Holo-krome 730003020 Hex Socket Cap Screw 3/4-16 Unf

Product Description

The HOLO-KROME 730003020 is a hex socket cap screw designed for high-strength fastening in precision mechanical assemblies. It features a 3/4-16 UNF thread — a fine-pitch thread series suited for applications requiring tight clamping force and vibration resistance. The screw is fully threaded along its 1-1/4 inch length under head and accepts a 5/8 inch hex drive. Constructed from alloy steel with a black oxide finish, it meets ASME B18.3 and ASTM A574 standards. Machinists, millwrights, and mechanical contractors install this type of fastener where controlled torque and a low-profile socket-drive head are required.

This cap screw is suited for use in industrial equipment, machine frames, fixtures, and mechanical assemblies where a fine-thread 3/4-16 UNF fastener is specified. The fully threaded shank provides maximum thread engagement across the entire grip length, making it appropriate for through-hole and short-reach tapped-hole applications. Black oxide coating provides mild corrosion resistance and reduces galling during installation.

Key Features

• 3/4-16 UNF fine-pitch thread for high clamping load and vibration resistance
• Fully threaded shank — 1-1/4 inch length under head
• 5/8 inch hex socket drive for use with standard Allen or hex-key tooling
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide finish for mild corrosion protection and reduced galling
• Conforms to ASME B18.3 socket cap screw standard

Compatibility

Designed as a standard ASME B18.3 hex socket cap screw for tapped-hole applications specifying a 3/4-16 UNF fully threaded fastener in alloy steel.

Installation Notes

This fastener is installed by machinists, millwrights, or mechanical contractors using a 5/8 inch hex key or Allen driver. De-energize and lock out all equipment before replacing or tightening structural fasteners in machinery. Apply thread lubricant or anti-seize where required by the equipment manufacturer to achieve accurate torque values. Consult the equipment service manual for torque specification — do not estimate torque on structural joints.