Thread protectors1in dia thread protectors. Available in 1/2-28 and 5/8-24 threads. Fluted or smooth.Specs1in dia .8in long. Made in the USA of 416 stainless steel. Available in 1/2-28 and 5/8-24 thread. Fluted or smooth. $45.00PriceThread size *SelectStyle*SelectQuantity*Add to CartBuy Now