3 × 0.5 mm | 4.8 mm | 1.4 mm | -50 | 550 | — | Black, Brown | 1 | 98886A826 | 0000 | ||
| M4 × 0.7 mm | 6.8 mm | 2 mm | -50 | 550 | — | Black, Brown | 1 | 98886A827 | 0000 | ||
| M5 × 0.8 mm | 7.8 mm | 2.5 mm | -50 | 550 | — | Black | 1 | 98886A740 | 0000 | ||
| M6 × 1 mm | 9.9 mm | 3.2 mm | -50 | 550 | — | Black | 1 | 98886A741 | 0000 | ||
| M8 × 1.25 mm | 12.85 mm | 4 mm | -50 | 550 | — | Black | 1 | 98886A742 | 0000 | ||
| M10 × 1.5 mm | 15.85 mm | 6.3 mm | -50 | 550 | — | Black | 1 | 98886A743 | 0000 | ||
| M12 × 1.75 mm | 17.9 mm | 6.3 mm | -50 | 550 | — | Black | 1 | 98886A744 | 0000 | ||
Metric Fast-Travel Ultra-Precision Lead Screws and Nuts
 |  |  |
Style C | Style D |
Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. To ensure compatibility, select components that have the same thread size and number of thread starts.
Externally Threaded Nuts—Right-Hand Thread
|
Style C |
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.
External Thread | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Wd. | Ht. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn, mm | Size | Lg. | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | Each | |||
PEEK | |||||||||||||||||
| C | M2 × 0.4 mm | 5/16" | 0.22" | 0.197" | Metric Rounded Trapezoidal | 2:1 | 2 | 0.75 | M5 × 0.8 mm | 9/64" | Durometer 83D | Not Rated | 2 | 4537N161 | 000000 | ||
| C | M2 × 0.4 mm | 5/16" | 0.22" | 0.197" | Metric Rounded Trapezoidal | 4:1 | 4 | 1.5 | M5 × 0.8 mm | 9/64" | Durometer 83D | Not Rated | 2 | 4537N162 | 00000 | ||
| C | M2 × 0.4 mm | 5/16" | 0.22" | 0.197" | Metric Rounded Trapezoidal | 8:1 | 8 | 3 | M5 × 0.8 mm | 9/64" | Durometer 83D | Not Rated | 2 | 4537N163 | 00000 | ||
| C | M3 × 0.5 mm | 13/32" | 0.311" | 0.276" | Metric Rounded Trapezoidal | 2:1 | 2 | 1 | M7 × 0.75 mm | 5/32" | Durometer 83D | Not Rated | 4 | 4537N164 | 00000 | ||
| C | M3 × 0.5 mm | 13/32" | 0.311" | 0.276" | Metric Rounded Trapezoidal | 6:1 | 6 | 3 | M7 × 0.75 mm | 5/32" | Durometer 83D | Not Rated | 4 | 4537N165 | 00000 | ||
| C | M4 × 1 mm | 1/2" | 0.402" | 0.354" | Metric Rounded Trapezoidal | 4:1 | 4 | 4 | M9 × 1 mm | 13/64" | Durometer 83D | Not Rated | 4 | 4537N166 | 00000 | ||
| C | M4 × 1 mm | 1/2" | 0.402" | 0.354" | Metric Rounded Trapezoidal | 8:1 | 8 | 8 | M9 × 1 mm | 13/64" | Durometer 83D | Not Rated | 10 | 4537N167 | 00000 | ||
Flange Nuts—Right-Hand Thread
|  |
Style D | Style D |
Wear-Compensating Internal O-Ring—Flange nuts with a wear-compensating internal O-ring resist backlash to keep the nuts in place and maintain a tight fit even when their threads begin to wear. They’re often used in 3D printing and robotic applications.
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.
