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5/8-18 x 1 Oval Point Alloy Steel Socket Set Screw with Nylon Insert is suited to collars, knobs, and stops that may be loosened, rotated, and reset during service. Oval point geometry favors adjustable contact and re-seating rather than maximum bite into the mating part. Specify the heat-treated alloy steel body with nylon pellet when the print calls for mechanical set screw hardware, not a stainless substitute.

Automation machinery can use these screws in compact collars, guide blocks, stops, and control components. Alloy steel is not the corrosion-focused option, so use protective oiling or a stainless request when exposure requires it.

In-house pellet installation supports uncommon oval point nylon-insert requirements when a standard plain screw is not enough. The 5/8-18 rows are also fine-thread-only here, an uncommon locking oval point configuration. Cold Headers focuses on exact-size socket fastener sourcing for production cells, repairs, and plant maintenance programs. Check thread size, length, socket size, pellet dimensions, groove or seat condition, and surface-marking tolerance before substitution.

Technical Highlights

  • Point: Oval (rounded radiused tip)
  • Material: Alloy Steel
  • Thread Size: 5/8-18
  • Length: 1 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.

Unit of Measure

Specifications

Brands

N/A Cold Headers, Inc.

Diameter

N/A 5/8-18

Length

N/A 1 in

Material

N/A Alloy Steel

Quantity

N/A 50

Package Type

N/A Box

Search

N/A OPASSHSSNI.5/8-18.1

Note

Note

N/A Less Than Package Quantity Specified Plus 25%.