Value Collection 406134PS Serrated Flange Bolt 5/16-18 Unc

Product Description

The VALUE COLLECTION 406134PS is a serrated flange bolt designed for secure fastening in applications where vibration resistance and load distribution are critical. Built to a 5/16-18 UNC thread standard, this bolt is fully threaded over a 2-1/2 inch length under head, providing maximum thread engagement across the full grip length. The serrated flange eliminates the need for a separate lock washer by biting into the mating surface under torque. Manufactured from AISI C1022 steel to Grade 2 specification and finished with a zinc plating for basic corrosion protection, this bolt suits general mechanical assembly work performed by maintenance technicians, millwrights, and trade professionals.

This serrated flange bolt is suited for general-purpose structural and mechanical assembly in residential, commercial, and light industrial settings. The hex drive allows installation with standard hex wrenches or sockets. The serrated flange distributes clamping load over a wider bearing area while the serrations resist loosening under dynamic loads. Typical applications include equipment mounting, panel attachment, and bracket fastening where a positive anti-rotation feature is required without adding a separate locking element.

Key Features

• 5/16-18 UNC fully threaded configuration for maximum thread engagement
• Serrated flange provides integrated vibration resistance without a separate lock washer
• Flange diameter of 0.686 to 0.706 inches increases bearing surface area
• Grade 2 AISI C1022 steel construction meets standard mechanical fastener requirements
• Zinc plating provides baseline corrosion resistance for indoor and sheltered installations
• Hex drive compatible with standard wrenches and sockets

Compatibility

Designed as a standard 5/16-18 UNC serrated flange bolt suitable for general mechanical and structural fastening applications where a hex-drive, fully threaded flange bolt of this thread size and length is specified.

Installation Notes

Installation should be performed by qualified technicians following applicable mechanical assembly standards. Ensure mating threads are clean and free of debris before installation. Apply torque with a calibrated torque wrench to the value specified in the equipment or assembly documentation — do not rely on feel alone. The serrated flange requires direct contact with the mating surface to function correctly; do not stack additional washers between the flange and the work surface.