... harden shackle and covered screw holes,eight quality,self-tapping metal screws.hasp. High quality hasp: 01. Item No.300701 high ... ' requirement.07.after protective plating process on the surface of metal it can remain the original color and taste. Brightly, durably , not ... and engineer terms, Provided that the blueprint or sample , we can map, calculate and design a standard sample for customers. HASP