Value Collection -30330-4 Hex Head Cap Screw 3/4-16 X 4 in

Product Description

The VALUE COLLECTION -30330-4 is a hex head cap screw designed for general-purpose fastening in mechanical, structural, and industrial applications. It features a 3/4-16 UNF thread size with a 4-inch length under the head, manufactured from Grade 5 steel with a zinc-plated finish for corrosion resistance. The 1-1/8-inch hex drive accepts standard hex sockets and wrenches. This fastener is sold in a package quantity of 25 and is suited for installation by mechanical contractors, millwrights, pipefitters, and general maintenance trades working with inch-system assemblies.

This screw is appropriate for medium-strength fastening in a wide range of commercial and industrial settings. The UNF thread form provides a fine-pitch engagement suitable for applications requiring greater tensile strength and vibration resistance than a coarse-thread fastener of the same diameter. Typical uses include equipment mounting, bracket attachment, and structural connections where a Grade 5 steel fastener meets the required load rating.

Key Features

• 3/4-16 UNF fine-pitch thread for high tensile strength and vibration resistance
• 4-inch length under head accommodates thicker assemblies and deep clearance holes
• Grade 5 steel construction meets standard medium-strength fastener requirements
• Zinc-plated finish provides baseline corrosion protection in dry and mildly humid environments
• 1-1/8-inch hex head is compatible with standard socket and open-end wrenches
• Package quantity of 25 supports job-lot purchasing for service and installation work

Compatibility

Designed as an OEM-style replacement or general-use hex head cap screw for inch-system mechanical assemblies requiring a 3/4-16 UNF thread and 4-inch grip length in Grade 5 steel.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or maintenance technician following applicable industry fastener standards. Always de-energize and lock out equipment before replacing or tightening fasteners on powered machinery. Use a calibrated torque wrench and follow the engineer-of-record or equipment manufacturer torque specifications for the specific joint — do not rely on generic torque tables alone. Inspect mating threads for damage before installation and replace any fastener that shows thread deformation or corrosion.