Value Collection D39104 Hex Head Cap Screw 1/2-13 X 1 in Grade 8

Product Description

The VALUE COLLECTION D39104 is a fully threaded hex head cap screw designed for high-strength fastening applications. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers superior tensile strength and corrosion resistance compared to lower-grade alternatives. The 1/2-13 UNC thread size and 1-inch length under head make it a standard choice for structural assemblies, machinery, and equipment fabrication. Conformance to ASME B18.2.1 ensures dimensional consistency across production runs. Trades including millwrights, pipefitters, and mechanical contractors rely on Grade 8 fasteners where joint integrity under high load or vibration is required.

This cap screw is suited for general industrial and mechanical applications requiring a high-strength inch-series fastener. The fully threaded shank provides maximum thread engagement across the full grip length, making it appropriate for through-bolt configurations and applications where clamping force must be distributed evenly. The zinc yellow dichromate finish provides a baseline level of corrosion protection suitable for indoor and controlled-environment installations. Minimum order quantity is 25 pieces per order.

Key Features

• Grade 8 steel construction for high tensile and proof-load strength
• Zinc yellow dichromate finish provides corrosion resistance and visual identification
• Fully threaded shank per ASME B18.2.1 dimensional standard
• 1/2-13 UNC thread form for broad tooling and nut compatibility
• 1-inch length under head suits standard through-bolt and tapped-hole applications

Compatibility

Designed as a standard inch-series hex head cap screw compatible with 1/2-13 UNC tapped holes and nuts conforming to ASME and ANSI inch-series standards.

Installation Notes

Install using a standard hex socket or combination wrench sized for a 1/2-13 hex head cap screw. Always clean and inspect mating threads before installation to prevent cross-threading or galling. Follow applicable torque specifications from the equipment manufacturer or relevant structural codes when final-torquing Grade 8 fasteners. Do not substitute a lower-grade nut or mating fastener when the design calls for Grade 8 hardware.