Value Collection R57001228 Hex Head Cap Screw 3/8-16

Product Description

The VALUE COLLECTION R57001228 is a partially threaded hex head cap screw designed for fastening applications that require corrosion-resistant hardware in inch-standard assemblies. Sized at 3/8-16 thread with a 9.5-inch length under head, this fastener is manufactured from 18-8 stainless steel and left uncoated, making it well-suited for environments where rust resistance and material compatibility matter. The UNC (Unified National Coarse) thread form seats reliably in standard tapped holes and mating nuts. Partial threading along the shank allows for shoulder-like clamping behavior in bolted joint applications.

This cap screw fits into general mechanical assembly, structural fastening, and equipment fabrication scenarios where stainless steel hardware is specified. The 3/8-16 UNC thread is a common size across HVAC, plumbing, pool equipment, and light structural work, making this screw a practical stock item for service technicians and maintenance crews working across multiple trade disciplines. The 9.5-inch length under head accommodates thicker assemblies or applications requiring extended bolt engagement.

Key Features

• 18-8 stainless steel construction provides corrosion resistance in wet or outdoor environments
• Partially threaded shank allows controlled clamping and shear-load distribution
• 3/8-16 UNC thread is a standard size compatible with common tapped holes and nuts
• Uncoated finish maintains dimensional accuracy without plating buildup
• 9.5-inch length under head suits deep-reach or thick-stack fastening applications
• Inch measurement system for compatibility with standard imperial tooling and hardware

Compatibility

Designed as a standard inch-system hex head cap screw suitable for use with 3/8-16 UNC tapped holes and mating hex nuts across general mechanical, structural, and trade equipment assembly applications.

Installation Notes

Installation should be performed by a qualified technician or mechanic using a standard 9/16-inch hex wrench or socket sized for a 3/8-inch hex head cap screw. Ensure the mating thread or nut is also 3/8-16 UNC before installation to avoid cross-threading. De-energize or depressurize any system before fastener replacement or removal. Stainless steel fasteners can be prone to galling during installation — applying an appropriate anti-seize compound to the threads is a common field practice.