Low Head Socket Cap Screw

Low Head Socket Cap Screw

A low head socket cap screw, also known as a low-profile socket cap screw, is a type of fastener used in mechanical applications. It has a hexagonal socket drive and a cylindrical head with a reduced height compared to standard socket cap screws. This reduced head height allows the screw to sit flush or nearly flush with the surface it is fastening, making it ideal for applications where space or clearance is limited. These screws are often used in situations where a standard socket cap screw would interfere with other components or where a lower profile is desired.

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Specifications & Technical Data

Dimensions

Nominal Size D F A H J T
Basic Screw Diameter Body Diameter Head Diameter Head Height Hex Socket Size Key Engagement
Max Min Max Min Max Min Min
8 0.1640 0.1640 0.1585 0.270 0.265 0.085 0.079 0.078 0.060
10 0.1900 0.1900 0.1840 0.312 0.307 0.098 0.092 0.094 0.072
1/4 0.2500 0.2500 0.2435 0.375 0.369 0.127 0.121 0.125 0.094
5/16 0.3125 0.3125 0.3053 0.437 0.431 0.158 0.152 0.156 0.110
3/8 0.3750 0.3750 0.3678 0.562 0.556 0.192 0.182 0.188 0.115
1/2 0.5000 0.5000 0.4919 0.750 0.743 0.254 0.244 0.250 0.151

Low Head Socket Cap Screw Specifications

  • Standard (ASME/ANSI)
    • ASME B18.3 2012
  • Metric (IFI)

Industries We Serve

Nickel Systems provides high quality exotic grade materials that hold up in the toughest, most severe heat and corrosive environments. With our large inventory of specialty fasteners in stock, we are always ready to answer the call to serve the most challenging applications.

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