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    65 Products

    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.
    Medium-Strength Steel
    Image of Product. Front orientation. Hex Nuts. Thin-Profile Hex Nuts.
    These Grade 5 or Class 04 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.
    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.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Yellow-Chromate-Plated Steel
    M4 × 0.7 mm72.2ISO Class 04
    DIN 439B, ISO 403510000000000000000
    M5 × 0.8 mm82.7ISO Class 04
    DIN 439B, ISO 40351000000000000000
    M6 × 1 mm103.2ISO Class 04
    DIN 439B, ISO 40351000000000000000
    M8 × 1 mm134ISO Class 04
    DIN 439B, ISO 40352500000000000000
    M8 × 1.25 mm134ISO Class 04
    DIN 439B, ISO 403510000000000000000
    M10 × 1.25 mm175ISO Class 04
    DIN 439B, ISO 4035250000000000000
    M10 × 1.5 mm175ISO Class 04
    DIN 439B, ISO 40355000000000000000
    M12 × 1.5 mm196ISO Class 04
    DIN 439B, ISO 4035250000000000000
    M12 × 1.75 mm196ISO Class 04
    DIN 439B, ISO 40355000000000000000
    M14 × 1.5 mm227ISO Class 04
    DIN 439B, ISO 4035250000000000000
    M14 × 2 mm227ISO Class 04
    DIN 439B, ISO 4035100000000000000
    M16 × 1.5 mm248ISO Class 04
    DIN 439B, ISO 4035100000000000000
    M16 × 2 mm248ISO Class 04
    DIN 439B, ISO 40352500000000000000
    M18 × 1.5 mm279ISO Class 04
    DIN 439B, ISO 403550000000000000
    M20 × 1.5 mm3010ISO Class 04
    DIN 439B, ISO 4035100000000000000
    M20 × 2.5 mm3010ISO Class 04
    DIN 439B, ISO 40351000000000000000
    M22 × 1.5 mm3211ISO Class 04
    DIN 439B, ISO 403550000000000000
    M30 × 2 mm4615ISO Class 04
    DIN 439B, ISO 403510000000000000
     
    High-Strength Steel
    Image of Product. Front orientation. Hex Nuts. Thin-Profile Hex Nuts.
    Rated Grade 8, Grade C, or Class 10, these nuts are about 25% stronger than medium-strength steel nuts. They are commonly used to fasten components in valves, pumps, motors, and other high-stress applications. 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.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Yellow-Chromate-Plated Steel
    1/4"-20
    7/16"5/32"SAE Grade 8
    ASME B18.2.2100000000000000000
    1/4"-28
    7/16"5/32"SAE Grade 8
    ASME B18.2.210000000000000000
    5/16"-18
    1/2"3/16"SAE Grade 8
    ASME B18.2.2500000000000000
    5/16"-24
    1/2"3/16"SAE Grade 8
    ASME B18.2.2500000000000000
    3/8"-16
    9/16"7/32"SAE Grade 8
    ASME B18.2.25000000000000000
    3/8"-24
    9/16"7/32"SAE Grade 8
    ASME B18.2.25000000000000000
    7/16"-14
    11/16"1/4"SAE Grade 8
    ASME B18.2.22500000000000000
    7/16"-20
    11/16"1/4"SAE Grade 8
    ASME B18.2.22500000000000000
    1/2"-13
    3/4"5/16"SAE Grade 8
    ASME B18.2.22500000000000000
    1/2"-20
    3/4"5/16"SAE Grade 8
    ASME B18.2.22500000000000000
    9/16"-12
    7/8"5/16"SAE Grade 8
    ASME B18.2.2100000000000000
    9/16"-18
    7/8"5/16"SAE Grade 8
    ASME B18.2.22000000000000000
    5/8"-11
    15/16"3/8"SAE Grade 8
    ASME B18.2.2100000000000000
    5/8"-18
    15/16"3/8"SAE Grade 8
    ASME B18.2.2100000000000000
    3/4"-10
    1 1/8"27/64"SAE Grade 8
    ASME B18.2.21000000000000000
    3/4"-16
    1 1/8"27/64"SAE Grade 8
    ASME B18.2.21000000000000000
    7/8"-9
    1 5/16"31/64"SAE Grade 8
    ASME B18.2.250000000000000
    7/8"-14
    1 5/16"31/64"SAE Grade 8
    ASME B18.2.2500000000000000
    1"-8
    1 1/2"35/64"SAE Grade 8
    ASME B18.2.2500000000000000
    1"-14
    1 1/2"35/64"SAE Grade 8
    ASME B18.2.2500000000000000
    1 1/8"-7
    1 11/16"39/64"SAE Grade 8
    ASME B18.2.210000000000000
    1 1/8"-12
    1 11/16"39/64"SAE Grade 8
    ASME B18.2.210000000000000
    1 1/4"-7
    1 7/8"23/32"SAE Grade 8
    ASME B18.2.210000000000000
    1 1/4"-12
    1 7/8"23/32"SAE Grade 8
    ASME B18.2.210000000000000
    1 3/8"-6
    2 1/16"25/32"SAE Grade 8
    ASME B18.2.2100000000000000
    1 1/2"-6
    2 1/4"27/32"SAE Grade 8
    ASME B18.2.2100000000000000
    1 1/2"-12
    2 1/4"27/32"SAE Grade 8
    ASME B18.2.2100000000000000
    1 3/4"-12
    2 5/8"31/32"SAE Grade 8
    ASME B18.2.2100000000000000
    2"-4 1/2
    3"1 3/32"SAE Grade 8
    ASME B18.2.2100000000000000
    2"-12
    3"1 3/32"SAE Grade 8
    ASME B18.2.2100000000000000
     

