With the managing principle of "exploration,Website:http://www.chinajinrui.net, innovation and pursuit of excellent quality",the company has successively introduced advanced multi-functional cold heading equipment, thread machine,nut machine and large-size hot heading equipment and supporting detection equipment, such as magnetic detection machines,metallographic analyzer,salt spray tester,etc. We can manufacture various high quality fasteners which meet the GB, DIN, ANSI, JIS and ISO standard with a R&D department.Its products are widely used in petrochemical industry,boiler, wind power generation, guardrail panel of expressway, elevator industry ,machinery, building materials,auto parts and other fields.There are U type bolt, square U bolt, etc. Most of U bolts were pordued according to customers' detial sizes or drawing. We have hydraulic tensile tester to test the tensile strength of U bolt. If you are interest in U bolt, please tell detail dimensions or mark the sizes you need on our drwaing below, technical drawings are prefered.