Stainless Hex Cap Screws

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Stainless hex cap screws have a washer face, a radius under the head, and a chamfered point. Available in 18-8 and 316 stainless steel, RC Fasteners & Components’ stainless hex cap screws are made from the austenitic alloys described here:

  • 18-8 Stainless: Made from one of the following austenitic alloys: 303, 303Se, 304, or XM7, all of which are characterized as having chromium content of 17-19% and nickel content of 8-10%. 18-8 stainless is used in products that require general atmospheric corrosion resistance.
  • 316 Stainless: 316 or A4 stainless hex cap screws are made from an austenitic alloy which differs from 18-8 by its molybdenum content (2-3%) and a higher nickel content (10-14%). This molybdenum content gives 316 stainless even greater corrosion resistance than 18-8, as well as superior strength at high temperatures.