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The VALUE COLLECTION HCI20430400-025BX is a Grade 2 steel hex head bolt with a 7/16-14 UNC thread and a 4-inch length under head. It features partial threading and an uncoated, bright finish, meeting ASTM A307 fastener standards. This bolt is a general-purpose industrial fastener suited for structural and mechanical assembly applications where a standard-strength, uncoated steel bolt is specified. It is sold in a minimum order quantity of 25 units and is packaged as a single-count unit.
This bolt is appropriate for a wide range of light to moderate structural fastening tasks in construction, HVAC equipment installation, mechanical systems assembly, and general trade work. The 7/16-14 UNC thread size is a common inch-series thread, making it broadly compatible with standard hex nuts and threaded inserts of the same specification. Partial threading allows for clamping applications where a smooth shank section is needed between the bearing surface and the threaded engagement zone.
Designed as a standard inch-series hex head bolt for use with 7/16-14 UNC hex nuts, washers, and threaded hardware in general mechanical and structural fastening applications.
Install using a standard hex wrench or socket set appropriate for the bolt head size. Always ensure mating threads are clean and free of debris before installation. Follow applicable structural or equipment torque specifications from the system manufacturer or relevant codes such as AISC or equipment OEM guidelines. Do not use this uncoated fastener in applications requiring corrosion resistance without appropriate protective measures.
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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