1-64 x 3/8 18-8 Stainless Steel Socket Head Cap Screw serves maintenance and repair work when the replacement fastener must stay within the 18-8 stainless socket head cap screw family. Engineers often choose 18-8 stainless where clean appearance, moderate environmental exposure, and general manufacturing compatibility matter. The cylindrical socket head works well in counterbored or recessed locations where side access is restricted. Typical placements include instrumentation, sensor mounts, and laboratory fixtures where general corrosion resistance and internal-hex access are useful. Manufacturing facilities can standardize this size where corrosion-resistant socket-drive hardware is required. Technical Highlights: Material: 18-8 Stainless Steel; Thread: 1-64 UNC; Length: 3/8 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.