The Hendrickson PRT-00131 or PRT00131 is a serrated wheel stud with an M18 x 1.5 thread specification, designed for heavy-duty truck wheel-end applications. The serrated shank locks securely into the hub flange, resisting rotation during installation and service. Sold individually, this is a genuine Hendrickson part from Pro Gear and Transmission. If you need to verify fitment for your specific axle or hub configuration, give us a call before ordering.FeaturesGenuine Hendrickson part number PRT-00131 or PRT00131M18 x 1.5 thread specificationSerrated shank for positive anti-rotation fit in hub flangeHeavy-duty wheel-end applicationSold individually (each)Tech SpecsThread Size: M18 x 1.5Shank Type: SerratedPart Number: PRT-00131 or PRT00131Sold As: Each