About Shaft Collars
Shaft collars are useful for holding and positioning components on a shaft. They can also serve as mechanical stops and stroke limiters.
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About Nuts, Materials, and Finishes
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About Selecting Shock Absorbers
To select the best shock absorber for your application, you need to find the energy capacity your application requires. Use this formula to calculate the energy capacity required to stop a horizontal-moving load. For example, if you have a 250-lb. load moving at 25 inches per second, your calculation is (250 lbs. ÷ 772) × 252 = 202.4 in.-lbs. energy capacity.
Note: Choose a shock absorber with a higher energy capacity than you calculated. Factors such as driving force or an inclined surface will increase the energy capacity required.
Energy Capacity (in.-lbs.) = (Weight, lbs./772) × Velocity2 (in. per second)
Bearing Retaining Locknuts
![](/prerenderstable/mvPRE/contents/gfx/imagecache/355/3552n15-1584034381-p9@halfx_637196131868957373.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/634/6343k33matte-steelpositive_right_negative_top_flop15_1583534736_951@halfx_637191100118913192.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/634/6343k95polished-steelpositive_right_negative_top_flop15_1583762940_341@halfx_637193418492000215.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/355/3552n14-@halfx_637196147468327481.png?ver=imagenotfound)
With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place. They come as one piece, so you can easily clamp them onto your shaft or spindle. But, since they aren’t made entirely of metal, they don’t stand up to heat as well as all-metal locknuts. Slots in their sides mean you can tighten and loosen them with a spanner wrench or spanner socket. Their face is also chamfered to help keep the size and weight of your assembly at a minimum. All meet international standards for bearing locknut dimensions.
When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.
All carbon steel locknuts are strong and resist wear, though they don’t stand up to corrosion as well as stainless steel locknuts. Zinc-plated steel locknuts resist rusting from some moisture, but you shouldn’t use them with salt water or chemicals.
303 stainless steel locknuts resist corrosion better than steel locknuts but aren’t as strong. They withstand washdowns and chemicals.
For technical drawings and 3-D models, click on a part number.
Locknuts | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread | Spanner Sockets | |||||||||
Size | Pitch, mm | Spacing | OD | Wd., mm | Insert Max. Temp., °F | Specifications Met | Each | Each | ||
Carbon Steel | ||||||||||
Chamfered Face | ||||||||||
M10 | 0.75 | Extra Fine | 18mm | 7 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 0000000 |
M12 | 1 | Extra Fine | 22mm | 8 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M15 | 1 | Extra Fine | 25mm | 8.5 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M17 | 1 | Extra Fine | 28mm | 9 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 000000 |
M20 | 1 | Extra Fine | 32mm | 10 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M22 | 1 | Extra Fine | 34mm | 10.5 | 160° | ISO 2982-2 | 0000000 | 00000 | 000000 | 00 |
M25 | 1.5 | Extra Fine | 38mm | 11 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M28 | 1.5 | Extra Fine | 42mm | 11 | 160° | ISO 2982-2 | 00000000 | 00000 | 000000 | 00 |
M30 | 1.5 | Extra Fine | 45mm | 11.5 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M32 | 1.5 | Extra Fine | 48mm | 11.5 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 000000 |
M35 | 1.5 | Extra Fine | 52mm | 12 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M40 | 1.5 | Extra Fine | 58mm | 12 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 000000 |
M45 | 1.5 | Extra Fine | 65mm | 13 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 000000 |
M50 | 1.5 | Extra Fine | 70mm | 13 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M55 | 2 | Extra Fine | 75mm | 15 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 000000 |
M60 | 2 | Extra Fine | 80mm | 15 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 000000 |
M65 | 2 | Extra Fine | 85mm | 15 | 160° | ISO 2982-2 | 00000000 | 00000 | 000000 | 00 |
M70 | 2 | Extra Fine | 92mm | 17 | 160° | ISO 2982-2 | 00000000 | 00000 | 000000 | 00 |
