5/16"-18 x 3" Button Socket Cap Screw – 316 Stainless Steel

For applications requiring added length and dependable fastening, this 5/16"-18 x 3" button socket cap screw is fabricated from corrosion‑resistant 316 stainless steel for durability in harsh environments. The fully threaded shank supports secure fastening through thicker assemblies, while the low‑profile button head and internal hex drive provide easy installation and a clean, finished look in exposed or tight‑clearance applications.