Check the listing for details. Black Plastic Threaded (brass) Knob 40 mm Dia M12 x 1.75 mm Thread. Condition: New. Listed at 6.67 USD. We aim to ship within 1 working day of payment . We usually ship using standard Royal Mail or Parcelforce services . If your order is more urgent most of our listings offer an express delivery option that you can select during checkout We have been supplying Engineering tools Mail Order for 30 Years , a family business , we started from a small converted garage in St Albans and have grown steadily over the years and are now operating from our new 10,000 square foot warehouse in Dunstable . Mail order is still our speciality , sending several hundred orders per day to our satisfied customers around the world , Although most of our business comes via our 8 Tooling Websites and Ebay - we also welcome personal callers to browse our thousands of products at our showroom / warehouse in Dunstabl.