Holo-krome 86724 Hex Socket Cap Screw 7/16-14 Unc Alloy Steel

Product Description

The HOLO-KROME 86724 is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, industrial equipment, and structural connections. It features a 7/16-14 UNC thread size with a 5-inch length under head and is driven by a 3/8-inch hex key. The fastener is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light glare on the fastener head. This is a partially threaded screw, meaning the shank near the head remains smooth to allow for bearing loads and controlled clamping. It conforms to ASME B18.3 and ASTM A574 standards, making it suitable for high-strength bolted joint applications.

This screw is used across a wide range of industrial and mechanical trade applications including machine tool assembly, structural steel fabrication, equipment mounting, and maintenance work. It is appropriate for both original equipment assembly and field repair scenarios. The 7/16-14 UNC coarse thread is well-suited for use in steel or tapped aluminum where quick engagement and resistance to cross-threading are priorities. Licensed machinists, millwrights, pipefitters, and general industrial mechanics routinely specify this fastener type.

Key Features

• 7/16-14 UNC coarse thread for reliable engagement in steel and aluminum tapped holes
• 5-inch length under head accommodates deep clamping and thick material stacks
• Partially threaded shank provides a smooth bearing surface for precision joint alignment
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide finish offers mild corrosion resistance and a low-reflectance surface
• 3/8-inch hex drive compatible with standard hex keys and socket drive tools

Compatibility

Designed as an OEM-style and replacement hex socket cap screw for applications requiring a 7/16-14 UNC thread, 5-inch length under head, and ASME B18.3 or ASTM A574 compliance.

Installation Notes

Installation should be performed by a qualified mechanic or millwright using a properly sized 3/8-inch hex key or socket drive tool. Always verify that the tapped hole thread form and depth are appropriate for a 7/16-14 UNC fastener before installation. De-energize and lock out all equipment before fastener service in live mechanical systems. Do not exceed the torque specifications defined in ASME or ASTM standards for this fastener grade and size.