Flange | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Dia. | Wd. | Ht. | Thk. | Thread Type | Speed Ratio | Bolt Circle Dia. | No. of Thread Starts | Travel Distance per Turn, mm | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | No. of Mounting Holes | Each | |||
PEEK | |||||||||||||||||||
| D | M2 × 0.4 mm | 9/32" | 0.209" | 15/32" | 15/64" | 5/64" | Metric Rounded Trapezoidal | 2:1 | 11/32" | 2 | 0.75 | Durometer 83D | Not Rated | 2 | 2 | 4537N181 | 000000 | ||
| D | M2 × 0.4 mm | 9/32" | 0.209" | 15/32" | 15/64" | 5/64" | Metric Rounded Trapezoidal | 4:1 | 11/32" | 4 | 1.5 | Durometer 83D | Not Rated | 2 | 2 | 4537N182 | 00000 | ||
| D | M2 × 0.4 mm | 9/32" | 0.209" | 15/32" | 15/64" | 5/64" | Metric Rounded Trapezoidal | 8:1 | 11/32" | 8 | 3 | Durometer 83D | Not Rated | 2 | 2 | 4537N183 | 00000 | ||
| D | M3 × 0.5 mm | 21/64" | 0.295" | 39/64" | 5/16" | 3/32" | Metric Rounded Trapezoidal | 2:1 | 15/32" | 2 | 1 | Durometer 83D | Not Rated | 4 | 2 | 4537N184 | 00000 | ||
| D | M3 × 0.5 mm | 21/64" | 0.295" | 39/64" | 5/16" | 3/32" | Metric Rounded Trapezoidal | 6:1 | 15/32" | 6 | 3 | Durometer 83D | Not Rated | 4 | 2 | 4537N185 | 00000 | ||
| D | M3 × 0.5 mm | 21/64" | 0.295" | 39/64" | 5/16" | 3/32" | Metric Rounded Trapezoidal | 12:1 | 15/32" | 12 | 6 | Durometer 83D | Not Rated | 4 | 2 | 4537N186 | 00000 | ||
| D | M4 × 1 mm | 13/32" | 0.354" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 4:1 | 19/32" | 4 | 4 | Durometer 83D | Not Rated | 10 | 2 | 4537N187 | 00000 | ||
| D | M4 × 1 mm | 13/32" | 0.354" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 8:1 | 19/32" | 8 | 8 | Durometer 83D | Not Rated | 10 | 2 | 4537N188 | 00000 | ||
PEEK with Wear-Compensating Internal O-Ring | |||||||||||||||||||
| D | M2 × 0.4 mm | 5/16" | 0.228" | 15/32" | 15/64" | 5/64" | Metric Rounded Trapezoidal | 2:1 | 11/32" | 2 | 0.75 | Durometer 83D | Not Rated | 1 | 2 | 4537N201 | 00000 | ||
| D | M2 × 0.4 mm | 5/16" | 0.228" | 15/32" | 15/64" | 5/64" | Metric Rounded Trapezoidal | 4:1 | 11/32" | 4 | 1.5 | Durometer 83D | Not Rated | 1 | 2 | 4537N202 | 00000 | ||
| D | M2 × 0.4 mm | 5/16" | 0.228" | 15/32" | 15/64" | 5/64" | Metric Rounded Trapezoidal | 8:1 | 11/32" | 8 | 3 | Durometer 83D | Not Rated | 1 | 2 | 4537N203 | 00000 | ||
| D | M3 × 0.5 mm | 25/64" | 0.315" | 39/64" | 5/16" | 3/32" | Metric Rounded Trapezoidal | 2:1 | 15/32" | 2 | 1 | Durometer 83D | Not Rated | 2 | 2 | 4537N204 | 00000 | ||
| D | M3 × 0.5 mm | 25/64" | 0.315" | 39/64" | 5/16" | 3/32" | Metric Rounded Trapezoidal | 6:1 | 15/32" | 6 | 3 | Durometer 83D | Not Rated | 2 | 2 | 4537N205 | 00000 | ||
| D | M3 × 0.5 mm | 25/64" | 0.315" | 39/64" | 5/16" | 3/32" | Metric Rounded Trapezoidal | 12:1 | 15/32" | 12 | 6 | Durometer 83D | Not Rated | 2 | 2 | 4537N206 | 00000 | ||
| D | M4 × 1 mm | 31/64" | 0.406" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 4:1 | 19/32" | 4 | 4 | Durometer 83D | Not Rated | 4 | 2 | 4537N207 | 00000 | ||
| D | M4 × 1 mm | 31/64" | 0.406" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 8:1 | 19/32" | 8 | 8 | Durometer 83D | Not Rated | 4 | 2 | 4537N208 | 00000 | ||
Metric Ultra-Precision Lead Screws and Nuts
 |  |  |
Style B | Style C |
Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these provide increased nut life and more reliable movement in automated systems. 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, thread type, thread size, thread pitch, and number of thread starts.
Externally Threaded Nuts—Right-Hand Thread
|
Style B |
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.
