Value Collection 583795PS 5/16-18x6in Round Head Slotted Screw

Product Description

The VALUE COLLECTION 583795PS is a 5/16-18 x 6-inch machine screw engineered for reliable fastening in industrial, mechanical, and structural applications. Manufactured from alloy steel with a zinc finish, it provides corrosion resistance suited to general-purpose environments. The round head profile seats flush against surfaces without a washer, and the slotted drive accepts standard flat-blade screwdrivers. Thread size follows the Unified National Coarse (UNC) standard at 5/16-18, meaning 5/16-inch nominal diameter with 18 threads per inch. Length under head measures 6 inches. Grade 2 designation reflects a mid-range carbon steel strength class appropriate for light to moderate load fastening tasks.

This machine screw is used across a wide range of trade and maintenance applications including HVAC equipment assembly, panel fabrication, pump and motor mounting, and general mechanical repair. The UNC thread form is the most common inch-series fastener standard in North American trade work, making this screw compatible with the majority of tapped holes and threaded inserts encountered in the field. It is installed by machinists, millwrights, HVAC technicians, electricians, and maintenance trades wherever a round-head slotted fastener is called for.

Key Features

• 5/16-18 UNC thread — the standard coarse-pitch inch-series thread for broad compatibility
• 6-inch length under head for deep through-bolting and thick-stack assemblies
• Round head profile distributes load without a washer
• Slotted drive for use with flat-blade screwdrivers and common hand tools
• Alloy steel construction for improved strength over low-carbon alternatives
• Zinc finish provides baseline corrosion protection in general-purpose environments

Compatibility

Designed as a standard UNC machine screw replacement suitable for any application requiring a 5/16-18 thread, round head, slotted drive fastener with a 6-inch length under head.

Installation Notes

Installation requires a flat-blade screwdriver or appropriate bit matched to the slot width to avoid cam-out and head damage. De-energize and lock out any equipment before fastener replacement on powered machinery. Verify thread engagement depth and inspect the mating tapped hole for damage or cross-threading before driving. Follow applicable ASME or equipment manufacturer torque guidelines for the fastener grade and size.