Value Collection D39061 Hex Head Cap Screw 3/8-16 X 2-3/4 in

Product Description

The VALUE COLLECTION D39061 is a partially threaded hex head cap screw designed for high-strength mechanical 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 hardware. The 3/8-16 UNC thread pattern and 2-3/4 inch length under head make it a dependable choice for structural assemblies, equipment mounting, and heavy-duty mechanical connections. The partial threading is intentional, providing a smooth shank section that resists shear forces in load-bearing joints. Machinists, millwrights, and maintenance technicians routinely specify Grade 8 fasteners for critical connections.

This cap screw is suited for industrial, commercial, and heavy-duty residential mechanical applications where standard Grade 2 or Grade 5 hardware is insufficient. Common uses include equipment frames, motor mounts, HVAC structural brackets, compressor bases, and general fabrication work requiring a high-clamp-load fastener. The 3/8-16 UNC threading is one of the most widely used coarse-thread sizes in inch-standard mechanical assemblies, ensuring broad tool and nut compatibility across job sites and shops.

Key Features

• Grade 8 steel construction provides high tensile and yield strength for demanding load-bearing applications
• Zinc yellow dichromate finish offers corrosion resistance and a distinctive gold-tone identification color standard for Grade 8 fasteners
• Partially threaded shank resists shear forces in structural and mechanical joints
• 3/8-16 UNC coarse thread pattern for broad compatibility with standard inch-system hardware
• Conforms to ASME B18.2.1 dimensional standards for consistent fit across tools and mating hardware

Compatibility

Designed as a standard inch-series hex head cap screw compatible with 3/8-16 UNC threaded nuts, inserts, and tapped holes in steel, iron, and structural assemblies conforming to inch-standard fastener specifications.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a standard hex wrench or socket set. Always use a calibrated torque wrench and follow the applicable fastener torque specification table for Grade 8 hardware at 3/8-16 thread size. Inspect mating threads and bearing surfaces for damage before assembly. Do not mix Grade 8 fasteners with lower-grade nuts, as mismatched hardware can compromise joint integrity.