... & zink plated Preassembled for quick and easy installation Sleeve anchor with hook bolt ,zink yellow & zink plated 1, Preassembled for quick and ... the anchor diameter ,drill hole to min,embedment2,Drill hole with proper size3,Insert anchor and expand by tightening nutANCHOR SIZE ... can assure you of our best intentions and closest cooperation with you. Sleeve anchor with hook bolt