1/4-28 x 3/4 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.

This size is relevant for gears in light equipment, fixture stops, bracket retainers, and general maintenance stock, especially when the slotted drive is already part of the equipment design. Review Knurled Point Alloy Steel Socket Set Screws when the application calls for a more aggressive vibration-grip point.

Cold Headers helps match exact sizes for legacy hardware, maintenance work, and distributor sourcing requests. When replacing a removed screw, compare thread, length, slot condition, and whether the cup point matches the original intent.

Technical Highlights

• Drive: Straight Slot (flat-blade screwdriver)
• Point: Cup
• Thread Size: 1/4-28
• Length: 3/4 in.
• Material: Carbon Steel
• Cup Point Diameter: approx. 0.55-0.62 x nominal diameter
• Head: None (headless, installs below surface)
• Dimensional Standard: ASME B18.6.2

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