Union U40 vintage rat trap pedal, left hand only, K10491

There are no marking (at least that I could decipher) about threading size, but I was able to successfully thread this into a known 9/16"-20 threaded crank arm.

For other pedals, vintage bike parts and more, please check out the Bike and Book Barn by clicking "Visit Store" or "See Other Items."

To combine shipping of multiple items, just add them to your shopping cart, check out and request an invoice. I will package everything together in the smallest, lightest package that will accommodate them safely and send you a total with updated shipping cost. 

Thanks for looking!