Holo-krome 730003200 Hex Socket Cap Screw 3/4-16 Unf

Product Description

The HOLO-KROME 730003200 is a partially threaded hex socket cap screw designed for high-strength bolted connections in industrial, mechanical, and trade applications. It features a 3/4-16 UNF thread size and a 3-1/2 inch length under head, making it suited for assemblies requiring a fine-thread fastener with significant grip length. The 5/8 inch hex drive socket accepts a standard hex key or Allen-type driver. Constructed from alloy steel with a black oxide coating, this cap screw delivers strong tensile performance and moderate corrosion resistance in controlled environments. It meets ASME B18.3 and ASTM A574 standards.

This cap screw is used in mechanical assemblies, structural connections, and equipment fabrication where fine-thread engagement and high clamping force are required. Partial threading allows for shank-to-bore contact in clearance holes, which is common in precision fixture work, machine bases, pump assemblies, and similar applications. It is installed by machinists, millwrights, pipefitters, and general mechanical contractors working with bolted steel assemblies.

Key Features

• 3/4-16 UNF fine thread for higher tensile strength and vibration resistance compared to coarse thread
• 3-1/2 inch length under head with partial threading for shank-to-bore fit in clearance applications
• 5/8 inch hex socket drive for use with standard hex keys or Allen drivers
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide finish provides mild corrosion resistance and reduced light reflection
• Conforms to ASME B18.3 dimensional standards for hex socket cap screws

Compatibility

Designed as a standard ASME B18.3 hex socket cap screw for use in any application requiring a 3/4-16 UNF partially threaded fastener with a 5/8 inch hex drive.

Installation Notes

Installation is performed by qualified mechanical tradespeople using a properly sized 5/8 inch hex key or T-handle driver. De-energize and lock out all equipment before fastener installation or removal in powered assemblies. Do not substitute a coarse-thread fastener in a fine-thread tapped hole, as thread mismatch can strip the bore. Torque to the value specified in the equipment manufacturer's documentation or applicable engineering standards for the joint classification.