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    34 Products

    Steel Socket Head Screws

    Image of Product. Front orientation. Socket Head Screws. Steel Socket Head Screws, Fully Threaded.
    Image of Product. Front orientation. Socket Head Screws. Steel Socket Head Screws, Partially Threaded.

    Fully Threaded

    Partially Threaded

    Made of alloy steel, these screws are the standard for high-strength fastening. Use them in high-load applications such as dies, presses, and heavy equipment. The deep, six-point socket keeps the hex key from slipping out and damaging the drive.
    Length is measured from under the head.
    Black-Oxide Alloy Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Head
    Lg.
    Dia.
    Ht.
    Threading
    Thread
    Spacing
    Tensile Strength,
    psi
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Black-Oxide Alloy Steel
     
    5-44
    1/4"0.205"1/8"Fully ThreadedFine
    		170,000ASTM A5741090044A252000000
    3/8"0.205"1/8"Fully ThreadedFine
    		170,000ASTM A5741090044A25300000
    1/2"0.205"1/8"Fully ThreadedFine
    		170,000ASTM A5741090044A25400000
    3/4"0.205"1/8"Fully ThreadedFine
    		170,000ASTM A5741090044A25500000
    1"0.205"1/8"Partially ThreadedFine
    		170,000ASTM A574590044A2560000
     

    Stainless Steel Socket Head Screws

    Image of Product. Fully Threaded. Front orientation. Socket Head Screws. Stainless Steel Socket Head Screws, Fully Threaded.

    Fully Threaded

    Image of Product. Partially Threaded. Front orientation. Socket Head Screws. Stainless Steel Socket Head Screws, Partially Threaded.

    Partially Threaded

    These screws won't rust or corrode when exposed to moisture and chemicals. Their deep, six-point socket keeps hex keys from slipping out and damaging the drive.
    Length is measured from under the head.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel screws can.
    Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel screws, these screws won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Head
    Lg.
    Dia.
    Ht.
    Threading
    Thread
    Spacing
    Tensile Strength,
    psi
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    5-44
    1/4"0.205"1/8"Fully ThreadedFine
    		70,000ASME B18.35092196A23300000
    3/8"0.205"1/8"Fully ThreadedFine
    		70,000ASME B18.310090696A1720000
    1/2"0.205"1/8"Fully ThreadedFine
    		70,000ASME B18.35092196A2340000
    3/4"0.205"1/8"Fully ThreadedFine
    		70,000ASME B18.35092196A2350000
    1"0.205"1/8"Partially ThreadedFine
    		70,000ASME B18.35090696A1730000
     
    Highly Corrosion-Resistant 316 Stainless Steel
     
    5-44
    1/4"0.205"1/8"Fully ThreadedFine
    		70,000—5092185A1690000
    3/8"0.205"1/8"Fully ThreadedFine
    		70,000—5092185A1710000
    1/2"0.205"1/8"Fully ThreadedFine
    		70,000—5092185A17200000
     

    Stainless Steel Button Head Hex-Drive Screws

    Image of Product. Front orientation. Rounded Head Screws. Stainless Steel Button Head Hex-Drive Screws.
    These button head screws won't corrode from moisture and chemicals, but they aren't as strong as alloy steel screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver.
    Length is measured from under the head.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.
    Head
    Lg.
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    5-44
    1/4"0.238"0.066"Fully Threaded70,000192949A41600000
    3/8"0.238"0.066"Fully Threaded70,000192949A4170000
    1/2"0.238"0.066"Fully Threaded70,000192949A4180000
     

    Hex Nuts

    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    Image of Specification. Front orientation. Hex Nuts. Hex Nuts.

    The most commonly used hex nuts, these are suitable for fastening most machinery and equipment.
    Low-Strength Steel
    Rated Grade 2, Class 6, or lower, these nuts are about half as strong as medium-strength nuts. They are suitable for light duty fastening applications, such as securing access panels. 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.
    Ht.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    5-44
    		5/16"7/64"ASME B18.2.210090480A16500000
     
    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.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    5-44
    		5/16"7/64"10091841A16500000
     
    Brass
    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.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Brass
    5-44
    		5/16"7/64"10092671A165000000
     

