Product size: M3-M50 Machining size:X150 under, Length 800mm at most Material: carbon steel, stainless steel,copper,brass,etc. Finished:zinc plated, nickel plated,chrome,decomet,phosphate,powder coating,zinc nickel plated &more. Packaging:carton,euro pallet,custom pallet,custom crate,etc. Uni-protech fasteners(suzhou)co.,ltd was established in 2010 by Uni-protech industry co.,ltd(Taiwan). We have sourced in China since 1998, besides variety of fasteners sources in, we have hot forming&machining facilities in Suzhou,China to provide customers a better,wider quality products and services. Our whole group is certified with ISO9001 and have a lab certified with ISO17025 in Taiwan to guarantee goods quality. Our main products: Mining fasteners(Mining & tunnel construction fasteners),Truck wheel nuts(wheel nut,DIN74361 standard nut, China rail road cargo locking nut),Metal prevailing torque parts. Products are made to be customized according to requirement. Welcome to your enquiry!