Holo-krome 730003220 Hex Socket Cap Screw 3/4-16 Unf

Product Description

The HOLO-KROME 730003220 is a hex socket cap screw designed for high-strength fastening applications in mechanical, industrial, and trade service environments. It features a 3/4-16 UNF thread size and a 4-inch length under the head with partial threading. Drive engagement is through a 5/8-inch hex socket. Constructed from alloy steel with a black oxide finish, this fastener provides solid corrosion resistance and is built to meet ASME B18.3 and ASTM A574 standards. It is installed using a standard hex key or socket drive and is suited for precision-fit assemblies where fine thread pitch and high clamp load are required.

This cap screw is commonly used in machinery, equipment frames, structural assemblies, and fabrication work where fine-thread engagement and high tensile strength are specified. The 3/4-16 UNF thread provides tighter thread pitch than coarse thread equivalents, making it suitable for applications requiring greater resistance to loosening under vibration or where precise torque control is essential. Mechanical contractors, millwrights, and fabricators will find this fastener appropriate for a wide range of metal-to-metal fastening tasks.

Key Features

• 3/4-16 UNF fine thread for superior vibration resistance and precise torque control
• 4-inch length under head with partial threading for deep-reach fastening applications
• 5/8-inch hex socket drive for high-torque installation with standard hex tools
• Alloy steel construction for high tensile strength and durability
• Black oxide finish for corrosion resistance and reduced light reflection in service environments
• Meets ASME B18.3 and ASTM A574 fastener standards

Compatibility

Designed as a standard 3/4-16 UNF hex socket cap screw suitable for metal-to-metal fastening applications calling for ASME B18.3 or ASTM A574 compliant hardware.

Installation Notes

Installation requires a properly sized 5/8-inch hex key or socket driver. Power down or de-energize any equipment before servicing fastener connections on mechanical assemblies. Ensure mating threads are clean and free of debris before driving to avoid cross-threading. Follow applicable equipment manufacturer torque specifications and refer to relevant ASME or ASTM guidelines for proper fastener usage.