1-1/8″ Square slack washer. Takes away 1/4″ spacing on shaft. Fits all discs with 1-1/8″ square axles Our eBay Store About Us Contact Us Add to Favorite Sellers Pack of 5 – Disc Harrow Slack Washer Fits 1-1/8″ Square Disc Axles 37.95 1-1/8″ Square slack washer. Takes away 1/4″ spacing on shaft. Fits all discs with 1-1/8″ square axles.