This 4-40 x 7/8 18-8 stainless hex head cap screw is a size-specific listing for assemblies that use a nut or prepared tapped hole. In this size range it is treated as a hex head machine screw, with the hex head driven by external tooling rather than an internal socket.
Common application reviews include machinery guards, side-mounted brackets, and serviceable equipment joints. Need these in 316 or another alloy? Ask; non-catalog sourcing is part of Cold Headers' work.
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 helps buyers match uncommon lengths, older drawings, and replacement sizes without changing the protected SKU data.
Technical Highlights
- Material: 18-8 Stainless Steel
- Thread Size: 4-40
- Length: 7/8 in.
- Head Style: Hex
- Drive: External Hex (wrench or socket driven)
- Width Across Flats: 1.285-1.312 in.
- Wrench Size: 1 5/16 in.
- Head Height: 0.531-0.563 in.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
