Value Collection 198781 5/16-18 Unc Socket Cap Screw

Product Description

The VALUE COLLECTION 198781 is a 5/16-18 UNC hex socket cap screw manufactured from 18-8 stainless steel. It features a fully threaded shank with a length under head of 0.5 inches. The internal hex drive accepts a standard hex key for installation in confined spaces where a wrench cannot reach. This fastener is suited for general mechanical assembly, equipment maintenance, and fabrication work across HVAC, plumbing, electrical, and industrial applications. The 18-8 stainless steel construction provides corrosion resistance in both indoor and outdoor environments.

This screw is used in light to medium-duty fastening applications where corrosion resistance is a priority. It is compatible with standard 5/16-18 UNC threaded holes and inserts. Typical installation scenarios include panel fastening, bracket mounting, equipment assembly, and field repairs. Trade professionals in HVAC, plumbing, and electrical service commonly stock this size for general-purpose use. The UNC thread form is the standard inch-series coarse thread and mates with any 5/16-18 nut or tapped hole.

Key Features

• 5/16-18 UNC coarse thread form for compatibility with standard inch-series hardware
• Fully threaded shank maximizes thread engagement in thin or shallow applications
• 18-8 stainless steel construction resists corrosion in wet or outdoor environments
• Internal hex socket drive allows installation with a standard hex key in tight spaces
• 0.5 inch length under head suits low-profile fastening and shallow clearance installations

Compatibility

Designed for use in any standard 5/16-18 UNC tapped hole or with a matching 5/16-18 hex nut. Compatible with stainless steel and general steel assemblies requiring inch-series coarse thread fasteners.

Installation Notes

Install using an appropriately sized hex key or Allen wrench. Ensure the mating hole or nut is clean and properly tapped to the 5/16-18 UNC specification before driving the screw. Do not overtighten, as stainless steel fasteners are susceptible to galling; apply an anti-seize compound when necessary. De-energize and de-pressurize any system before performing fastener service on live equipment.