1/4-28 x 1 Cup Point Slotted Headless Set Screw is sized for assemblies that need a cup point slotted headless set screw with clear thread and length identification. For field service, the slot makes tool matching simple while preserving the compact installation expected from a set screw. Cup point geometry is a general-purpose set screw point for friction holding without requiring a drilled hole or machined flat.
Use this configuration for antique machine restoration, legacy equipment repairs, small hubs, and spindle-mounted components when the job calls for a headless screw and flat-blade drive access. Carbon steel should be kept dry and oiled; ask about stainless options when environmental exposure is part of the job. Square Head Set Screws remain a wrench-driven alternative in this catalog section.
Cold Headers supports exact-size sourcing when a drawing or parts list calls for slotted headless set screw hardware. Check the diameter, length, drive access, mating material, and whether cup-point marking is acceptable before ordering.
Technical Highlights
- Drive: Straight Slot (flat-blade screwdriver)
- Point: Cup
- Thread Size: 1/4-28
- Length: 1 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.
