1/4-28 x 1/2 Flat Point Alloy Steel Socket Set Screw with Nylon Insert gives purchasing teams a specific alloy steel flat point nylon-insert size for replacement work. Flat point geometry favors surface protection and repeatable adjustment rather than maximum bite into the mating part. Use the heat-treated alloy steel body with the nylon locking pellet where the application calls for mechanical fastening rather than stainless material.

Typical uses include adjustable collars and stops on finished shafts where the contact mark must be controlled. Do not treat plain alloy steel as corrosion resistant; protect or oil the part when the environment demands it.

Cold Headers supports industrial distributors, OEM buyers, and maintenance teams when a set screw must match the existing print. Check thread size, length, socket size, pellet dimensions, shaft-flat condition, and surface-marking tolerance before substitution.

Technical Highlights

  • Point: Flat (full bearing face)
  • Material: Alloy Steel
  • Thread Size: 1/4-28
  • Length: 1/2 in.
  • Drive: Internal Hex
  • Hex Key Size: 1/8 in.
  • Locking Feature: Nylon insert providing prevailing torque
  • Nylon Insert Diameter (P): 7/64 in.
  • Nylon Insert Location (N): 3/16 in., +/-1/2 pitch
  • Dimensional Standard: ASME B18.3

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 1/4-28

Length

N/A 1/2 in

Material

N/A Nylon

Quantity

N/A 100

Package Type

N/A Box

Search

N/A FPASSHSSNI.1/4-28.1/2

Note

Note

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