Concave Square Lock Nut:
Used as a locking nut on the back of nuts.
Hot dip galvanized to meet ASTM Specification A153 Class C.
When concave side of locknut bears down on top of square nut, is flattened, deflecting the nut threads and causing them to firmly grip the bolt threads.
Cixi Goldring Hardware Fasteners Co., Ltd. is one of fasteners manufacturer whose products have been well sold to all over the world.
Four manufacture facilities, equipped with modernized quality control systems and assemble lines, have been set up, specialized in Hose Clamp, Pipe clamp, Special Fasteners, Rivets, Washers, Bolts, Nuts, Screws Pins, Socket, Set Screws, Standoff, Threaded rod, Hangers, Nails, Inserts, etc.
Feature
Our products are made by excellent steel, stainless steel, brass, copper, bronze, titanium, nickel, material with advantages as skillful technique, strict test, safety, reliablity, rootproof force, strong fastening force and excellent endurance.
We sincerely hope to establish and develop business cooperation with demestic and foreign customers and friends under the condition of equal and mutual benefits. We are ready to provide our customers with excellent goods and superior services by our intelligence, efforts and good credit.
