1-64 x 5/8 18-8 Stainless Steel Socket Head Cap Screw is specified when engineers need a stainless internal-hex fastener with everyday corrosion resistance and compact head geometry. This material is useful across production facilities where moisture, handling, and routine cleaning influence fastener selection. Internal-hex engagement gives engineering departments a familiar drive style for stainless machine components. Typical placements include processing equipment, power transmission guards, and production facilities where general corrosion resistance and internal-hex access are useful. Purchasing agents can source the specified stainless fastener without changing the approved product family. Technical Highlights: Material: 18-8 Stainless Steel; Thread: 1-64 UNC; Length: 5/8 in.; Nominal Body Diameter: 0.073 in.; Head Diameter: 0.118 in. max / 0.112 in. min; Head Height: 0.073 in. max / 0.070 in. min; Hex Key Size: 1/16; Drive Type: internal hex. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.