#4-40 UNC Socket Set Screws, Cup Point, Alloy Steel, Zinc-Bake CR+3

Coarse Thread | High-Strength Alloy Steel | Corrosion-Resistant Zinc-Bake CR+3

Secure small-scale industrial and mechanical applications with #4-40 UNC Socket Set Screws, Cup Point. Crafted from high-strength alloy steel, these set screws provide exceptional grip, vibration resistance, and long-lasting performance. The cup point design enhances surface contact, while the Zinc-Bake CR+3 coating offers superior corrosion resistance, making these screws an excellent choice for precision applications.

Key Features

• Thread Size: #4-40 UNC (Coarse Thread)
• Point Type: Cup Point for strong grip and vibration resistance
• Material: Hardened Alloy Steel for industrial durability
• Coating: Zinc-Bake CR+3 for long-lasting corrosion protection
• Drive Style: Hex Socket (Allen wrench required)
• Thread Profile: UNC / Coarse Thread for secure fastening
• Application: Precision components, electronics, and machinery
• Bulk Availability: Cost-effective large packs for high-volume use

Why Choose Cup Point Set Screws?

Cup point set screws are widely used in locking small gears, pulleys, and delicate components. The concave tip provides secure fastening while minimizing surface damage. The Zinc-Bake CR+3 finish enhances corrosion resistance, ensuring longevity in high-precision applications.

Ideal Applications

• Precision Machinery and Miniature Components
• Locking Gears, Pulleys, and Shafts
• Vibration-Resistant Fastening in Small Mechanical Systems
• Corrosion-Resistant Fastening for Electronics and Industrial Use
• Securing Delicate Components in Aerospace and Robotics

Installation Tips

• Use a properly sized hex key (Allen wrench) to prevent stripping.
• Apply steady torque for a firm grip and secure hold.
• Ensure surfaces are clean and free of debris before installation.
• Consider using a thread-locking compound for additional security in high-vibration environments.

Order in Bulk Today

Choose #4-40 UNC Socket Set Screws, Cup Point for reliable, high-performance fastening. Order now for fast shipping, bulk discounts, and industrial-grade reliability.

✔️ Cup point for maximum holding power and vibration resistance

✔️ Zinc-Bake CR+3 coating for corrosion resistance and durability

✔️ Ideal for industrial, electronic, and high-precision applications