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.

    1331 Products showing for Socket Screws

    Metric
    M8
    12mm
    Hex Socket Cap
    Stainless Steel
    A4 316
    -
    Metric
    1.25mm
    DIN 912
    Metric
    M10
    100mm
    Hex Socket Countersunk
    Steel
    -
    Black, Self-Colour
    Metric
    1.5mm
    DIN 7991
    Metric
    M6
    25mm
    Hex Socket Countersunk
    Stainless Steel
    A4 316
    -
    Metric
    1mm
    ISO 10642
    -
    M3
    20mm
    Hex Socket Cap
    Stainless Steel
    A2 304
    Plain
    Metric
    0.5mm
    -
    Metric
    M4
    16mm
    Hex Socket Countersunk
    Stainless Steel
    A4 316
    -
    Metric
    0.7mm
    ISO 10642
    Metric
    M4
    10mm
    Hex Socket Countersunk
    Stainless Steel
    A4 316
    -
    Metric
    0.7mm
    ISO 10642
    Metric
    M3
    10mm
    Hex Socket Cap
    Stainless Steel
    A4 316
    -
    Metric
    0.5mm
    DIN 912
    -
    M5
    12mm
    Hex Socket Countersunk
    Steel
    -
    Bright Zinc Plated
    Metric
    0.8mm
    -
    Metric
    M8
    25mm
    Hex Socket Cap
    Steel
    -
    Bright Zinc Plated
    Metric
    1.25mm
    DIN 912
    Metric
    M8
    60mm
    Hex Socket Countersunk
    Steel
    -
    Black, Self-Colour
    Metric
    1.25mm
    DIN 7991
    -
    M3
    6mm
    Hex Socket Countersunk
    Steel
    -
    Black, Self-Colour
    Metric
    0.5mm
    -
    Imperial
    5/8-11
    1 1/2in
    Hex Socket Cap
    Steel
    -
    -
    -
    5/8-11in
    -
    Metric
    M8
    20mm
    Hex Socket Cap
    Stainless Steel
    A4 316
    -
    Metric
    1.25mm
    DIN 912
    -
    M5
    12mm
    Hex Socket Countersunk
    Steel
    -
    Black, Self-Colour
    Metric
    0.8mm
    -
    Metric
    M10
    25mm
    Hex Socket Button
    Stainless Steel
    A2 304
    -
    Metric
    1.5mm
    ISO 7380
    -
    M3
    6mm
    Hex Socket Cap
    Stainless Steel
    A2 304
    Plain
    Metric
    0.5mm
    -
    -
    M5
    16mm
    Hex Socket Countersunk
    Steel
    -
    Bright Zinc Plated
    Metric
    0.8mm
    -
    Metric
    M10
    45mm
    Hex Socket Cap
    Stainless Steel
    A2 304
    -
    Metric
    1.5mm
    DIN 912
    -
    M8
    35mm
    Hex Socket Cap
    Stainless Steel
    A2 304
    Plain
    Metric
    1.25mm
    -
    Metric
    M6
    16mm
    Hex Socket Countersunk
    Stainless Steel
    A2 304
    Plain
    Metric
    1mm
    ISO 10642
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