M75 | 2 | Extra Fine | 98mm | 17 | 160° | ISO 2982-2 | 00000000 | 00000 | 000000 | 00 |
M80 | 2 | Extra Fine | 105mm | 17 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 00000000 |
M85 | 2 | Extra Fine | 110mm | 18 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 00000000 |
M95 | 2 | Extra Fine | 125mm | 20 | 160° | ISO 2982-2 | 00000000 | 000000 | 000000 | 00 |
M100 | 2 | Extra Fine | 130mm | 21 | 160° | ISO 2982-2 | 00000000 | 000000 | 00000000 | 00000000 |
M120 | 2 | Extra Fine | 155mm | 23 | 160° | ISO 2982-2 | 00000000 | 000000 | 000000 | 00 |
Zinc-Plated Carbon Steel | ||||||||||
Chamfered Face | ||||||||||
M10 | 0.75 | Extra Fine | 18mm | 7.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M10 | 1 | Extra Fine | 18mm | 7.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M10 | 1.5 | Coarse | 18mm | 7.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M12 | 1 | Extra Fine | 21mm | 7.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M12 | 1.5 | Fine | 21mm | 9 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M14 | 1 | Extra Fine | 24mm | 8.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M14 | 1.5 | Fine | 24mm | 10.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M15 | 1 | Extra Fine | 24mm | 8.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M16 | 1 | Extra Fine | 28mm | 8.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M16 | 1.5 | Fine | 28mm | 10.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M17 | 1 | Extra Fine | 28mm | 8.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M18 | 1 | Extra Fine | 28mm | 8.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M18 | 1.5 | Fine | 28mm | 10.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M20 | 1 | Extra Fine | 32mm | 9.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M20 | 1.5 | Extra Fine | 32mm | 9.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M22 | 1 | Extra Fine | 38mm | 10 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M22 | 1.5 | Fine | 38mm | 12.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M24 | 1.5 | Extra Fine | 38mm | 10.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M25 | 1.5 | Extra Fine | 38mm | 10.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M27 | 1.5 | Extra Fine | 44mm | 11 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M28 | 1.5 | Extra Fine | 44mm | 11 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M30 | 1.5 | Extra Fine | 44mm | 11 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M32 | 1.5 | Extra Fine | 50mm | 11 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M34 | 1.5 | Extra Fine | 50mm | 11 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M35 | 1.5 | Extra Fine | 50mm | 11 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M38 | 1.5 | Extra Fine | 53mm | 11.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M40 | 1.5 | Extra Fine | 56mm | 12 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M42 | 1.5 | Extra Fine | 62mm | 15 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M45 | 1.5 | Extra Fine | 62mm | 12 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M48 | 1.5 | Extra Fine | 64mm | 13.5 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M50 | 1.5 | Extra Fine | 68mm | 13 | 210° | __ | 0000000 | 00000 | 000000 | 00 |
M52 | 1.5 | Extra Fine | 75mm | 13.5 | 210° | __ | 0000000 | 000000 | 000000 | 00 |
M55 | 2 | Extra Fine | 75mm | 13.5 | 210° | __ | 0000000 | 000000 | 000000 | 00 |
M60 | 2 | Extra Fine | 80mm | 13.5 | 210° | __ | 0000000 | 000000 | 000000 | 00 |
M65 | 2 | Extra Fine | 85mm | 14.5 | 210° | __ | 0000000 | 000000 | 000000 | 00 |
M70 | 2 | Extra Fine | 92mm | 14.5 | 210° | __ | 0000000 | 000000 | 000000 | 00 |
M75 | 2 | Extra Fine | 98mm | 15.5 | 210° | __ | 0000000 | 000000 | 000000 | 00 |
M80 | 2 | Extra Fine | 105mm | 16.5 | 210° | __ | 0000000 | 000000 | 000000 | 00 |
M85 | 2 | Extra Fine | 110mm | 17.5 | 210° | __ | 0000000 | 000000 | 000000 | 00 |
M90 | 2 | Extra Fine | 120mm | 17.5 | 210° | __ | 0000000 | 000000 | 000000 | 00 |
M95 | 2 | Extra Fine | 125mm | 18.5 | 210° | __ | 0000000 | 000000 | 000000 | 00 |
M100 | 2 | Extra Fine | 130mm | 19.5 | 210° | __ | 0000000 | 000000 | 000000 | 00 |
303 Stainless Steel | ||||||||||
Chamfered Face | ||||||||||