External Thread | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Wd. | Ht. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn, mm | Size | Lg. | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | Each | |||
PEEK | |||||||||||||||||
| B | M2 × 0.4 mm | 5/16" | 0.22" | 0.197" | Metric Rounded Trapezoidal | 1:1 | 1 | 0.375 | M5 × 0.8 mm | 9/64" | Durometer 83D | Not Rated | 2 | 90500A220 | 000000 | ||
| B | M3 × 0.5 mm | 13/32" | 0.311" | 0.276" | Metric Rounded Trapezoidal | 1:1 | 1 | 0.5 | M7 × 0.75 mm | 5/32" | Durometer 83D | Not Rated | 5 | 90500A230 | 00000 | ||
| B | M4 × 1 mm | 1/2" | 0.402" | 0.354" | Metric Rounded Trapezoidal | 1:1 | 1 | 1 | M9 × 1 mm | 13/64" | Durometer 83D | Not Rated | 10 | 90500A240 | 00000 | ||
Flange Nuts—Right-Hand Thread
| |
Style C | Style C |
Wear-Compensating Internal O-Ring—Flange nuts with wear-compensating internal O-ring maintain a tight fit even when their threads begin to wear. They resist backlash to maintain accuracy over time, which is important in positioning applications such as 3D printing and robotics.
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.
Flange | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Dia. | Wd. | Ht. | Thk. | Thread Type | Speed Ratio | Bolt Circle Dia. | No. of Thread Starts | Travel Distance per Turn, mm | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | No. of Mounting Holes | Each | |||
PEEK | |||||||||||||||||||
| C | M2 × 0.4 mm | 9/32" | 0.209" | 15/32" | 15/64" | 5/64" | Metric Rounded Trapezoidal | 1:1 | 11/32" | 1 | 0.375 | Durometer 83D | Not Rated | 2 | 2 | 90500A250 | 000000 | ||
| C | M3 × 0.5 mm | 21/64" | 0.295" | 39/64" | 5/16" | 3/32" | Metric Rounded Trapezoidal | 1:1 | 15/32" | 1 | 0.5 | Durometer 83D | Not Rated | 5 | 2 | 90500A260 | 00000 | ||
| C | M4 × 1 mm | 13/32" | 0.354" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 1:1 | 19/32" | 1 | 1 | Durometer 83D | Not Rated | 10 | 2 | 90500A270 | 00000 | ||
PEEK with Wear-Compensating Internal O-Ring | |||||||||||||||||||
| C | M2 × 0.4 mm | 5/16" | 0.228" | 15/32" | 15/64" | 5/64" | Metric Rounded Trapezoidal | 1:1 | 11/32" | 1 | 0.375 | Durometer 83D | Not Rated | 1 | 2 | 90500A280 | 000000 | ||
| C | M3 × 0.5 mm | 25/64" | 0.315" | 39/64" | 5/16" | 3/32" | Metric Rounded Trapezoidal | 1:1 | 15/32" | 1 | 0.5 | Durometer 83D | Not Rated | 2 | 2 | 90500A290 | 000000 | ||
| C | M4 × 1 mm | 31/64" | 0.406" | 3/4" | 13/32" | 1/8" | Metric Rounded Trapezoidal | 1:1 | 19/32" | 1 | 1 | Durometer 83D | Not Rated | 5 | 2 | 90500A310 | 000000 | ||
Precision Acme 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, thread size, and number of thread starts.
Round Nuts—Right-Hand Thread
 |
PEEK—PEEK plastic nuts handle twice as much heat as PET and acetal plastic nuts. They have good chemical resistance and excellent corrosion resistance.
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 | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PEEK | |||||||||||||||
| 1/2"-10 | 1" | 1.5" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Not Rated | 16,000 | 5,650 | -40 to 525 | 90493A250 | 0000000 | ||
Externally Threaded Nuts—Right-Hand Thread
 |
Combine externally threaded nuts with a flange to create a custom flange nut.
PEEK—PEEK plastic nuts handle twice as much heat as PET and acetal plastic nuts. They have good chemical resistance and excellent corrosion resistance.
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.
