5/8-18 x 3/8 Oval Point Alloy Steel Socket Set Screw with Nylon Insert identifies the exact thread and length for an alloy steel oval point set screw with a nylon insert. This point style is useful when the part may be loosened and reset without the deep mark of a biting point. Specify the heat-treated alloy steel body with nylon pellet when the print calls for mechanical set screw hardware, not a stainless substitute.
Maintenance repairs often require the same thread, length, oval point, and locking feature already installed.
The 5/8-18 rows are also fine-thread-only here, an uncommon locking oval point configuration. Since 1962, Cold Headers has helped buyers distinguish similar socket set screws by point geometry and locking feature. 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: 3/8 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.
