Hillman Fasteners 190183 Hex Bolt 3/8-16 X 2-1/2 in 50 Pack

Product Description

The HILLMAN FASTENERS 190183 is a 3/8-16 x 2-1/2 inch hex bolt manufactured from low carbon steel with a coarse thread pattern. Each pack contains 50 bolts, making it a practical choice for job-site restocking or bulk repair work. The 3/8-16 designation indicates a 3/8-inch nominal diameter with 16 threads per inch, a standard coarse-thread specification widely used in general structural and mechanical assemblies. Low carbon steel construction offers adequate tensile strength for most non-critical fastening applications. Licensed tradespeople and general contractors reach for this bolt size across a broad range of framing, equipment mounting, and fixture installation tasks.

This hex bolt is suited for residential and light commercial construction, mechanical equipment mounting, and general maintenance work. The coarse thread profile resists cross-threading during installation and is compatible with standard 3/8-16 nuts and tapped holes. The 50-count pack format is well matched to contractors and service technicians who need to carry a reliable quantity of this common fastener size on the truck or job site without carrying bulk hardware store inventory.

Key Features

• 3/8-16 coarse thread — 3/8-inch diameter, 16 threads per inch, standard UNC specification
• 2-1/2 inch grip length for typical through-bolting and clearance applications
• Low carbon steel construction suitable for general-duty fastening
• Hex head drive accepts standard 9/16-inch wrench or socket
• 50-count pack reduces trip frequency for high-volume install work
• Packaged in a box (BX) format — 12 boxes per case

Compatibility

Designed for use with standard 3/8-16 UNC hex nuts, flat washers, lock washers, and tapped holes conforming to the unified coarse thread series.

Installation Notes

Installation does not require a licensed trade but is commonly performed by carpenters, millwrights, and general maintenance technicians. Always use the correct 9/16-inch wrench or socket to avoid rounding the hex head. Follow applicable torque guidelines per the assembly specification or applicable building code — do not over-torque low carbon steel fasteners, as they are not rated for high-tension structural connections. If used in exterior or wet environments, consider a corrosion-resistant alternative, as this bolt is not noted as plated or coated in the product data.