External Thread | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Size | Lg. | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | |||
PEEK | |||||||||||||||||
| 1/4"-20 | 5/8" | 0.688" | Acme | 1:1 | 1 | 0.05" | 9/16"-18 | 3/8" | Acme Class 2C | Not Rated | 16,000 | 150 | -40 to 525 | 90493A150 | 0000000 | ||
| 1/2"-10 | 3/4" | 1.125" | Acme | 1:1 | 1 | 0.1" | 15/16"-16 | 1/2" | Acme Class 2C | Not Rated | 16,000 | 620 | -40 to 525 | 90493A160 | 000000 | ||
| 3/4"-5 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.2" | 1"-18 | 1/2" | Acme Class 2C | Not Rated | 16,000 | 1,400 | -40 to 525 | 90493A170 | 000000 | ||
| 3/4"-6 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.166" | 1"-18 | 1/2" | Acme Class 2C | Not Rated | 16,000 | 1,400 | -40 to 525 | 90493A180 | 000000 | ||
| 3/4"-10 | 1 1/4" | 1.125" | Acme | 1:1 | 1 | 0.1" | 1"-18 | 1/2" | Acme Class 2C | Not Rated | 16,000 | 1,400 | -40 to 525 | 90493A190 | 000000 | ||
| 1"-4 | 1 1/2" | 1.5" | Acme | 1:1 | 1 | 0.25" | 1 3/8"-16 | 1/2" | Acme Class 2C | Not Rated | 16,000 | 2,500 | -40 to 525 | 90493A210 | 000000 | ||
| 1"-5 | 1 1/2" | 1.5" | Acme | 1:1 | 1 | 0.2" | 1 3/8"-16 | 1/2" | Acme Class 2C | Not Rated | 16,000 | 2,500 | -40 to 525 | 90493A220 | 000000 | ||
| 1"-10 | 1 1/2" | 1.5" | Acme | 1:1 | 1 | 0.1" | 1 3/8"-16 | 1/2" | Acme Class 2C | Not Rated | 16,000 | 2,500 | -40 to 525 | 90493A230 | 000000 | ||
| 1 1/4"-5 | 1 3/4" | 2.125" | Acme | 1:1 | 1 | 0.2" | 1 31/32"-18 | 13/16" | Acme Class 2C | Not Rated | 16,000 | 3,900 | -40 to 525 | 90493A240 | 000000 | ||
Flanges
 |
 |
Flange Thread Size | Flange Dia. | Flange Thk. | Bolt Circle Dia. | Flange Hardness | Each | |||
|---|---|---|---|---|---|---|---|---|
1117 Carbon Steel | ||||||||
| 1 3/8"-16 | 2 49/64" | 33/64" | 2 17/64" | Brinell 156 | 95082A644 | 000000 | ||
| 1 31/32"-18 | 4 13/64" | 53/64" | 3 7/16" | Brinell 156 | 95082A645 | 00000 | ||
Black-Oxide 1117 Carbon Steel | ||||||||
| 9/16"-18 | 1 39/64" | 13/32" | 1 1/8" | Brinell 135 | 1329K101 | 00000 | ||
| 15/16"-16 | 2 39/64" | 17/32" | 2 3/32" | Brinell 135 | 1329K102 | 00000 | ||
| 1 3/8"-16 | 2 49/64" | 33/64" | 2 17/64" | Brinell 135 | 1329K104 | 00000 | ||
| 1 31/32"-18 | 4 13/64" | 53/64" | 3 7/16" | Brinell 135 | 1329K105 | 00000 | ||
1215 Carbon Steel | ||||||||
| 9/16"-18 | 1 39/64" | 13/32" | 1 1/8" | Not Rated | 95082A641 | 00000 | ||
| 15/16"-16 | 2 5/8" | 17/32" | 2 3/32" | Not Rated | 95082A642 | 00000 | ||
| 1"-18 | 2 5/8" | 17/32" | 2 3/32" | Not Rated | 95082A643 | 00000 | ||
303 Stainless Steel | ||||||||
| 9/16"-18 | 1 39/64" | 13/32" | 1 1/8" | Brinell 140 | 1329K11 | 00000 | ||
| 15/16"-16 | 2 5/8" | 17/32" | 2 3/32" | Brinell 140 | 1329K12 | 00000 | ||
| 1"-18 | 2 5/8" | 17/32" | 2 3/32" | Brinell 140 | 1329K13 | 00000 | ||
| 1 3/8"-16 | 2 49/64" | 33/64" | 2 17/64" | Brinell 140 | 1329K14 | 00000 | ||
| 1 31/32"-18 | 4 13/64" | 53/64" | 3 7/16" | Brinell 140 | 1329K15 | 000000 | ||
