Standard Locknut, LLC

Standard Locknut is a precision manufacturer based in Westfield, Indiana, specializing in high-quality bearing accessories and components for demanding industrial applications. With over 75 years of manufacturing excellence, our product line includes locknuts, lock washers, adapter sleeves, pillow blocks, and bearing housings used in sectors such as mining, recycling, steel, and power transmission. All final manufacturing and assembly operations are performed at our Indiana facility, where we are committed to continuous improvement, quality craftsmanship, and delivering best-in-class lead times. Standard Locknut is proudly Made in Indiana.