Holo-krome 72116 Hex Socket Cap Screw 1/4-20 Unc Alloy Steel

Product Description

The HOLO-KROME 72116 is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, equipment fabrication, and industrial maintenance. It features a 1/4-20 UNC thread, a 3-inch length under head, and a 3/16-inch hex drive. The screw is manufactured from alloy steel and finished with a black oxide coating that provides mild corrosion resistance and reduces light reflection. Partial threading allows the unthreaded shank to provide precise locating and shear strength in close-tolerance joints. This fastener meets ASME B18.3 and ASTM A574 dimensional and mechanical standards, making it a recognized choice for load-bearing fastener applications.

This socket cap screw is used across a wide range of trade and industrial applications including HVAC equipment assembly, pump and motor mounting, electrical enclosure fabrication, and general mechanical maintenance. The hex socket drive allows installation in recessed or tight-clearance locations where a standard hex head wrench cannot reach. It is appropriate for both original equipment assembly and field repair work where a high-strength, compact-head fastener is required.

Key Features

• 1/4-20 UNC thread for broad compatibility with standard inch-series tapped holes
• 3-inch length under head with partial threading for shear-load and locating applications
• 3/16-inch hex socket drive for use with standard Allen or hex key tools
• Alloy steel construction meets ASTM A574 mechanical requirements for high-strength fasteners
• Black oxide finish provides mild corrosion resistance and low-glare appearance
• Conforms to ASME B18.3 dimensional standards

Compatibility

Designed as a standard 1/4-20 UNC hex socket cap screw suitable for use in any tapped hole or threaded insert conforming to 1/4-20 UNC inch-series thread specifications.

Installation Notes

Installation is performed with a 3/16-inch hex key or Allen wrench; use of a torque wrench is recommended for load-critical joints. Ensure the mating tapped hole or nut meets the same thread class before installation. Clean threads and inspect for damage prior to assembly. Minimum order quantity for this fastener is 100 pieces per order.