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Cap Screws & Hex Bolts

784 results found that include 19,410 products

The hex head cap screw is a common fastener in construction and machine assembly. The screw head is designed to fit a ratchet or spanner torque wrenches allowing you to tighten the screw to your exact specifications. Hex head cap screws are typically used to create a bolted joint, in which a threaded shaft exactly fits a corresponding tapped hole or nut. Grade 2 screws tend to be used in construction for joining wood components. Grade 5 screws are used in small engines. Grade 8 screws provide high tensile strength. One advantage cap screw fasteners have over welds or rivets is that they allow for easy disassembly for repairs and maintenance. Grainger has the hex head cap screws, nuts, washers and other fasteners you need for machine maintenance and general construction.Close

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  • 5/8"-11 Dia./Thread (UNC), Hex Head, 18-8 &#
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. 18-8 Stainless Steel construction is easy to sanitize and resists corrosion from water, humidity, and oxidizing acids.

      Multiple product options available

  • 1/2"-13 Dia./Thread (UNC), Hex Head, Grade 5
    • TM

      Grainger Choice

    • Multiple product options available

      The thick, hexagonal head design on these steel cap screws is engineered for tightening with a wrench. Use in pretapped holes or with nuts. Grade 5 steel construction offers strength and moderate flexibility, allowing the screws to withstand shear force better than Grade 8 screws.

      Multiple product options available

  • 5/8"-11 Dia./Thread (UNC), Hex Head, Grade 5
    • TM

      Grainger Choice

    • Multiple product options available

      With Grade 5 steel construction, these hex head cap screws offer strength and moderate flexibility. The thick, hexagonal head design is engineered for tightening with a wrench. Use in pretapped holes or with nuts. Grade 5 steel is hardened, yet more malleable than Grade 8, allowing the screws to withstand shear force.

      Multiple product options available

  • 3/8"-16 Dia./Thread (UNC), Hex Head, Grade 5
    • TM

      Grainger Choice

    • Multiple product options available

      The thick, hexagonal head design on these steel cap screws is engineered for tightening with a wrench. Use in pretapped holes or with nuts. Grade 5 steel construction offers strength and moderate flexibility, allowing the screws to withstand shear force better than Grade 8 screws.

      Multiple product options available

  • 1/4"-20 Dia./Thread (UNC), Hex Head, Grade 5
    • TM

      Grainger Choice

    • Multiple product options available

      The thick, hexagonal head design on these steel cap screws is engineered for tightening with a wrench. Use in pretapped holes or with nuts. Grade 5 steel construction offers strength and moderate flexibility, allowing the screws to withstand shear force better than Grade 8 screws.

      Multiple product options available

  • 1/2"-13 Dia./Thread (UNC), Hex Head, Grade 8
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. Grade 8 steel construction helps provide high tensile strength and high torque capabilities.

      Multiple product options available

  • 5/8"-11 Dia./Thread (UNC), Hex Head, Grade 8
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. Grade 8 steel construction helps provide high tensile strength and high torque capabilities.

      Multiple product options available

  • 3/8"-16 Dia./Thread (UNC), Hex Head, 18-8 &#
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. 18-8 Stainless Steel construction is easy to sanitize and resists corrosion from water, humidity, and oxidizing acids.

      Multiple product options available

  • 1-1/2"-6 Dia./Thread (UNC), Hex Head, Grade
    • TM

      Grainger Choice

    • Multiple product options available

      With Grade 5 steel construction, these hex head cap screws offer strength and moderate flexibility. The thick, hexagonal head design is engineered for tightening with a wrench. Use in pretapped holes or with nuts. Grade 5 steel is hardened, yet more malleable than Grade 8, allowing the screws to withstand shear force.

      Multiple product options available

  • 1/4"-20 Dia./Thread (UNC), Hex Head, Grade 8
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. Grade 8 steel construction helps provide high tensile strength and high torque capabilities.

      Multiple product options available

  • 1/2"-13 Dia./Thread (UNC), Hex Head, 18-8 &#
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. 304 Stainless Steel construction helps to resist corrosion from water, humidity, and oxidizing acids. Screws with NL-19® offer a brighter finish, increased strength, and superior corrosion resistance when compared with standard 304 stainless steel screws. Screws with vibration-resistant silicone O-rings under the head help to seal out air, water, lubricants, and liquid and gas contaminants.

      Multiple product options available

  • 5/16"-18 Dia./Thread (UNC), Hex Head, Grade
    • TM

      Grainger Choice

    • Multiple product options available

      These hex head screws each feature a thick, hexagonal head designed for tightening with a wrench. Use in pretapped holes or with nuts. Grade 5 steel construction offers strength and moderate flexibility. The screws are hardened, yet more malleable than Grade 8, allowing them to withstand shear force.

      Multiple product options available

  • 5/16"-18 Dia./Thread (UNC), Hex Head, 18-8 &
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. 18-8 Stainless Steel construction is easy to sanitize and resists corrosion from water, humidity, and oxidizing acids.

      Multiple product options available

  • 3/4"-10 Dia./Thread (UNC), Hex Head, Grade 5
    • TM

      Grainger Choice

    • Multiple product options available

      With Grade 5 steel construction, these hex head cap screws offer strength and moderate flexibility. The thick, hexagonal head design is engineered for tightening with a wrench. Use in pretapped holes or with nuts. Grade 5 steel is hardened, yet more malleable than Grade 8, allowing the screws to withstand shear force.

