5/16-18 x 1/2 Cup Point Slotted Headless Set Screw provides a cup point and straight slot drive for service work where a flat-blade screwdriver is the practical tool. The straight slot is useful in service kits, older equipment, and awkward access points where a screwdriver reaches more naturally than a key. Standard cup proportions run roughly 0.55 to 0.62 of nominal thread diameter, which is why the exact thread size matters.
Maintenance teams often review this type for appliance controls, small couplings, fixture plates, and maintenance applications that favor common tools, where a screwdriver-accessible fastener keeps service simple. Carbon steel should be kept dry and oiled; ask about stainless options when environmental exposure is part of the job.
Cold Headers is a Chicago specialty fastener distributor focused on practical replacement and sourcing support. Confirm the exact thread size and length, especially on legacy equipment where near-size substitutions can cause service problems.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
