Found! Profile Roll-On Pegs circa 1983-85.
https://www.profileracing.com/product/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