245188 - Miller .312-18 x 1.000 Plated Steel Carriage Bolt

Genuine Miller OEM Replacement Hardware

The Miller 245188 is a specialized Carriage Bolt designed to meet the rigorous specifications of Miller Electric welding equipment. In the maintenance and repair of industrial machinery, the integrity of every fastener plays a critical role in the overall safety and durability of the unit. This bolt features a thread size of .312-18 (equivalent to the standard 5/16-18 UNC coarse thread) and a length of 1.000 inch, making it a precise replacement for specific assembly points on Miller power sources, wire feeders, and running gear.

Manufactured from high-grade steel, this fastener is engineered to withstand the vibration and thermal cycling common in welding environments. The "PLD" designation indicates a plated finish—typically zinc or similar protective coating—which provides essential resistance against oxidation and corrosion. This is particularly important in shop environments where humidity and atmospheric contaminants can degrade untreated hardware. The carriage bolt design is characterized by its smooth, rounded head and a square section immediately beneath it. This square neck seats into a corresponding square hole in the metalwork, self-locking the bolt to prevent rotation while the nut is tightened from the opposite side. This feature is essential for single-tool assembly and security.

Using non-OEM hardware in precision equipment can lead to fitment issues, stripped threads, or compromised structural rigidity. The Miller 245188 ensures that the tensile strength and shear resistance match the original engineering requirements of your machine. Whether you are performing a routine overhaul, replacing a damaged panel, or reassembling a unit after internal service, utilizing genuine Miller parts guarantees that the equipment remains compliant with factory standards. This component is supplied as a single unit, allowing MRO technicians to order the exact quantity required for the repair task at hand.