These throttle linkage rods are made from 1/4" diameter mild steel and have 1/4-28 right hand threads on each end. They can be easily bent to fit your application and are gold zinc plated. The throttle linkage female rod end fits come complete with carburetor bushings to fit Holley style carburetor's. Linkage rod and rod end sold separately. "WARNING: This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm."