Description: Ningbo Constant Hardware Co., Ltd is a professional leader China Fasteners, Screw Plug, Pipe Plug manufacturer with high quality and reasonable price. Welcome to contact us
fasteners (860) pipe plug (9) screw plug (3) acc cleaning system (1)
Focused in hardware industry from 2007
We have all in-house manufacturing facilities like forging, heat-treatment, cold roll threading, machining which are required for making studs, bolts, nuts & washers.
Constant Products carries bolts, washers and socket screws in various sizes for applications ranging from sheet metal to wood. Our assortments of nuts and bolts, when combined with our washers and retaining rings, provide complete fastener coverage for your on-site applications.