Hillman Fasteners 200069 Hex Cap Screw 5/16-18x1 Grade 5 100PK

Product Description

The HILLMAN FASTENERS 200069 is a Grade 5 hex cap screw intended for general mechanical and structural fastening applications in trade and industrial environments. Each screw measures 5/16-18 x 1 inch, featuring a coarse thread pitch that seats quickly and holds securely in steel, cast iron, and similar hard substrates. Manufactured from heat treated steel, these fasteners meet the strength requirements of Grade 5 classification, making them suitable for moderate-load bolted connections. This item is sold as a 100-pack, stocked for service trucks, maintenance shops, and job-site use where consistent fastener supply is essential.

These hex cap screws are used across a broad range of trade applications including HVAC equipment assembly, pipe support and strut mounting, electrical enclosure hardware, and general mechanical maintenance. The 5/16-18 coarse thread is one of the most common sizes in light-to-medium duty bolted joints and is compatible with standard 5/16-18 hex nuts and flat washers. Installers working in HVAC, plumbing, and electrical disciplines will find this size relevant for equipment mounting brackets, access panels, and structural supports.

Key Features

• Grade 5 heat treated steel construction for moderate-load fastening duty
• 5/16-18 coarse thread for fast engagement and broad nut compatibility
• 1 inch grip length suits standard bracket and panel thicknesses
• Hex cap drive compatible with standard 1/2-inch wrenches and sockets
• 100-pack quantity reduces restocking frequency on active job sites

Compatibility

Designed as a standard 5/16-18 coarse thread Grade 5 hex cap screw compatible with any 5/16-18 hex nut, coupling nut, or tapped hole conforming to unified coarse thread (UNC) standards.

Installation Notes

Installation is appropriate for any qualified trade technician performing mechanical assembly or equipment mounting. Always verify the mating thread specification before installation to confirm UNC 5/16-18 compatibility. Use a calibrated torque wrench when the joint design specifies a torque value; do not rely on feel alone for structural connections. De-energize equipment and relieve system pressure before removing or replacing fasteners on live mechanical assemblies.