The 5/8-11 x 5 1/2 size in 18-8 stainless is suited to hex-head fastening where frames, brackets, or guards need serviceable external drive access. In this size range it is treated as a hex head cap screw, with the hex head driven by external tooling rather than an internal socket.

Common application reviews include washdown areas, clean-looking assemblies, and general plant environments. The head can be tightened with standard side-access tooling, which helps where top clearance is limited by covers or nearby components.

18-8 stainless steel is an 18% chromium and 8% nickel austenitic stainless material used for ordinary atmosphere, moisture exposure, washdown, and clean appearance. When standard catalog searches are too broad, Cold Headers supports precise sourcing for stainless fasteners and related socket products.

Technical Highlights

• Material: 18-8 Stainless Steel
• Thread Size: 5/8-11
• Length: 5 1/2 in.
• Head Style: Hex
• Drive: External Hex (wrench or socket driven)
• Dimensional Standard: ASME B18.2.1
• Material Standard: ASTM F593

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.