Value Collection D39381 Hex Head Cap Screw 7/16-20 X 1.5 in

Product Description

The VALUE COLLECTION D39381 is a fully threaded hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. 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 7/16-20 UNF thread size and 1.5-inch length under head make it well suited for precision-fit bolted connections where fine thread engagement and clamping force are critical. Machinists, millwrights, maintenance technicians, and field mechanics install this type of fastener across a wide range of equipment and fabrication tasks.

This cap screw is used in heavy-duty bolted assemblies requiring a fine-thread fastener with high proof load capacity. Typical applications include automotive driveline components, machinery frames, hydraulic system mounting, agricultural equipment, and structural steel connections where Grade 8 strength is specified. The zinc yellow dichromate coating provides a moderate level of corrosion protection appropriate for indoor and sheltered outdoor environments. Compliance with ASME B18.2.1 and SAE J429 standards ensures dimensional accuracy and material performance meet recognized industry requirements.

Key Features

• Grade 8 steel construction provides high tensile and proof load strength for demanding fastening applications
• 7/16-20 UNF fine thread offers increased thread engagement and resistance to loosening under vibration
• Fully threaded along the 1.5-inch shank length for maximum thread engagement flexibility
• Zinc yellow dichromate finish provides corrosion resistance and visual identification as a Grade 8 fastener
• Meets ASME B18.2.1 dimensional standards and SAE J429 material and mechanical property standards

Compatibility

Designed as a standard UNF hex head cap screw suitable for any application specifying a 7/16-20 Grade 8 fully threaded fastener per ASME B18.2.1 and SAE J429.

Installation Notes

Installation should be performed by a qualified technician using a properly sized hex socket or open-end wrench. Always confirm the mating thread is 7/16-20 UNF before installation to avoid cross-threading. Clean and inspect the threaded hole before fastening. Apply torque according to the equipment manufacturer's specification for Grade 8 fasteners of this thread size; do not substitute a lower-grade fastener in a Grade 8 application.