1/4-20 x 3/8 Oval Point Alloy Steel Socket Set Screw with Nylon Insert gives designers a rounded-contact set screw for shafts, grooves, and seats that may not be perfectly square. Oval point geometry favors adjustable contact and re-seating rather than maximum bite into the mating part. Specify the heat-treated alloy steel body with nylon pellet when the print calls for mechanical set screw hardware, not a stainless substitute.
Machine rebuilds use this family when the service record calls for alloy steel, an oval point, and a nylon insert.
The nylon pellet is added to create thread drag while leaving the rounded point responsible for mating-surface contact. Cold Headers focuses on exact-size socket fastener sourcing for production cells, repairs, and plant maintenance programs. Check thread size, length, socket size, pellet dimensions, groove or seat condition, and surface-marking tolerance before substitution.
Technical Highlights
- Point: Oval (rounded radiused tip)
- Material: Alloy Steel
- Thread Size: 1/4-20
- Length: 3/8 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.
