4-48 x 3/4 Cup Point Alloy Steel Socket Set Screw with Nylon Insert uses heat-treated alloy steel body construction with a nylon pellet in the thread. Use the nylon-insert version when a plain cup point needs added thread friction after seating.

Gear and sprocket retention often calls for a cup point where the screw bears into a hub or shaft feature. 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.

Technical Highlights

• Point: Cup (approximately 0.55-0.62 x nominal diameter)
• Material: Alloy Steel
• Thread Size: 4-48
• Length: 3/4 in.
• Drive: Internal Hex
• Hex Key Size: 0.050 in.
• Locking Feature: Nylon insert providing prevailing torque
• Nylon Insert Diameter (P): 1/16 in.
• Nylon Insert Location (N): 3/32 in., +/-1/2 pitch
• Dimensional Standard: ASME B18.3

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