https://www.throttleaddiction.com/collections/rocker-box-components/products/eastern-motorcycle-parts-rocker-arm-lock-nuts-4-pack-v-13-241
Rocker Arm Lock Nuts - Red - Shovelhead & Ironhead 5/16"-24 x 1/2" hex style Made in the USA Sold in packs of 4 Replacement OEM...
rocker armlock nutsredshovelheadamp
https://web.archive.org/all/20160327115326/http:/oemhardware.ca/nuts.htm
Hex Nuts, Oval Lock Nuts,Super Grip Nuts and more at OEM Hardware. Call us first at 1.800.663.6554.
hex nutsovallocksupergrip