Value Collection D30170-21/2 Hex Head Cap Screw

Product Description

The VALUE COLLECTION D30170-21/2 is a fully threaded hex head cap screw designed for general fastening applications in mechanical, structural, and trade installations. It features a 1-8 UNC thread size and a 2.5-inch length under head, manufactured from Grade 5 steel with a zinc-plated finish for basic corrosion resistance. This fastener meets ASME B18.2.1 and SAE J429 standards, making it suitable for applications where a recognized grade specification is required. It is installed using standard hex drive or socket tooling and is a common stock item for maintenance, repair, and fabrication work.

This cap screw is used across residential and commercial trade work wherever a coarse-thread inch-series fastener is needed. Typical applications include HVAC equipment mounting, electrical panel and enclosure assembly, plumbing fixture support structures, and general mechanical fabrication. The zinc plating provides surface protection suitable for interior and dry-service environments. It is sold individually with a minimum order quantity of 10 units.

Key Features

• 1-8 UNC fully threaded coarse-thread configuration for standard inch-series fastening
• 2.5-inch length under head suits medium-depth clamping applications
• Grade 5 steel construction meets SAE J429 mechanical property requirements
• Zinc-plated finish provides basic corrosion protection for interior use
• Conforms to ASME B18.2.1 dimensional standards for hex head cap screws

Compatibility

Designed as a standard inch-series UNC hex head cap screw for use in any application requiring a 1-8 thread, 2.5-inch fastener meeting ASME B18.2.1 and SAE J429 specifications.

Installation Notes

Install using a standard hex wrench, box-end wrench, or socket driver sized for the 1-8 hex head. Ensure mating threads are clean and free of debris before assembly. For structural or load-bearing connections, verify the Grade 5 rating meets the design load requirements per applicable codes. Do not use in wet or corrosive environments where higher-grade or stainless fasteners are specified.