Christensen Fluted Bolt Knob These Knobs are made of 7075 T6 Aircraft Grade Aluminum 1.2″”Long 0.750″” Major Diameter Tapered up from a 0.380″” diameter at the threads They feature 5/16-24tpi threads that are 0.650″” deep with a .100″” recess These also feature 8 Spiral flutes for superior grip while not snagging BOLT KNOBS
