Hillman Fasteners 190171 Hex Bolt 3/8-16 X 1-1/2 in 100 Pack

Product Description

The HILLMAN FASTENERS 190171 is a 3/8-16 x 1-1/2 inch hex bolt manufactured from low carbon steel with a coarse thread pattern. Each pack contains 100 bolts, making this a practical bulk option for contractors, maintenance crews, and tradespeople who need reliable general-purpose fasteners on hand. The 3/8-16 designation indicates a 3/8-inch nominal diameter with 16 threads per inch, conforming to the UNC (Unified National Coarse) thread series. Low carbon steel construction offers adequate strength for standard structural and mechanical applications where extreme hardness or corrosion resistance is not required.

These hex bolts are suited for general construction, equipment assembly, HVAC equipment mounting, electrical enclosure installation, and mechanical maintenance tasks. Their coarse thread profile allows for faster installation and better resistance to cross-threading in field conditions. The 100-piece pack quantity is appropriate for job-site use or shop stock replenishment. Sold in cases of 12 packs per box.

Key Features

• 3/8-16 UNC coarse thread for fast engagement and reduced cross-threading risk
• 1-1/2 inch grip length suits standard through-bolt and structural fastening applications
• Low carbon steel construction provides reliable performance in general-duty applications
• 100 bolts per pack for bulk job-site or shop inventory use
• Hex drive head is compatible with standard wrenches and sockets

Compatibility

Designed as a general-purpose UNC hex bolt for use with standard 3/8-16 nuts and threaded inserts in residential and light commercial construction, mechanical assembly, and maintenance applications.

Installation Notes

Installation is performed with a standard hex wrench, open-end wrench, or socket set sized for a 3/8-inch hex bolt head. Always pair with a compatible 3/8-16 nut or threaded insert and use a flat washer where surface bearing area or pull-through resistance is a concern. Follow applicable code torque guidelines for the specific application. Inspect threads for damage before installation to avoid galling or incomplete engagement.