7/8-9 x 4 18-8 Stainless Steel Hex Head Cap Screw provides a familiar wrench-driven head for plant equipment and field replacement work. 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 outdoor general-service equipment, frames, and adjustment brackets. 18-8 stainless is not a graded or heat-treated fastener; where certified high clamp loads govern, a graded steel hex bolt is the better tool.
18-8 stainless steel is an 18% chromium and 8% nickel austenitic stainless material used for ordinary atmosphere, moisture exposure, washdown, and clean appearance. Cold Headers serves maintenance and production needs where exact-size stainless hardware matters more than generic substitution.
Technical Highlights
- Material: 18-8 Stainless Steel
- Thread Size: 7/8-9
- Length: 4 in.
- Head Style: Hex
- Drive: External Hex (wrench or socket driven)
- Width Across Flats: 0.181-0.188 in.
- Wrench Size: 3/16 in.
- Head Height: 0.049-0.060 in.
- 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.
