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    44 Products

    Steel-Insert Locknuts for Extreme Vibration
    3D CAD models available

    Image of Product. Bottom orientation. Locknuts. Steel-Insert Locknuts for Extreme Vibration.
    The most secure hold of all the locknuts we offer. The tab on the insert stops the nut from rotating, even under extreme vibration. These locknuts are ideal for equipment with constant motion or jarring starts and stops, including conveyors, shakers, and compactors. In fact, they're so secure that they're even used to fasten components on roller coasters. These locknuts are also reusable, but their holding power decreases after the first use, so you should use a new nut for the strongest possible hold.
    Medium-Strength Steel
    These Grade 5 or Class 8 nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Each
    Steel
    1/2"-13
    3/4"1/2"SAE Grade 5
    00000000000000
    5/8"-11
    15/16"5/8"SAE Grade 5
    0000000000000
    3/4"-10
    1 1/8"3/4"SAE Grade 5
    0000000000000
    3/4"-16
    1 1/8"3/4"SAE Grade 5
    0000000000000
    7/8"-9
    1 5/16"7/8"SAE Grade 5
    0000000000000
    7/8"-14
    1 5/16"7/8"SAE Grade 5
    00000000000000
    1"-8
    1 1/2"1"SAE Grade 5
    00000000000000
    1 1/4"-7
    1 7/8"1 1/4"SAE Grade 5
    00000000000000
    1 1/2"-6
    2 1/4"1 1/2"SAE Grade 5
    00000000000000
    M12 × 1.75 mm19 mm11.7 mmISO Class 8
    0000000000000
    M16 × 2 mm24 mm14.6 mmISO Class 8
    0000000000000
    M20 × 2.5 mm31.75 mm22.23 mmISO Class 8
    0000000000000
    M22 × 2.5 mm32 mm20 mmISO Class 8
    00000000000000
    M24 × 3 mm36 mm21.5 mmISO Class 8
    00000000000000
    M27 × 3 mm41 mm24.4 mmISO Class 8
    00000000000000
    M30 × 3.5 mm46 mm27 mmISO Class 8
    00000000000000
     

    Thin-Profile Steel-Insert Locknuts for Extreme Vibration
    3D CAD models available

    Image of Product. Bottom orientation. Locknuts. Thin-Profile Steel-Insert Locknuts for Extreme Vibration.
    About two-thirds the height of standard steel-insert locknuts, these fit in spaces with low clearance and offer the most secure hold of all our thin-profile locknuts. You can also use them as jam nuts by threading them against a hex nut to hold it in place. The tab on the insert stops the nut from rotating, even under extreme vibration. These locknuts are ideal for equipment with constant motion or jarring starts and stops, including conveyors, shakers, and compactors. In fact, they're so secure, they can even fasten components on roller-coasters. You can reuse them once or twice, but their holding power decreases after the first use, so you should use a new locknut for the strongest possible hold.
    High-Strength Steel
    Rated Grade 8, Grade C, or Class 10, these locknuts are about 25% stronger than medium-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Each
    Steel
    1/2"-13
    3/4"13/32"SAE Grade 8
    00000000000000
    5/8"-11
    15/16"1/2"SAE Grade 8
    0000000000000
    3/4"-10
    1 1/8"9/16"SAE Grade 8
    0000000000000
    3/4"-16
    1 1/8"9/16"SAE Grade 8
    00000000000000
    7/8"-9
    1 5/16"21/32"SAE Grade 8
    00000000000000
    7/8"-14
    1 5/16"19/32"SAE Grade 8
    00000000000000
    1"-8
    1 1/2"3/4"SAE Grade 8
    00000000000000
    1 1/4"-7
    1 7/8"31/32"SAE Grade 8
    00000000000000
    1 1/2"-6
    2 1/4"1 1/16"SAE Grade 8
    00000000000000
     

    Heavy-Profile Steel-Insert Locknuts for Extreme Vibration
    3D CAD models available

    Image of Product. Bottom orientation. Locknuts. Heavy-Profile Steel-Insert Locknuts for Extreme Vibration.
    Nearly 10% wider and taller than standard steel-insert locknuts, these handle heavier loads by distributing them over a larger area. They also have the most secure hold of all the heavy-profile locknuts we offer. The tab on the insert stops the nut from rotating, even under extreme vibration. These locknuts are ideal for equipment with constant motion or jarring starts and stops, including conveyors, shakers, and compactors. In fact, they're so secure that they're even used to fasten components on roller coasters. These locknuts are also reusable, but their holding power decreases after the first use, so you should use a new nut for the strongest possible hold.
    High-Strength Steel
    Rated Grade 8, Grade C, or Class 10, these locknuts are about 25% stronger than medium-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc Yellow-Chromate-Plated Steel—With a more durable finish than clear zinc plating, these nuts are suitable for most wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Each
    Zinc Yellow-Chromate-Plated Steel
    1/2"-13
    7/8"19/32"SAE Grade 8
    00000000000000
    5/8"-11
    1 1/16"47/64"SAE Grade 8
    0000000000000
    3/4"-10
    1 1/4"57/64"SAE Grade 8
    0000000000000
    1"-8
    1 5/8"1 11/64"SAE Grade 8
    00000000000000
     
    Steel
    3/8"-16
    11/16"13/32"SAE Grade 8
    0000000000000
    1/2"-13
    7/8"37/64"SAE Grade 8
    0000000000000
    5/8"-11
    1 1/16"47/64"SAE Grade 8
    0000000000000
    3/4"-10
    1 1/4"7/8"SAE Grade 8
    0000000000000
    7/8"-9
    1 7/16"1 1/32"SAE Grade 8
    00000000000000
    1"-8
    1 5/8"1 11/64"SAE Grade 8
    00000000000000
    1 1/8"-7
    1 13/16"1 17/64"SAE Grade 8
    00000000000000
    1 1/4"-7
    2"1 13/32"SAE Grade 8
    00000000000000
    1 1/2"-6
    2 3/8"1 11/16"SAE Grade 8
    00000000000000
    1 3/4"-5
    2 3/4"2 1/32"SAE Grade 8
    000000000000000
     
    Medium-Strength Steel
    These Grade 5 or Class 8 nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Each
    Steel
    1/2"-13
    7/8"9/16"SAE Grade 5
    00000000000000
    5/8"-11
    1 1/16"45/64"SAE Grade 5
    0000000000000
    3/4"-10
    1 1/4"27/32"SAE Grade 5
    0000000000000
    7/8"-9
    1 7/16"63/64"SAE Grade 5
    0000000000000
    1"-8
    1 5/8"1 1/8"SAE Grade 5
    00000000000000
     
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