1/2-13 x 7/16 Flat Point Alloy Steel Socket Set Screw with Nylon Insert supports repeated adjustment because the flat point spreads contact over a full bearing face. The flat point clamps by friction, so it is commonly chosen for shafts that should not be intentionally marked by a biting point. Use the heat-treated alloy steel body with the nylon locking pellet where the application calls for mechanical fastening rather than stainless material.
Packaging equipment and indexing hardware may use the nylon insert where vibration can work against thread friction. ASME B18.3 places flat point diameter in a qualitative band of about 0.55-0.62 times nominal screw diameter, so confirm the mating seat rather than substituting a sharp point.
Cold Headers can help identify the correct flat point alloy set screw when the drawing calls out a locking insert. 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: 1/2-13
- Length: 7/16 in.
- Drive: Internal Hex
- Hex Key Size: 1/4 in.
- Locking Feature: Nylon insert providing prevailing torque
- Nylon Insert Diameter (P): 5/32 in.
- Nylon Insert Location (N): 9/32 in., +/-1/2 pitch
- Dimensional Standard: ASME B18.3
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
