Value Collection D39481 Hex Head Cap Screw 3/4-16 4-1/2 in Grade 8

Product Description

The VALUE COLLECTION D39481 is a 3/4-16 hex head cap screw designed for high-strength fastening applications across industrial, mechanical, and trade environments. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers elevated tensile strength and corrosion resistance suitable for demanding installations. The screw measures 4.5 inches under the head and features a partially threaded shank, which provides improved clamping force in bolted joint assemblies. It conforms to ASME B18.2.1 dimensional standards. Licensed tradespeople, millwrights, pipefitters, and mechanical contractors working with structural assemblies, equipment mounting, and heavy-duty connections will find this fastener appropriate for their service work.

This hex head cap screw is suited for use in industrial machinery, structural steel connections, heavy equipment assembly, and mechanical installations requiring high-strength fasteners. The 3/4-16 UNF thread specification is a fine-thread designation, providing greater thread engagement and resistance to loosening under vibration compared to coarse-thread equivalents. The partially threaded design is particularly well-matched for through-bolt applications where a grip length is needed between mating components. Sold individually, with a minimum order quantity of 10 units.

Key Features

• Grade 8 steel construction for high tensile and proof load capacity
• Zinc yellow dichromate finish provides corrosion resistance and visual identification of Grade 8 rating
• 3/4-16 UNF fine-thread specification for improved vibration resistance and thread engagement
• Partially threaded shank allows for full clamping load across the grip length
• Conforms to ASME B18.2.1 dimensional standards for hex head cap screws
• 4.5-inch length under head suits through-bolt and deep clearance applications

Compatibility

Designed as a standard ASME B18.2.1 hex head cap screw suitable for use in any application requiring a 3/4-16 UNF partially threaded fastener in Grade 8 steel.

Installation Notes

Installation should be performed by qualified tradespeople familiar with proper fastener torque procedures for Grade 8 hardware. Always verify thread engagement depth and joint material compatibility before installation. Use of a calibrated torque wrench is standard practice when installing high-strength fasteners in structural or mechanical assemblies. Follow all applicable equipment manufacturer specifications and relevant mechanical codes for fastener selection and installation procedures.