      Multiple product options available

  • 3/8"-16 Dia./Thread (UNC), Hex Head, Grade 8
    • TM

      Grainger Choice

    • Multiple product options available

      These Hex Head Cap Screws feature hexagon-shaped heads for tightening and loosening with a socket or wrench. Grade 8 steel construction offers high tensile strength and high torque capabilities.

      Multiple product options available

  • 1-1/4"-7 Dia./Thread (UNC), Hex Head, Grade
    • TM

      Grainger Choice

    • Multiple product options available

      With Grade 8 steel construction, these Hex Head Cap Screws offer high tensile strength and high torque capabilities. The hexagon-shaped heads are suitable for socket or wrench tightening.

      Multiple product options available

  • 1/2"-13 Dia./Thread (UNC), Hex Head, (316&#x
    • TM

      Grainger Choice

    • Multiple product options available

      These Hex Head Cap Screws feature hexagonal heads for socket or wrench tightening. They also feature 316 Stainless Steel construction, which offers high resistance to pitting corrosion and is ideal for use in marine environments.

      Multiple product options available

  • M6-1.00 Dia./Thread (Metric Coarse), Hex Head, (A
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. A2 Stainless Steel construction is easy to sanitize and resists corrosion from water, humidity, and oxidizing acids.

      Multiple product options available

  • 1/4"-20 Dia./Thread (UNC), Hex Head, 18-8 &#
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. 18-8 Stainless Steel construction is easy to sanitize and resists corrosion from water, humidity, and oxidizing acids.

      Multiple product options available

  • 5/8"-11 Dia./Thread (UNC), Hex Head, (316&#x
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. 316 Stainless Steel construction offers high resistance to pitting corrosion and is ideal for use in marine environments.

      Multiple product options available

  • M8-1.25 Dia./Thread (Metric Coarse), Hex Head, (A
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. A2 Stainless Steel construction is easy to sanitize and resists corrosion from water, humidity, and oxidizing acids.

      Multiple product options available

  • M16-2.00 Dia./Thread (Metric Fine), Hex Head, Class&#x
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. Class 8.8 steel cap screws are quenched and tempered. They are hard, yet malleable, allowing them to withstand shear force. Class 8.8 steel cap screws are comparable to Grade 5 steel cap screws.

      Multiple product options available

  • 5/16"-18 Dia./Thread (UNC), Hex Head, Grade
    • TM

      Grainger Choice

    • Multiple product options available

      These Hex Head Cap Screws feature hexagon-shaped heads for tightening and loosening with a socket or wrench. Grade 8 steel construction offers high tensile strength and high torque capabilities.

      Multiple product options available

  • 1/4"-20 Dia./Thread (UNC), Hex Head, (316&#x
    • TM

      Grainger Choice

    • Multiple product options available

      With 316 Stainless Steel construction, these Hex Head Cap Screws offer high resistance to pitting corrosion, making them ideal for use in marine environments. They are equipped with hexagon-shaped heads for socket or wrench tightening.

      Multiple product options available

  • 3/4"-10 Dia./Thread (UNC), Hex Head, 18-8 &#
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. 18-8 Stainless Steel construction is easy to sanitize and resists corrosion from water, humidity, and oxidizing acids.

      Multiple product options available

  • M20-2.50 Dia./Thread (Metric Coarse), Hex Head, Class&
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. Class 10.9 steel cap screws are quenched and tempered. They offer higher yield strength and higher tensile strength than Class 8.8 steel cap screws. Comparable to Grade 8 Steel.

      Multiple product options available

  • 7/16"-14 Dia./Thread (UNC), Hex Head, 18-8 &
    • TM

      Grainger Choice

    • Multiple product options available

      Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. 18-8 Stainless Steel construction is easy to sanitize and resists corrosion from water, humidity, and oxidizing acids.

      Multiple product options available

  • 3/8"-16 Dia./Thread (UNC), Hex Head, (316&#x
    • TM

      Grainger Choice

    • Multiple product options available

      These Hex Head Cap Screws feature hexagonal heads for socket or wrench tightening. They also feature 316 Stainless Steel construction, which offers high resistance to pitting corrosion and is ideal for use in marine environments.

      Multiple product options available

  • 3/4"-10 Dia./Thread (UNC), Hex Head, (316&#x
    • TM

      Grainger Choice

    • Multiple product options available

      With 316 Stainless Steel construction, these Hex Head Cap Screws offer high resistance to pitting corrosion, making them ideal for use in marine environments. They are equipped with hexagon-shaped heads for socket or wrench tightening.

      Multiple product options available

  • 7/16"-14 Dia./Thread (UNC), Hex Head, Grade
    • TM

      Grainger Choice

    • Multiple product options available

      These Hex Head Cap Screws feature hexagon-shaped heads for tightening and loosening with a socket or wrench. Grade 8 steel construction offers high tensile strength and high torque capabilities.

      Multiple product options available

  • 3/4"-10 Dia./Thread (UNC), Hex Head, Grade 8
    • TM

      Grainger Choice

    • Multiple product options available

      These Hex Head Cap Screws feature hexagon-shaped heads for tightening and loosening with a socket or wrench. Grade 8 steel construction offers high tensile strength and high torque capabilities.

      Multiple product options available

  • 7/8"-9 Dia./Thread (UNC), Hex Head, Grade 8&
    • TM

      Grainger Choice

    • Multiple product options available

      These Hex Head Cap Screws feature hexagon-shaped heads for tightening and loosening with a socket or wrench. Grade 8 steel construction offers high tensile strength and high torque capabilities.

      Multiple product options available

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