M10 | 0.75 | Extra Fine | 18mm | 7 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M12 | 1 | Extra Fine | 22mm | 8 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M15 | 1 | Extra Fine | 25mm | 8.5 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M17 | 1 | Extra Fine | 28mm | 9 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 000000 |
M20 | 1 | Extra Fine | 32mm | 10 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M22 | 1 | Extra Fine | 34mm | 10.5 | 160° | ISO 2982-2 | 0000000 | 00000 | 000000 | 00 |
M25 | 1.5 | Extra Fine | 38mm | 11 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M28 | 1.5 | Extra Fine | 42mm | 11 | 160° | ISO 2982-2 | 00000000 | 00000 | 000000 | 00 |
M30 | 1.5 | Extra Fine | 45mm | 11.5 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M32 | 1.5 | Extra Fine | 48mm | 11.5 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 000000 |
M35 | 1.5 | Extra Fine | 52mm | 12 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M40 | 1.5 | Extra Fine | 58mm | 12 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 000000 |
M45 | 1.5 | Extra Fine | 65mm | 13 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 000000 |
M50 | 1.5 | Extra Fine | 70mm | 13 | 160° | ISO 2982-2 | 0000000 | 00000 | 00000000 | 000000 |
M55 | 2 | Extra Fine | 75mm | 15 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 000000 |
M60 | 2 | Extra Fine | 80mm | 15 | 160° | ISO 2982-2 | 00000000 | 00000 | 00000000 | 000000 |
M65 | 2 | Extra Fine | 85mm | 15 | 160° | ISO 2982-2 | 00000000 | 00000 | 000000 | 00 |
M70 | 2 | Extra Fine | 92mm | 17 | 160° | ISO 2982-2 | 00000000 | 000000 | 000000 | 00 |
Bearing Retaining Nuts
![](/prerenderstable/mvPRE/contents/gfx/imagecache/355/3554n12matte-steelnegative_right_positive_front_flop15_1583537257_363@halfx_637191125192954783.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/356/3564n12matte-steelnegative_right_positive_front_flop15_1583539522_841@halfx_637191147819275040.png?ver=imagenotfound)
Often paired with spring lock washers to strengthen their hold, these retaining nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle. They have slotted sides, so you can tighten and loosen them with a spanner wrench or spanner socket.
Use stepped-face retaining nuts with DIN 462 spring lock washers. You can also use them in pairs or with other bearing retaining nuts as jam nuts. For the nut closer to the bearing, position the stepped face towards the bearing. All meet DIN standards for bearing lockout dimensions.
Chamfered-face retaining nuts weigh less and produce less heat than stepped-face nuts. Some meet ISO 2982 (formerly DIN 981), an international standard for bearing locknut dimensions. Their sizes correspond to SKF KM series. Use them with DIN 5406 spring lock washers.
Carbon steel retaining nuts are strong and resist wear.
For technical drawings and 3-D models, click on a part number.
Nuts | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread | Optional Washers | Spanner Sockets | ||||||||||
Size | Pitch, mm | Spacing | OD | Wd., mm | Specifications Met | For Lock Washer Specifications Met | Each | Each | Each | |||
Carbon Steel | ||||||||||||
Stepped Face | ||||||||||||
M8 | 1 | Fine | 20mm | 5 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 00000 | 000000 | 00 |
M12 | 1.5 | Fine | 28mm | 6 | DIN 1804 | DIN 462 | 0000000 | 0000 | 000000000 | 0000 | 000000 | 00 |
M14 | 1.5 | Fine | 30mm | 7 | DIN 1804 | DIN 462 | 0000000 | 0000 | 000000000 | 0000 | 000000 | 00 |
M16 | 1.5 | Fine | 32mm | 7 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M18 | 1.5 | Fine | 34mm | 8 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M20 | 1.5 | Extra Fine | 36mm | 8 | DIN 1804 | DIN 462 | 0000000 | 0000 | 000000000 | 0000 | 000000 | 00 |
M24 | 1.5 | Extra Fine | 42mm | 9 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M26 | 1.5 | Extra Fine | 45mm | 10 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000 | 00 | 000000 | 00 |
M28 | 1.5 | Extra Fine | 50mm | 10 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M30 | 1.5 | Extra Fine | 50mm | 10 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M32 | 1.5 | Extra Fine | 52mm | 11 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M35 | 1.5 | Extra Fine | 55mm | 11 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M38 | 1.5 | Extra Fine | 58mm | 11 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M40 | 1.5 | Extra Fine | 62mm | 12 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M42 | 1.5 | Extra Fine | 62mm | 12 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M45 | 1.5 | Extra Fine | 68mm | 12 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M50 | 1.5 | Extra Fine | 75mm | 13 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M55 | 1.5 | Extra Fine | 80mm | 13 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000 | 00 | 000000 | 00 |
