5/16-18 x 1 Cup Point Slotted Headless Set Screw gives maintenance teams a slotted headless set screw option with a cup point for general shaft and hub holding work. Because the screw has no head, it can thread below the surface of a collar, hub, knob, or housing when the tapped hole permits. The cup point is commonly used where localized holding contact is desired and the mating surface can tolerate set screw marks.

Typical uses include doorknob and lever spindles, latch hardware, small collars, and older mechanical assemblies, where the exact diameter and length help match a tapped hole or service record. 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: 5/16-18
  • 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.

Unit of Measure

Specifications

Brands

N/A Cold Headers, Inc.

Diameter

N/A 5/16-18

Length

N/A 1 in

Material

N/A Carbon Steel

Quantity

N/A 100

Package Type

N/A Box

Search

N/A CPSHLSS.5/16-18.1

Note

Note

N/A Less Than Package Quantity Specified Plus 25%.