4-40 x 7/16 Half Dog Point Alloy Steel Socket Set Screw with Nylon Insert combines internal hex access, a half dog locating stub, and a nylon locking pellet in one headless fastener. Use the half dog style where the receiving hole, slot, or groove is part of the assembly design.

Maintenance repairs often require the same thread, length, point style, and nylon insert already shown on the service record. Check mating feature, hex access, screw length, and marking tolerance. In-house pellet installation helps support nylon-insert requirements where a plain half dog screw would not meet the print.

Cold Headers works with distributors, OEM teams, and maintenance programs that need exact socket set screw configurations. Review insert dimensions, hex key size, and ASME B18.3 before ordering this alloy steel socket set screw.

Technical Highlights

• Point: Half Dog (short cylindrical locating stub)
• Material: Alloy Steel
• Thread Size: 4-40
• Length: 7/16 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): 9/64 in., +/- 1/2 pitch
• Dimensional Standard: ASME B18.3

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