Value Collection D39089 Hex Head Cap Screw 7/16-14

Product Description

The VALUE COLLECTION D39089 is a Grade 8 steel hex head cap screw with a 7/16-14 UNC thread and a 3-1/2 inch length under head. It is partially threaded and finished with a zinc yellow dichromate coating for corrosion resistance. Manufactured to ASME B18.2.1 standards, this fastener is suited for high-strength bolted assemblies where a reliable clamping force is required. Grade 8 steel provides higher tensile and proof-load ratings compared to lower-grade fasteners, making it appropriate for demanding structural and mechanical connections in trade and industrial applications.

This cap screw is used in a wide range of mechanical, structural, and equipment-assembly applications where inch-series UNC fasteners are specified. Typical installation scenarios include equipment mounting, bracket fabrication, and general mechanical assembly in HVAC, plumbing, and light industrial settings. The partially threaded shank allows the unthreaded portion to bear shear loads, which is important in applications where the fastener passes through a clearance hole before engaging a tapped hole or nut.

Key Features

• Grade 8 steel construction for high tensile and proof-load strength
• 7/16-14 UNC thread for broad compatibility with standard inch-series nuts and tapped holes
• Partially threaded shank to handle shear loads at the joint interface
• Zinc yellow dichromate finish provides a baseline level of corrosion resistance
• Meets ASME B18.2.1 dimensional standards for consistent fit and interchangeability

Compatibility

Designed as a standard inch-series hex head cap screw compatible with any 7/16-14 UNC tapped hole or standard hex nut per ASME B18.2.1 specifications.

Installation Notes

Installation is typically performed by mechanical or general trade technicians using a standard hex wrench or socket. Always verify the mating thread is 7/16-14 UNC before driving the fastener. Do not mix Grade 8 fasteners with lower-grade nuts or threaded inserts, as mismatched grades can compromise joint integrity. Follow the applicable equipment manufacturer torque specifications when final tightening.