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The VALUE COLLECTION -30330-31/2 is a 3/4-16 UNF hex head cap screw designed for high-strength fastening applications requiring fine-thread engagement. Manufactured from Grade 5 steel with a zinc-plated finish, this fastener delivers solid tensile strength and basic corrosion resistance suitable for mechanical assemblies, equipment mounting, and structural connections. The 1-1/8 inch hex drive size accommodates standard combination wrenches and sockets. At 3.5 inches in length under head, it provides sufficient thread engagement for heavy-duty clamping in medium-thickness material stacks. Sold in a package of 25 units, this screw is a standard stocking item for maintenance and repair operations.
This fastener is suited for general industrial, mechanical, and equipment service applications where a fine-thread 3/4-16 UNF pattern is specified. Typical uses include machinery reassembly, bracket and flange fastening, and replacement of worn or damaged hardware in trade service environments. The zinc-plated finish provides a base level of corrosion protection appropriate for indoor and sheltered installations. HVAC equipment mounting, electrical panel support structures, and plumbing equipment bases are common service scenarios where Grade 5 fasteners of this thread size are specified.
Designed as a standard 3/4-16 UNF Grade 5 hex head cap screw suitable for any application specifying that thread size, length, and material grade.
Installation should be performed by a qualified mechanic or trade technician using appropriate hand or power tools rated for the fastener size. Always power down and de-energize or de-pressurize the equipment being serviced before fastener removal or installation. Use a calibrated torque wrench and follow the equipment manufacturer torque specifications for 3/4-16 Grade 5 fasteners. Inspect mating threads for damage or contamination before assembly to ensure proper engagement and clamping force.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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