Bulk 5/8"-18 UNF Knurled Cup Point Socket Set Screws, Thermal Black Oxide

Alloy Steel | Fine Thread | Vibration-Resistant Design

Achieve precision fastening with superior vibration resistance using Bulk 5/8"-18 UNF Knurled Cup Point Socket Set Screws. Manufactured from high-strength alloy steel and finished with a thermal black oxide coating, these set screws provide durability, moderate corrosion resistance, and a sleek, dark appearance. The knurled cup point design features serrated ridges that increase holding power, preventing loosening under heavy torque or vibration. Perfect for securing collars, gears, pulleys, and rotating assemblies in demanding industrial and mechanical applications.

Key Features

• Thread Size: 5/8"-18 UNF (Fine Thread)
• Point Type: Knurled Cup Point for enhanced grip and vibration resistance
• Material: High-strength alloy steel for durability
• Finish: Thermal black oxide for mild corrosion protection and a smooth, dark appearance
• Drive Style: Internal Hex Socket (Allen wrench/hex key required)
• Application: Securing collars, pulleys, gears, and rotating components
• Bulk Packs: Cost-effective solution for industrial-scale usage

Why Knurled Cup Point Set Screws?

The knurled cup point design is engineered to dig into the contact surface, increasing friction and preventing loosening under high torque or repeated movement. These set screws offer superior holding power, making them ideal for applications that require precise, reliable fastening in high-vibration or heavy-load environments.

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 correctly sized hex socket/Allen wrench to ensure proper fit.
• Apply even torque to avoid stripping or damaging threads.
• Ensure the contact surface is clean and free of debris for maximum grip.
• Regularly inspect in high-vibration environments to maintain tightness.

Order in Bulk Today

Get the secure, vibration-resistant fastening solution you need with Bulk 5/8"-18 UNF Knurled Cup Point Socket Set Screws. Order now for fast shipping, bulk discounts, and top-tier performance in demanding industrial applications.

✔️ Knurled cup point ensures a secure hold under vibration

✔️ Thermal black oxide finish for mild corrosion resistance

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