Value Collection D39217 Hex Cap Screw 1-8x3 Grade 8 Zinc

Product Description

The VALUE COLLECTION D39217 is a fully threaded hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assembly work. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers substantial tensile strength and corrosion resistance in demanding environments. The 1-8 UNC thread size paired with a 3-inch length under the head makes it suitable for heavy-duty bolted connections where clamp load and fatigue resistance are critical. It conforms to ASME B18.2.1 and SAE J429 standards, ensuring dimensional and mechanical consistency for professional use.

This cap screw is used across a broad range of trade and industrial applications including machinery assembly, structural steel connections, automotive and equipment repair, and general maintenance work requiring a Grade 8 fastener. The UNC thread form is widely compatible with standard hex nuts and tapped holes. The zinc yellow dichromate finish provides moderate corrosion protection suitable for indoor and light outdoor environments. Minimum order quantity is 10 pieces.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Zinc yellow dichromate finish for corrosion resistance and identification
• Fully threaded along the 3-inch length under head for maximum thread engagement
• 1-8 UNC thread standard for compatibility with standard hex nuts and tapped holes
• Meets ASME B18.2.1 and SAE J429 dimensional and mechanical standards

Compatibility

Designed for use with standard 1-inch UNC hex nuts and appropriately tapped holes in Grade 8 or compatible fastener applications.

Installation Notes

Installation should be performed by qualified mechanical or structural tradespeople familiar with proper torque procedures for Grade 8 fasteners. Always use a calibrated torque wrench and follow the applicable engineering specifications or fastener torque tables for the joint material and thread size. Inspect the mating threads and hole for cleanliness and damage before installation. Do not mix Grade 8 fasteners with lower-grade nuts or hardware in high-load assemblies.