Never been used to I have about 200 of these the more you buy the cheaper the postage becomes.

Have a look in my ebay SHOP for Anchors, Rigging screws, Snap Hooks, Bilge Pumps, Wire Rope, Fairleads, Chain, U Bolts, Eyebolts, Pulleys, Lifting Blocks, Cleat Hooks, Eye Plates, Sheet Eye Straps, ETC All from stock !  If I don't Stock it I will help you find it !