5/16-18 x 7/8 18-8 Stainless Steel Button Head Socket Cap Screw with Nylon Insert is a compact socket-driven fastener for joints where a separate washer or adhesive is not desired. Its insert creates thread-friction resistance to backing out under vibration without requiring a separate locking washer.
Because the socket is shallower than a full socket head cap screw, compare 18-8 SHCS with Nylon Insert when clamp load and deeper drive engagement govern the joint. In electronics enclosures, cabinet covers, or instrument panels, the internal hex drive supports top-side installation while the rounded head reduces surface projection.
18-8 stainless is practical for washdown-adjacent machinery, packaging equipment, and outdoor or high-touch hardware where the service environment is not chloride-critical. For flush countersunk installation instead of a dome head, review 18-8 Flat Head Cap Screws with Nylon Insert. Cold Headers supports distributors, maintenance teams, and OEM sourcing work when a precise button-head nylon-insert configuration is needed.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
