Value Collection D30057 Hex Head Cap Screw 3/8-16

Product Description

The VALUE COLLECTION D30057 is a 3/8-16 hex head cap screw measuring 1-3/4 inches under the head, manufactured from Grade 5 steel with a zinc-plated finish. It features partial threading along the shank and conforms to ASME B18.2.1 dimensional standards. The Unified National Coarse (UNC) thread form provides reliable clamping in general-purpose fastening applications. This screw is a standard inch-series fastener used across mechanical assembly, structural mounting, and equipment fabrication. Maintenance technicians, millwrights, and trade professionals working in HVAC, plumbing, electrical, and industrial settings will find this fastener suited to a wide range of bolted joint applications.

This screw is appropriate for use in both light structural and mechanical fastening tasks where a Grade 5 steel fastener meets load requirements. The zinc plating provides a basic level of corrosion resistance suitable for indoor and sheltered environments. Partial threading is typical where a smooth shank section is needed for shear resistance or to avoid thread engagement across a joint interface. It is commonly used in equipment panels, brackets, and mechanical assemblies found in residential and commercial trade work.

Key Features

• 3/8-16 UNC thread form for broad compatibility with standard inch-series nuts and tapped holes
• 1-3/4 inch length under head for moderate-depth fastening applications
• Grade 5 steel construction provides mid-range tensile strength for general mechanical use
• Zinc-plated finish offers basic corrosion resistance in dry or sheltered environments
• Partially threaded shank supports applications requiring a smooth grip section
• Conforms to ASME B18.2.1 dimensional standards for consistent fitment and interchangeability

Compatibility

Designed as a standard inch-series hex head cap screw compatible with any 3/8-16 UNC tapped hole or hex nut conforming to ASME B18.2.1 specifications.

Installation Notes

Install using a standard hex wrench or socket driver sized for a 3/8-inch hex head cap screw. De-energize and lock out any equipment before fastening components in electrical or mechanical enclosures, following OSHA lockout/tagout procedures. Do not exceed the rated torque range for Grade 5 fasteners as specified in applicable mechanical or structural codes. Inspect the mating threads for damage or contamination before assembly to ensure full thread engagement.