5/8-18 x 1/2 Flat Point Alloy Steel Socket Set Screw with Nylon Insert is the nylon-insert version of a flat point socket set screw for compact industrial assemblies. The internal hex drive keeps the screw headless and accessible in collars, hubs, and compact machine details. Use the heat-treated alloy steel body with the nylon locking pellet where the application calls for mechanical fastening rather than stainless material.

Instrument and control components may need the no-mark behavior of a flat point along with an internal hex drive.

Large 5/8 flat point locking set screws are not always easy to source through general-line channels. The catalog keeps this family separate from plain flat point screws so the nylon insert requirement remains visible. Check thread size, length, socket size, pellet dimensions, shaft-flat condition, and surface-marking tolerance before substitution.

Technical Highlights

• Point: Flat (full bearing face)
• Material: Alloy Steel
• Thread Size: 5/8-18
• Length: 1/2 in.
• Drive: Internal Hex
• Hex Key Size: 5/16 in.
• Locking Feature: Nylon insert providing prevailing torque
• Nylon Insert Diameter (P): 3/16 in.
• Nylon Insert Location (N): 11/32 in., +/-1/2 pitch
• Dimensional Standard: ASME B18.3

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