Sumner MPN: 2121 Sumner 2121 Qwik-Pin Push Button Flange Pin Pair 5/8 Inch to 1-5/8 Inch Flange Holes Qwik-Pin flange alignment pin pair from Sumner for 5/8 to 1-5/8 inch flange bolt holes. Spring-loaded pins lock flanges in correct rotation during pipe welding and assembly. Sold as a pair. $112.75 / PR Decrease Quantity of undefined Quantity Increase Quantity of undefined Add to Cart The item has been added