    Steel Cup-Tip Set Screws

    Image of Product. Front orientation. Set Screws. Steel Cup-Tip Set Screws.
    Made of alloy steel, these screws are strong enough to hold components without wearing down. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.
    Black-Oxide Alloy Steel—These screws have a dark matte finish that offers minimal corrosion resistance, so they're best for dry environments.
    Lg.
    Drive
    Size
    Hardness
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Black-Oxide Alloy Steel
     
    5-44
    1/8"1/16"Rockwell C45ASME B18.3, ASTM F91210091375A221000000
    3/16"1/16"Rockwell C45ASME B18.3, ASTM F91210091375A22300000
    1/4"1/16"Rockwell C45ASME B18.3, ASTM F91210091375A22400000
    5/16"1/16"Rockwell C45ASME B18.3, ASTM F9122591375A22500000
    3/8"1/16"Rockwell C45ASME B18.3, ASTM F9122591375A22700000
     

    Steel Button Head Hex-Drive Screws

    Image of Product. Front orientation. Rounded Head Screws. Steel Button Head Hex-Drive Screws.
    Made of alloy steel, these screws have nearly twice the tensile strength of other steel screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver.
    Length is measured from under the head.
    Black-Oxide Alloy Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Head
    Lg.
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Black-Oxide Alloy Steel
     
    5-44
    1/4"0.238"0.066"Fully Threaded120,000ASME B18.3, ASTM F8351091255A129000000
    3/8"0.238"0.066"Fully Threaded120,000ASME B18.3, ASTM F8351091255A13100000
    1/2"0.238"0.066"Fully Threaded120,000ASME B18.3, ASTM F8351091255A13200000
     

    Stainless Steel Hex-Drive Flat Head Screws

    Image of Product. Front orientation. Flat Head Screws. Stainless Steel Hex-Drive Flat Head Screws.
    The most corrosion-resistant hex-drive flat head screws we offer. Made of stainless steel, they won't rust or corrode when exposed to moisture and chemicals, but they're not as strong as alloy steel. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver without slipping and stripping the drive.
    Length is measured from the top of the head.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.
    Standard Profile—Standard-profile heads are the most common choice for flat head screws.
    Head
    Lg.
    Countersink
    Angle
    Flat Head
    Profile
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    5-44
    1/4"82°
    		Standard
    		0.281"0.09"Fully Threaded70,000ASME B18.31092210A13200000
    3/8"82°
    		Standard
    		0.281"0.09"Fully Threaded70,000ASME B18.31092210A1330000
    1/2"82°
    		Standard
    		0.281"0.09"Fully Threaded70,000ASME B18.31092210A1340000
     

    Steel Hollow-Tip Set Screws

    Image of ProductInUse. Screw Used to Adjust Spring Tension. Front orientation. Contains Annotated. Set Screws. Steel Hollow-Tip Set Screws.

    Screw Used to Adjust

    Spring Tension

    Image of Product. Front orientation. Set Screws. Steel Hollow-Tip Set Screws.
    Thread these screws over a pin or another set screw to lock it in place, or over a spring to adjust tension. You can also peek through the hollow center to inspect locked parts. Made of alloy steel, these screws are strong enough to hold components without wearing down. Also known as jam set screws.
    Black-Oxide Alloy Steel—These screws have a dark matte finish that offers minimal corrosion resistance, so they're best for dry environments.
    Thread
    Size
    Lg.
    Drive
    Size
    Hardness
    Pkg.
    Qty.
    Pkg.
    Black-Oxide Alloy Steel
    5-44
    		3/32"1/16"Rockwell C451091301A163000000
     

    Steel Hex-Drive Flat Head Screws

    Image of Product. Front orientation. Flat Head Screws. Steel Hex-Drive Flat Head Screws.
    Our strongest hex-drive flat head screws. They're made of alloy steel, so they have nearly twice the tensile strength of other screws. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver without slipping and stripping the drive.
    Length is measured from the top of the head.
    Black-Oxide Alloy Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Standard Profile—Standard-profile heads are the most common choice for flat head screws.
    Head
    Lg.
    Countersink
    Angle
    Flat Head
    Profile
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Black-Oxide Alloy Steel
     
    5-44
    3/8"82°
    		Standard
    		0.281"0.09"Fully Threaded130,000ASTM F8351091253A14900000
    1/2"82°
    		Standard
    		0.281"0.09"Fully Threaded130,000ASTM F8351091253A15400000
    3/4"82°
    		Standard
    		0.281"0.09"Fully Threaded130,000ASTM F8351091253A15600000
     
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