snippet: Shop Threaded Stopper Blocks - 1018 Carbon Steel, Trivalent Chromate, with Counterbores from MISUMI (STBS12-50). MISUMI USA has all of your Blocks & Brackets for Adjusting Screws needs covered, with over 3.8M high quality products and 80 sextillion configurable parts available with fast shipping and low pricing. (Page 1)