5/8-11 x 1 1/4 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. Because the point registers into a prepared feature, check the shaft, hub, or fixture detail before substituting a cup point style.

Fixture stops that register in milled slots can use the stub for repeatable placement while the insert supports the setting. Check mating feature, hex access, screw length, and marking tolerance. The polymer insert changes the service envelope compared with an all-metal screw, so review heat exposure before specifying the locking version.

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: 5/8-11
• Length: 1 1/4 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): 7/16 in., +/- 1/2 pitch
• Dimensional Standard: ASME B18.3

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