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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.
Thin-Profile Hex Nuts
About half the height of standard-profile nuts, these fit in spaces with low clearance. You can also use them as jam nuts by threading them against another hex nut to hold it in place.
Lightweight Aluminum
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6061 Aluminum—One-third the weight of steel, these nuts are commonly used in robotics, automation, and other applications that have weight limitations. They're an alternative to stainless steel for rust resistance but are not as strong.
Knurled-Head Thumb Nuts
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Get a good grip on these nuts, even with oily fingers. They have a raised, slip-resistant head, so you can tighten them by hand and make controlled adjustments. Knurled-head nuts have a smaller profile than wing nuts, so they fit in tighter spots.
Plastic
Reinforced Acetal—The best plastic for damp and wet environments, acetal won't swell or lose strength if exposed to moisture. These nuts are reinforced with an aluminum threaded insert, so they can handle more torque than other plastic nuts and won't crack during installation.
Collar | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Thread Size | Dia. | Ht. | Head Dia. | Ht. | Color | Threading | Insert Material | Pkg. Qty. | Pkg. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reinforced Acetal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 4-40 | 9/32" | 3/64" | 5/16" | 3/16" | Black | Fully Threaded | Aluminum | 10 | 000000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 6-32 | 23/64" | 3/64" | 3/8" | 7/32" | Black | Fully Threaded | Aluminum | 10 | 000000000 | 0000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 8-32 | 25/64" | 3/32" | 1/2" | 17/64" | Black | Fully Threaded | Aluminum | 10 | 000000000 | 0000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 10-24 | 31/64" | 1/8" | 5/8" | 19/64" | Black | Fully Threaded | Aluminum | 10 | 000000000 | 0000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 10-32 | 31/64" | 1/8" | 5/8" | 19/64" | Black | Fully Threaded | Aluminum | 10 | 000000000 | 0000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1/4"-20 | 35/64" | 1/16" | 1" | 23/64" | Black | Fully Threaded | Aluminum | 10 | 000000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1/4"-20 | 35/64" | 3/16" | 3/4" | 23/64" | Black | Fully Threaded | Aluminum | 10 | 000000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1/4"-28 | 35/64" | 1/16" | 1" | 23/64" | Black | Fully Threaded | Aluminum | 10 | 000000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1/4"-28 | 35/64" | 3/16" | 3/4" | 23/64" | Black | Fully Threaded | Aluminum | 10 | 000000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5/16"-18 | 41/64" | 1/8" | 1" | 27/64" | Black | Fully Threaded | Aluminum | 10 | 000000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5/16"-24 | 41/64" | 1/8" | 1" | 27/64" | Black | Fully Threaded | Aluminum | 10 | 000000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M3 × 0.5 mm | 9.1 mm | 1.2 mm | 9.6 mm | 5.6 mm | Black | Fully Threaded | Aluminum | 10 | 000000000 | 0000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M4 × 0.7 mm | 9.9 mm | 2.4 mm | 13 mm | 6.7 mm | Black | Fully Threaded | Aluminum | 10 | 000000000 | 0000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M5 × 0.8 mm | 11.5 mm | 3.2 mm | 16 mm | 7.5 mm | Black | Fully Threaded | Aluminum | 10 | 000000000 | 0000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M6 × 1 mm | 13.6 mm | 4.8 mm | 19 mm | 9.1 mm | Black | Fully Threaded | Aluminum | 10 | 000000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M6 × 1 mm | 14.3 mm | 1.6 mm | 26 mm | 9.1 mm | Black | Fully Threaded | Aluminum | 10 | 000000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M8 × 1.25 mm | 16.3 mm | 3.2 mm | 26 mm | 10.7 mm | Black | Fully Threaded | Aluminum | 10 | 000000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
