1/2-20 x 3/8 Oval Point Alloy Steel Socket Set Screw with Nylon Insert is a heat-treated alloy steel oval point socket set screw with a nylon insert for prevailing torque. The internal hex drive keeps the screw headless and accessible in collars, hubs, handles, and compact control parts. Specify the heat-treated alloy steel body with nylon pellet when the print calls for mechanical set screw hardware, not a stainless substitute.

Maintenance repairs often require the same thread, length, oval point, and locking feature already installed.

This catalog separates oval point locking screws from plain oval point parts so the insert requirement stays visible. 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: 1/2-20
• Length: 3/8 in.
• Drive: Internal Hex
• Hex Key Size: 1/4 in.
• Locking Feature: Nylon insert providing prevailing torque
• Nylon Insert Diameter (P): 5/32 in.
• Nylon Insert Location (N): 9/32 in., +/-1/2 pitch
• Dimensional Standard: ASME B18.3

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