[100 PKG] Cap Screws Button Head Pin In Socket Alloy Steel 4-40 X 3/8

Cap Screws Button Head Pin In Socket Alloy Steel 4-40 X 3/8 is a precision-grade fastener engineered for secure, low-profile fastening in a variety of assemblies. Built from durable alloy steel, this cap screw combines a compact 4-40 thread with a shallow, smooth-button head for applications where space is at a premium.

Key features include a socket (internal hex) drive for reliable torque transfer and a pin-in socket design that enhances gripping stability in tight tolerances. The result is a secure, flush installation that resists loosening in challenging environments.

• Material: Alloy steel
• Head style: Button head cap screw
• Drive type: Socket (internal hex)
• Pin-in socket design: Pin-in socket configuration
• Thread size: 4-40
• Length: 3/8 inch

Designed for high-precision, low-profile fastening, this cap screw provides a secure socket drive and a shallow head that minimizes interference in dense assemblies. Its alloy steel construction offers strength and durability for repeated tightening and cycling in mechanical, electronic, and automotive applications.

Recommended uses include electronics enclosures, precision machinery, robotics assemblies, and other systems where a compact fastener with a clean, button-style head is preferred. Choose Cap Screws Button Head Pin In Socket Alloy Steel 4-40 X 3/8 for dependable performance in tight spaces and finished assemblies that require a smooth, professional appearance.