5/16"-18 x 2‑1/2" Button Socket Cap Screw – 316 Stainless Steel

Suited for thicker materials and extended reach fastening, this 5/16"-18 x 2‑1/2" button socket cap screw is manufactured from 316 stainless steel to withstand corrosion in marine, chemical, and outdoor settings. The full‑thread design promotes consistent clamping strength along the entire shank, while the low‑profile button head and internal hex drive provide a clean appearance and controlled installation in both structural and visible applications.