Socket Screws, Hex Screws, Socket Head Cap Screws | RS
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    Socket Screws

    Socket screws have a cylindrical head and an internal hex drive. They are used when externally wrenched fasteners are not practical because of a lack of space. Socket screws are tightened using an Allan or Hex key. Discover everything you need to know in our socket screws guide.

    RS offer an extensive range of high-quality threaded fixings with standard metric threads and UNC (Unified National Coarse) threads.

    Head Shapes

    • Hex Socket Button - has a larger head diameter making them more appropriate for holding thin materials such as sheet metal guards.
    • Hex Socket Cap - Socket cap screws have a head height equal to the shank diameter. They are used instead of a hex bolt when there is less clearance available.
    • Hex Socket Countersunk - used when you need a screw to fit flush or below the surface of your material.
    • Hex Socket Shoulder - often used as a pivot point or axis because shoulders are ground to a tight tolerance. They feature a small cylindrical head with tall vertical sides.

    What are the different types of materials available?

    Our socket screws are available in a range of materials to suit every application and environment. They include;

    • Stainless Steel, including 316 and 304 grades
    • Steel
    • Brass
    • Titanium Alloy

    When would I use a Socket Screw?

    Socket screws are found in a wide range of applications and industries. Machinery can often be found to have socket screws in their construction along with many industrial and engineering applications. Socket screws can provide a high level of torque and are easy to install or remove with both a manual allen or hex key or with an allen or hex bit in an electric screwdriver or drill.

    894 Products showing for Socket Screws

    RS PRO
    -
    M3
    12mm
    Hex Socket Cap
    Stainless Steel
    A2 304
    Plain
    Metric
    0.5mm
    -
    RS PRO
    Metric
    M6
    25mm
    Hex Socket Countersunk
    Stainless Steel
    A2 304
    Plain
    Metric
    1mm
    DIN 7991
    RS PRO
    -
    M3
    8mm
    Hex Socket Button
    Stainless Steel
    A2 304
    Plain
    Metric
    0.5mm
    -
    RS PRO
    Imperial
    5/8-11
    2 1/2in
    Hex Socket Cap
    Steel
    -
    -
    -
    5/8-11in
    -
    RS PRO
    Metric
    M12
    40mm
    Hex Socket Cap
    Stainless Steel
    A4 316
    -
    Metric
    1.75mm
    DIN 912
    RS PRO
    -
    M6
    12mm
    Hex Socket Button
    Stainless Steel
    A2 304
    Plain
    Metric
    1mm
    -
    RS PRO
    -
    M5
    16mm
    Hex Socket Cap
    Steel
    -
    Black, Self-Colour
    Metric
    0.8mm
    -
    RS PRO
    -
    M3
    20mm
    Hex Socket Countersunk
    Steel
    -
    Black, Self-Colour
    Metric
    0.5mm
    -
    RS PRO
    Metric
    M2
    6mm
    Hex Socket Cap
    Steel
    -
    Black, Self-Colour
    Metric
    0.4mm
    DIN 912
    RS PRO
    -
    M4
    16mm
    Hex Socket Countersunk
    Steel
    -
    Bright Zinc Plated
    Metric
    0.7mm
    -
    RS PRO
    -
    M16
    50mm
    Hex Socket Cap
    Steel
    -
    Black, Self-Colour
    Metric
    2mm
    -
    RS PRO
    Metric
    M10
    25mm
    Hex Socket Cap
    Stainless Steel
    A2 304
    -
    Metric
    1.5mm
    DIN 912
    RS PRO
    -
    M5
    16mm
    Hex Socket Countersunk
    Steel
    -
    Bright Zinc Plated
    Metric
    0.8mm
    -
    RS PRO
    -
    M5
    12mm
    Hex Socket Countersunk
    Steel
    -
    Bright Zinc Plated
    Metric
    0.8mm
    -
    RS PRO
    Metric
    M4
    10mm
    Hex Socket Button
    Steel
    -
    Bright Zinc Plated
    Metric
    0.7mm
    ISO 7380
    RS PRO
    Metric
    M10
    30mm
    Hex Socket Countersunk
    Steel
    -
    Bright Zinc Plated
    Metric
    1.5mm
    DIN 7991
    RS PRO
    Metric
    M5
    16mm
    Hex Socket Button
    Stainless Steel
    A4 316
    -
    Metric
    0.8mm
    ISO 7380
    RS PRO
    -
    M6
    30mm
    Hex Socket Cap
    Stainless Steel
    A2 304
    Plain
    Metric
    1mm
    -
    RS PRO
    -
    M10
    70mm
    Hex Socket Cap
    Steel
    -
    Black, Self-Colour
    Metric
    1.5mm
    -
    RS PRO
    Imperial
    10/32
    5/8in
    Hex Socket Cap
    Steel
    -
    -
    -
    10/32in
    -
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