Bulk #5-40 UNC Knurled Cup Point Socket Set Screws, Thermal Black Oxide

Alloy Steel | Coarse Thread | Vibration-Resistant Design

Ensure a secure, vibration-resistant hold with Bulk #5-40 UNC Knurled Cup Point Socket Set Screws. Crafted from high-strength alloy steel and finished with a thermal black oxide coating, these set screws offer superior durability, mild corrosion resistance, and a smooth dark appearance. The knurled cup point design features serrated ridges that increase surface grip, significantly reducing loosening under high torque or vibration. These screws are ideal for securing collars, gears, pulleys, and rotating assemblies in mechanical and industrial applications.

Key Features

• Thread Size: #5-40 UNC (Coarse Thread)
• Point Type: Knurled Cup Point for enhanced vibration resistance
• Material: High-strength alloy steel for superior durability
• 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
• Heavy Equipment & Industrial Machinery
• Automotive & Small Engine Assemblies
• 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 #5-40 UNC 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