M60 | 1.5 | Extra Fine | 90mm | 13 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000 | 00 | 000000 | 00 |
M65 | 1.5 | Extra Fine | 95mm | 14 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000 | 00 | 000000 | 00 |
Chamfered Face | ||||||||||||
M10 | 0.75 | Extra Fine | 18mm | 4 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 0000 | 000000000 | 0000 | 00000000 | 0000000 |
M12 | 1 | Extra Fine | 22mm | 4 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 0000 | 000000000 | 0000 | 00000000 | 000000 |
M15 | 1 | Extra Fine | 25mm | 5 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 0000 | 000000000 | 0000 | 00000000 | 000000 |
M17 | 1 | Extra Fine | 28mm | 5 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 0000 | 000000000 | 0000 | 00000000 | 000000 |
M20 | 1 | Extra Fine | 32mm | 6 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 0000 | 000000000 | 0000 | 00000000 | 000000 |
M25 | 1.5 | Extra Fine | 38mm | 7 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 0000 | 000000000 | 0000 | 00000000 | 000000 |
M30 | 1.5 | Extra Fine | 45mm | 7 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 0000 | 000000000 | 0000 | 00000000 | 000000 |
M35 | 1.5 | Extra Fine | 52mm | 8 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 0000 | 000000000 | 0000 | 00000000 | 000000 |
M40 | 1.5 | Extra Fine | 58mm | 9 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 0000 | 000000000 | 0000 | 00000000 | 000000 |
M45 | 1.5 | Extra Fine | 65mm | 10 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M50 | 1.5 | Extra Fine | 70mm | 11 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 0000 | 00000000 | 000000 |
M55 | 2 | Extra Fine | 75mm | 11 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M60 | 2 | Extra Fine | 80mm | 11 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 0000 | 00000000 | 000000 |
M65 | 2 | Extra Fine | 85mm | 12 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 0000 | 00000000 | 000000 |
M70 | 2 | Extra Fine | 92mm | 12 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 0000 | 00000000 | 00000000 |
M75 | 2 | Extra Fine | 98mm | 13 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M80 | 2 | Extra Fine | 105mm | 15 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 0000 | 00000000 | 00000000 |
M85 | 2 | Extra Fine | 110mm | 16 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 0000 | 00000000 | 00000000 |
M90 | 2 | Extra Fine | 120mm | 16 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 00000 | 000000 | 00 |
M95 | 2 | Extra Fine | 125mm | 17 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 00000 | 000000 | 00 |
M100 | 2 | Extra Fine | 130mm | 18 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M105 | 2 | Extra Fine | 140mm | 18 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 0000 | 000000 | 00 |
M110 | 2 | Extra Fine | 145mm | 19 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 00000 | 000000 | 00 |
M115 | 2 | Extra Fine | 150mm | 19 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 00000 | 000000 | 00 |
M120 | 2 | Extra Fine | 155mm | 20 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 00000 | 000000 | 00 |
M125 | 2 | Extra Fine | 160mm | 21 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 00000 | 000000 | 00 |
M130 | 2 | Extra Fine | 165mm | 21 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 00000 | 000000000 | 00000 | 000000 | 00 |
M135 | 2 | Extra Fine | 175mm | 22 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000000 | 00000 | 000000 | 00 |
M140 | 2 | Extra Fine | 180mm | 22 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000000 | 00000 | 000000 | 00 |
M145 | 2 | Extra Fine | 190mm | 24 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000000 | 00000 | 000000 | 00 |
M150 | 2 | Extra Fine | 195mm | 24 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000000 | 00000 | 000000 | 00 |
M155 | 3 | Extra Fine | 200mm | 25 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 | 000000 | 00 |
M160 | 3 | Extra Fine | 210mm | 25 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000000 | 000000 | 000000 | 00 |
M165 | 3 | Extra Fine | 210mm | 26 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 | 000000 | 00 |
