Use the 5/16-24 x 3 1/2 18-8 stainless hex head cap screw when the assembly calls for side wrench access and a general-purpose bolt pattern. 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 machinery guards, side-mounted brackets, and serviceable equipment joints. Use it through a clearance hole with a nut or into a prepared tapped hole when the drawing calls for a stainless hex-head fastener.
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.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
