Bulk #6-40 UNF Knurled Cup Point Socket Set Screws, Thermal Black Oxide

Alloy Steel | Fine Thread | Vibration-Resistant Design

Get secure, vibration-resistant fastening with
Bulk #6-40 UNF Knurled Cup Point Socket Set Screws.
Manufactured from high-strength alloy steel and coated
with a thermal black oxide finish, these set screws offer
exceptional durability, mild corrosion resistance, and a sleek dark appearance.
The knurled cup point design features serrated ridges that increase surface grip,
significantly reducing loosening under high torque or vibration. Ideal for
securing collars, gears, pulleys, and rotating assemblies
in precision applications.

Key Features

• Thread Size: #6-40 UNF (Fine Thread)
• Point Type: Knurled Cup Point for enhanced vibration resistance
• Material: High-strength alloy steel for reliability
• Finish: Thermal black oxide for mild corrosion protection and a sleek, dark appearance
• Drive Style: Internal Hex Socket (Allen wrench/hex key required)
• Application: Securing collars, pulleys, gears, and rotating components
• Bulk Availability: Cost-effective solution for industrial-scale use

Why Knurled Cup Point Set Screws?

The knurled cup point set screws are designed to
increase friction and prevent loosening under high torque
and vibration. The serrated edges grip the mating surface, ensuring a
firm hold in demanding mechanical applications.

Ideal Applications

• Collars, Gears, & Pulleys on Shafts
• Precision Machinery & Instrumentation
• Automotive & Aerospace Applications
• High-Torque & High-Vibration Environments
• Maintenance & Repair Operations (MRO)

Installation Tips

• Use a properly sized hex socket/Allen wrench for the best fit.
• Apply even torque to ensure a secure hold without damaging threads.
• Ensure the contact surface is clean and free of debris for optimal grip.
• Inspect periodically in high-vibration settings to maintain tightness.

Order in Bulk Today

Get the secure, vibration-resistant fastening solution you need with
Bulk #6-40 UNF Knurled Cup Point Socket Set Screws.
Order now for fast shipping,
bulk discounts, and the best performance for demanding
industrial applications.

✔️ Knurled cup point provides superior grip under vibration

✔️ Thermal black oxide finish offers mild corrosion resistance

✔️ Ideal for rotating machinery, collars, gears, and pulleys