Hillman Fasteners 220163 Grade 8 Hex Cap Screw 3/8x5

Product Description

The HILLMAN FASTENERS 220163 is a Grade 8 hex cap screw with a coarse thread (NC) profile and a yellow zinc finish, sized at 3/8 inch diameter by 5 inches in length. Grade 8 hardware is heat-treated alloy steel rated for high-strength fastening applications where standard Grade 5 or Grade 2 hardware is insufficient. The yellow zinc coating provides corrosion resistance and serves as a visual identifier for Grade 8 classification. This fastener is used by contractors, maintenance technicians, and trade professionals who need reliable, high-load fastening in mechanical and structural assemblies.

This hex cap screw is suited for heavy-duty mechanical applications including equipment mounting, structural connections, and industrial machinery assembly. The coarse thread form allows for faster installation and better resistance to cross-threading in field conditions. The 3/8 inch diameter and 5 inch length make it appropriate for applications requiring deep fastener engagement through thicker substrates or stacked materials.

Key Features

• Grade 8 alloy steel construction for high-strength, high-torque applications
• Yellow zinc finish for corrosion resistance and Grade 8 visual identification
• Coarse thread (NC) profile for faster installation and cross-thread resistance
• 3/8 inch diameter by 5 inch length for deep fastening engagement
• Hex cap head design accepts standard hex wrenches and sockets

Compatibility

Designed as a standard 3/8 inch-16 UNC Grade 8 hex cap screw compatible with any application requiring coarse-thread, high-strength fastening at this diameter and length.

Installation Notes

Installation should be performed with the appropriately sized socket or combination wrench. Always verify the mating thread specification matches coarse thread (NC) before installation to avoid thread damage. Follow applicable torque specifications per engineering references or project requirements for Grade 8 fasteners at this diameter. Inspect the fastener and mating threads for damage before assembly.