NINGBO S&D METALWORK CO.,LTD. is a professional fastener manufacture in NINGBO, CHINA. We deal with full-line products of fasteners sold to the worl**ide, including bolts, nuts, washers, threaded rods, cylinder head, cylinder end, pile shoe, hand winches, dock cleats, dock har**are, etc. with raw materials including: Carbon steel, alloy steel, stainless steel and brass. The Surface treatments are available for: plain, zinc plated, black finish, zinc yellow, hot DIP ga**anized and dacromet, etc. And we also offer other product according to your CAD drawing and samples. Sincerely welcome you come to custom design.All our products are produced according to the ASTM,DIN,ISO,SAE INTERNA**ONAL STANDARD specification. We insist the high quality standard and the company's strict management system, in order to maintain our product's reputation and safety request. We will offer the most reasonable prices to keep our customers in the most competitive situations. Our goal is with you to establish a win-win business model and with our partners established long-term business relationship. We are looking forward to cooperating with you and our cooperation will bring great fortune to each of us. So if you are interested in our products or other better service, please don’t hesitate to contact us. Our Measurement and Test Capabilities Include: ●Tensile Strength ●Yield Strength ●Proof Load ●Hardness ●Thread Major Diameter ●Linear Measurements ●Diameter Measurements ●Plating thickness