6-40 x 1 Cup Point Alloy Steel Socket Set Screw with Nylon Insert is specified when the drawing calls for alloy steel, a cup point, and a nylon locking pellet. Use the nylon-insert version when a plain cup point needs added thread friction after seating.

Tooling fixtures and production stops may use this part when adjustment must remain compact and accessible from a hex socket. Confirm thread size, length, hex key size, cup point geometry, pellet diameter, and pellet location before substituting another set screw.

Use Cold Headers when the requirement is specific: alloy steel body, cup point, internal hex drive, and nylon insert. Cone, flat, oval, and half dog point alloy socket set screws with nylon insert use the same locking concept with different point geometry.

Technical Highlights

• Point: Cup (approximately 0.55-0.62 x nominal diameter)
• Material: Alloy Steel
• Thread Size: 6-40
• Length: 1 in.
• Drive: Internal Hex
• Hex Key Size: 1/16 in.
• Locking Feature: Nylon insert providing prevailing torque
• Nylon Insert Diameter (P): 5/64 in.
• Nylon Insert Location (N): 1/8 in., +/-1/2 pitch
• Dimensional Standard: ASME B18.3

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