Found! Profile Roll-On Pegs circa 1983-85.
VINTAGE KNURLED THREAD-ON ALUMINUM PEGS “NOS” ALUMINUM PROFILE PEGS CIRCA 1983-1985 – Made in the USA – Knurled finish – Thread-on – Fits most 3/8″ to 24 threaded hub axles – Substitutes 3/8″ nut – Sold as a set