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    25 Products
    About Hex Nuts
    industrial info icon

    Choose a hex nut with the right profile, material, and strength for your application.

    Thin-Profile Hex Nuts

    Image of Product. Front orientation. Hex Nuts. 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
    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
    M30 × 2 mm4615Class 04DIN 439B, ISO 4035190326A20600000
    M30 × 3.5 mm4615Class 04DIN 439B, ISO 4035190695A1410000
     
    Zinc-Yellow-Chromate-Plated Steel
    M30 × 2 mm4615Class 04DIN 439B, ISO 4035193737A1190000
     
    Steel
    M30 × 1.5 mm4612—DIN 936190364A1170000
    M30 × 2 mm4612—DIN 936190364A1160000
    M30 × 2 mm4615Class 04DIN 439B, ISO 4035190326A2220000
    M30 × 3.5 mm4612—DIN 936190370A1130000
    M30 × 3.5 mm4615—DIN 439B, ISO 4035190370A2160000
     
    Corrosion-Resistant Stainless Steel
    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.
    Highly 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
    M30 × 1.5 mm4612DIN 936197013A122000000
    M30 × 1.5 mm4615DIN 439B, ISO 4035191938A18000000
    M30 × 2 mm4615DIN 439B, ISO 4035191938A18900000
    M30 × 3.5 mm4612DIN 936190381A11100000
    M30 × 3.5 mm4615DIN 439B, ISO 4035190710A05000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    M30 × 2 mm4615DIN 439B, ISO 4035197289A13400000
    M30 × 3.5 mm4612DIN 936197289A12200000
    M30 × 3.5 mm4615DIN 439B, ISO 4035193935A37500000
     

    Left-Hand-Thread Thin-Profile Hex Nuts

    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
    M30 × 1.5 mm4615Class 04ASTM A108, DIN 439B, ISO 4035190519A846000000
    M30 × 2 mm4615Class 04ASTM A108, DIN 439B, ISO 4035190519A84500000
    M30 × 3.5 mm4615Class 04ASTM A108, DIN 439B, ISO 4035190519A82600000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Contains Annotated, MultipleImages. Hex Nuts. Left-Hand-Thread 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.
    Highly 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
    M30 × 1.5 mm4615DIN 439B194450A582000000
    M30 × 2 mm4615DIN 439B194450A58100000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    M30 × 1.5 mm4615DIN 439B, ISO 4035193031A14600000
     

    Bearing Nuts

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

    Carbon Steel

    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.
    Carbon Steel—Carbon steel bearing nuts are strong and resist wear.
    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.
    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.
    Nuts
    Bearing
    Lock Washers
    Thread
    Size
    Spacing
    OD,
    mm
    Wd.,
    mm
    Specs.
    Met
    For Lock Washer
    Specs. Met
    Each
    Each
    Carbon Steel
     
    Stepped Face
    M30 × 1.5 mmExtra Fine
    		5010DIN 1804DIN 4623564N2100000090407A12400000
     

    Thin-Profile Bearing Nuts

    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
    Size
    Spacing
    OD,
    mm
    Wd.,
    mm
    Specs.
    Met
    Each
    Carbon Steel
     
    Stepped Face
    M30 × 1.5 mmExtra Fine
    		5010DIN 18163549N22000000
     
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