M170 | 3 | Extra Fine | 220mm | 26 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000000 | 000000 | 000000 | 00 |
M180 | 3 | Extra Fine | 230mm | 27 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000000 | 000000 | 000000 | 00 |
M190 | 3 | Extra Fine | 240mm | 28 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 | 000000 | 00 |
M200 | 3 | Extra Fine | 250mm | 29 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 | 000000 | 00 |
M220 | 4 | Extra Fine | 280mm | 32 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000000 | 000000 | 000000 | 00 |
M240 | 4 | Extra Fine | 300mm | 34 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 | 000000 | 00 |
M260 | 4 | Extra Fine | 330mm | 36 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 | 000000 | 00 |
M280 | 4 | Extra Fine | 350mm | 38 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 | 000000 | 00 |
Bearing Retaining Jam Nuts
![](/prerenderstable/mvPRE/contents/gfx/imagecache/354/3549n12-1584033639-p9@halfx_637196124602199545.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/354/3549n12matte-steelnegative_right_positive_front_flop15_1583529117_227@halfx_637191043761552275.png?ver=imagenotfound)
Used in pairs or with another bearing retaining nut, these jam nuts—often called shaft nuts—hold bearings, bushings, pulleys, and gears in place on your threaded shaft or spindle. Threading two nuts tightly against each other makes it harder for vibration to loosen your assembly than if you used only one nut. For the nut closer to the bearing, position the stepped face towards the bearing. These jam nuts have holes on the side, so you can tighten and loosen them with a pin spanner wrench. Made of carbon steel, they’re strong and wear resistant. All meet DIN 1816, an international standard for bearing locknut dimensions.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||
---|---|---|---|---|---|---|---|
Size | Pitch, mm | Spacing | OD, mm | Wd., mm | Specifications Met | Each | |
Carbon Steel | |||||||
Stepped Face | |||||||
M8 | 1 | Fine | 20 | 5 | DIN 1816 | 0000000 | 000000 |
M12 | 1.5 | Fine | 28 | 6 | DIN 1816 | 0000000 | 00000 |
M14 | 1.5 | Fine | 30 | 7 | DIN 1816 | 0000000 | 00000 |
M16 | 1.5 | Fine | 32 | 7 | DIN 1816 | 0000000 | 00000 |
M18 | 1.5 | Fine | 34 | 8 | DIN 1816 | 0000000 | 00000 |
M20 | 1.5 | Extra Fine | 36 | 8 | DIN 1816 | 0000000 | 00000 |
M22 | 1.5 | Fine | 40 | 9 | DIN 1816 | 0000000 | 00000 |
M24 | 1.5 | Extra Fine | 42 | 9 | DIN 1816 | 0000000 | 00000 |
M26 | 1.5 | Extra Fine | 45 | 10 | DIN 1816 | 0000000 | 00000 |
M28 | 1.5 | Extra Fine | 50 | 10 | DIN 1816 | 0000000 | 00000 |
M30 | 1.5 | Extra Fine | 50 | 10 | DIN 1816 | 0000000 | 00000 |
M35 | 1.5 | Extra Fine | 55 | 11 | DIN 1816 | 0000000 | 00000 |
M40 | 1.5 | Extra Fine | 62 | 12 | DIN 1816 | 0000000 | 00000 |
M42 | 1.5 | Extra Fine | 62 | 12 | DIN 1816 | 0000000 | 00000 |
M45 | 1.5 | Extra Fine | 68 | 12 | DIN 1816 | 0000000 | 00000 |
M48 | 1.5 | Extra Fine | 75 | 13 | DIN 1816 | 0000000 | 00000 |
M50 | 1.5 | Extra Fine | 75 | 13 | DIN 1816 | 0000000 | 00000 |
M52 | 1.5 | Extra Fine | 80 | 13 | DIN 1816 | 0000000 | 00000 |
M55 | 1.5 | Extra Fine | 80 | 13 | DIN 1816 | 0000000 | 00000 |
M60 | 1.5 | Extra Fine | 90 | 13 | DIN 1816 | 0000000 | 00000 |
M62 | 1.5 | Extra Fine | 95 | 14 | DIN 1816 | 0000000 | 000000 |
M65 | 1.5 | Extra Fine | 95 | 14 | DIN 1816 | 0000000 | 000000 |
M68 | 1.5 | Extra Fine | 100 | 14 | DIN 1816 | 0000000 | 000000 |
M70 | 1.5 | Extra Fine | 100 | 14 | DIN 1816 | 0000000 | 00000 |
M72 | 1.5 | Extra Fine | 110 | 14 | DIN 1816 | 0000000 | 000000 |
M75 | 1.5 | Extra Fine | 110 | 14 | DIN 1816 | 0000000 | 00000 |
M80 | 2 | Extra Fine | 115 | 16 | DIN 1816 | 0000000 | 00000 |
Mounting Nuts for Shock Absorbers
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Use Mounting Blocks for Shock Absorbers (not included) to mount and secure threaded-body shock absorbers.
Tamper-Resistant Drilled Spanner Nuts
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A wide base and large bearing surface make these nuts good for securing large objects. They must be installed and removed with a spanner driver (sold separately). Use them to reduce the risk of unwanted removal for objects in public spaces such as signs, lighting fixtures, and displays. Made from zinc alloy, they're corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.