Yellow 1.50 mm Threaded Bar Assortment an assortment of 60 yellow screw-on threaded bars with yellow screws, all with a body diameter of 1.50 mm. Set contains 5 different length of bars from 12 to 20 mm. Screws have a head diameter of 3.00 mm. Set includes numbers 67-46802-10, 12, 14, 16, 18 and 20. Refills are available.