Value Collection D39177 Hex Head Cap Screw 3/4-10 Grade 8

Product Description

The VALUE COLLECTION D39177 is a partially threaded hex head cap screw designed for high-strength fastening applications in industrial and mechanical assemblies. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers high tensile strength and corrosion resistance in demanding environments. It measures 3/4-10 thread size with a 3-1/4 inch length under head, conforming to ASME B18.2.1 standards. The UNC thread form ensures broad compatibility with standard tapped holes and hex nuts. Machinists, maintenance technicians, and field mechanics install these fasteners where high-load, vibration-resistant connections are required.

This cap screw is suited for heavy equipment, structural steel assemblies, agricultural machinery, and general industrial maintenance applications. The partial threading allows the unthreaded shank to bear shear loads in close-tolerance bores, making it a practical choice for bolted joints that require both clamping force and shear resistance. Sold individually per package with a minimum order quantity of 10 pieces, this fastener is appropriate for both single-repair jobs and light stocking situations.

Key Features

• Grade 8 steel construction provides high tensile and proof load ratings for demanding fastening applications
• Zinc yellow dichromate finish offers corrosion resistance and is visually distinguishable from lower-grade fasteners
• Partially threaded shank handles shear loads in precision-bored joint configurations
• UNC thread form (3/4-10) compatible with standard hex nuts, locknuts, and tapped steel components
• Conforms to ASME B18.2.1 dimensional standards for consistent fit across applications
• 3-1/4 inch length under head accommodates moderate stack heights in bolted assemblies

Compatibility

Designed as a standard UNC Grade 8 hex head cap screw for use with any 3/4-10 tapped hole, hex nut, or threaded insert conforming to ASME B18.2.1 inch-series fastener specifications.

Installation Notes

Installation is performed by mechanical, maintenance, or millwright trades using a standard 1-1/8 inch hex wrench or socket. Always confirm mating thread condition and hole alignment before installation. Follow applicable torque guidelines from engineering specifications or published Grade 8 fastener torque tables for the joint material and lubrication state. De-energize and lock out any equipment before replacing fasteners in powered assemblies.