5-40 x 5/16 Oval Point Alloy Steel Socket Set Screw with Nylon Insert uses a rounded oval point to reduce marking while the insert adds friction in the mating thread. 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.

Tooling fixtures and inspection stops can use the rounded point where settings are revisited between jobs.

Cold Headers can review non-catalog oval point set screw needs when the application requires a nylon insert. Cold Headers supports distributor, OEM, and maintenance sourcing when an oval point part must match the existing print. 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: 5-40
• Length: 5/16 in.
• Drive: Internal Hex
• Hex Key Size: 1/16 in.
• Locking Feature: Nylon insert providing prevailing torque
• Nylon Insert Diameter (P): 1/16 in.
• Nylon Insert Location (N): 7/64 in., +/-1/2 pitch
• Dimensional Standard: ASME B18.3

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