... .8,8.8,10.9,B7 3.material: carbon steel 4.length:100-3000mm 5.square threaded rod 1.standard:DIN975, DIN976, BSW ... ,5.8,6.8,8.8,10.9,12.9,B7 etc.5.material: low carbon steel,medium carbon steel,high ... general, of course according to your requirement.8.square threaded rodTechnical data:Drawing of the threaded rod:Feature:Packing:Other Standard Products: square ...