3-48 x 1 5/8 Alloy Steel Socket Head Cap Screw gives engineering teams a long-format internal-drive fastener for through-bolted assemblies. An internal hex drive lets the head sit in a counterbore, keeping the joint flush and protected in service. The alloy steel base provides socket-cap-class strength for demanding mechanical assemblies. Sizes this long are confirmed and priced per order rather than listed at a flat rate. Pricing is quoted per 100 pieces; contact us for current pricing and availability on this size. Neighboring lengths in this thread appear in this category and in the standard range; modifications are available on request. The size is listed exactly as dimensioned so search and drawing callouts match one to one. Distributors and OEM purchasing teams can reference this exact size for repeat orders. Orders are packaged and labeled for industrial stockroom use. Distributors and OEM purchasing teams can reference this exact size for repeat orders. Orders are packaged and labeled for industrial stockroom use. The size is listed exactly as dimensioned so search and drawing callouts match one to one. Technical Highlights Material: Alloy Steel Thread: 3-48 Length: 1 5/8 in. Nominal Body Diameter: .099 in. Head Diameter: 0.154 Head Height: 0.095 Drive Type: Internal hex socket Finish: Plain (black)