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    22 Products

    Thin-Profile Hex Nuts
    3D CAD models available

    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-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    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.,
    mm
    Ht.,
    mm
    Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    M18 × 1.5 mm279ISO Class 04
    		DIN 439B, ISO 40351000000000000000
    M18 × 2.5 mm279ISO Class 04
    		DIN 439B, ISO 4035100000000000000
     
    Zinc Yellow-Chromate-Plated Steel
    M18 × 1.5 mm279ISO Class 04
    		DIN 439B, ISO 403550000000000000
     
    Steel
    M18 × 1.5 mm279__DIN 936100000000000000
    M18 × 1.5 mm279ISO Class 04
    		DIN 439B, ISO 4035100000000000000
    M18 × 2.5 mm279__DIN 9361000000000000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Hex Nuts. Thin-Profile Hex Nuts.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to the harsh chemicals that 316 stainless steel can.
    Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M18 × 1.5 mm279DIN 439B, ISO 4035100000000000000
    M18 × 1.5 mm279DIN 93610000000000000
    M18 × 2.5 mm279DIN 439B, ISO 4035500000000000000
    M18 × 2.5 mm279DIN 936500000000000000
     
    Black-Oxide 18-8 Stainless Steel
    M18 × 1.5 mm279DIN 439B, ISO 403510000000000000
    M18 × 2.5 mm279DIN 439B, ISO 403510000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    M18 × 1.5 mm279DIN 439B, ISO 403510000000000000
    M18 × 2.5 mm279DIN 93610000000000000
     

    Left-Hand-Thread Thin-Profile Hex Nuts
    3D CAD models available

    These nuts tighten when turned to the left. Use them with left-hand rods and screws to prevent counterclockwise-moving parts from loosening. 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. Contains Annotated, MultipleImages. Hex Nuts. Left-Hand-Thread 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.
    Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Black-Oxide Steel
    M18 × 1.5 mm279ISO Class 04
    		ASTM A108, DIN 439B, ISO 4035100000000000000
    M18 × 2.5 mm279ISO Class 04
    		ASTM A108, DIN 439B, ISO 403510000000000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Contains Annotated, MultipleImages. Hex Nuts. Left-Hand-Thread Thin-Profile Hex Nuts.
    Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Specs. Met
    Each
    Super-Corrosion-Resistant 316 Stainless Steel
    M18 × 1.5 mm279DIN 439B, ISO 4035000000000000000
     
    Brass
    Image of Product. Front orientation. Contains Annotated, MultipleImages. Hex Nuts. Left-Hand-Thread Thin-Profile Hex Nuts.
    Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Specs. Met
    Each
    Brass
    M18 × 1.5 mm279DIN 439B, ISO 4035000000000000000
     

    Steel Hex Panel Nuts
    3D CAD models available

    Fasten these panel nuts with a wrench for more torque while tightening than knurled panel nuts. Also known as dress nuts, they're extremely thin for use in tight spaces such as electrical panels.
    Metric ThreadAbout Metric Thread
    Image of Product. Front orientation. Panel Nuts. Steel Hex Panel Nuts.
    Zinc-Plated Steel—Zinc-plated steel nuts resist corrosion in wet environments.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    M18 × 1.5 mm246100000000000000
     

    Thin-Profile Nylon-Insert Locknuts
    3D CAD models available

    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.
    Low-Strength Steel
    Image of Product. Front orientation. Locknuts. Thin-Profile Nylon-Insert Locknuts.
    Rated Grade 2, Class 6, or lower, these locknuts are about half as strong as medium-strength steel nuts. Use them with screws that have a similar strength rating to avoid stripping threads during installation.
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Insert Max.
    Temp., ° F
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    M18 × 2.5 mm2613245ISO 10511100000000000000
     

    Bearing Nuts
    3D CAD models available

    Image of Product. Front orientation. Bearing Nuts. Bearing Nuts, Stepped Face.

    Stepped Face

    Often paired with spring lock washers to strengthen their hold, these bearing 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.
    Stepped Face—Use stepped-face bearing nuts with DIN 462 spring lock washers. You can also use them in pairs or with other bearing nuts. For the nut closer to the bearing, position the stepped face towards the bearing. All meet DIN standards for bearing lockout dimensions.
    Carbon Steel—Carbon steel bearing nuts are strong and resist wear.
    Thread Spacing—When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.
    Thread
    Carbon Steel
    Size
    Spacing
    OD,
    mm
    Wd.,
    mm
    Specs.
    Met
    For Lock
    Washer
    Specs. Met
    Each
    Stepped Face
    M18 × 1.5 mmFine
    		348DIN 1804DIN 4620000000000000
     

    Thin-Profile Bearing Nuts
    3D CAD models available

    Image of System. Front orientation. Contains Annotated. Bearing Nuts. Thin-Profile Bearing Nuts.
    Image of Product. Front orientation. Bearing Nuts. Thin-Profile Bearing Nuts.
    Used in pairs or with another bearing nut, these thin-profile 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 thin-profile nuts have holes on the side, so you can tighten and loosen them with a pin spanner wrench. All meet DIN 1816, an international standard for bearing locknut dimensions.
    Carbon Steel—Carbon steel bearing nuts are strong and resist wear.
    Thread Spacing—When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.
    Thread
    Carbon Steel
    Size
    Spacing
    OD,
    mm
    Wd.,
    mm
    Specs.
    Met
    Each
    Stepped Face
    M18 × 1.5 mmFine
    		348DIN 18160000000000000
     
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