    Thin-Profile Nylon-Insert Locknuts

    About half the height of standard-profile locknuts, these fit in spaces with low clearance. You can also use them as jam nuts by threading them against a hex nut to hold it in place. The nylon insert grips the screw to prevent loosening from moderate vibration without damaging threads. However, the insert may become brittle if exposed to high temperatures. These locknuts are reusable a handful of times, but the holding power decreases with each use.
    High-Strength Steel
    Image of Product. Front orientation. Locknuts. Thin-Profile Nylon-Insert Locknuts.
    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.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Insert Max.
    Temp., ° F
    Pkg.
    Qty.
    Pkg.
    Zinc-Yellow-Chromate-Plated Steel
    1/4"-20
    7/16"13/64"SAE Grade 8
    Not Rated10000000000000000
    1/4"-28
    7/16"13/64"SAE Grade 8
    250100000000000000
    5/16"-18
    1/2"1/4"SAE Grade 8
    Not Rated10000000000000000
    5/16"-24
    1/2"1/4"SAE Grade 8
    2501000000000000000
    3/8"-16
    9/16"17/64"SAE Grade 8
    Not Rated10000000000000000
    3/8"-24
    9/16"17/64"SAE Grade 8
    Not Rated5000000000000000
    7/16"-14
    5/8"5/16"SAE Grade 8
    Not Rated250000000000000
    7/16"-20
    5/8"5/16"SAE Grade 8
    Not Rated250000000000000
    1/2"-13
    3/4"5/16"SAE Grade 8
    Not Rated2500000000000000
    1/2"-20
    3/4"5/16"SAE Grade 8
    25050000000000000
    5/8"-11
    15/16"25/64"SAE Grade 8
    Not Rated100000000000000
    5/8"-18
    15/16"25/64"SAE Grade 8
    25050000000000000
    3/4"-16
    1 1/16"13/32"SAE Grade 8
    25010000000000000
    7/8"-14
    1 1/4"15/32"SAE Grade 8
    25010000000000000
    1"-14
    1 7/16"35/64"SAE Grade 8
    25010000000000000
    1 1/4"-12
    1 13/16"3/4"SAE Grade 8
    Not Rated100000000000000
    1 1/2"-12
    2 3/16"51/64"SAE Grade 8
    Not Rated100000000000000
     
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