1.surface:ZP,BL,PL,HDG size:M3-M80 2.class:4.8,5.8,6.8, ... 5.threaded rod end 1.standard:DIN975, DIN976, BSW,UNC,ISO,GB are available2.surface:ZP,PL,BL,HDG etc.3.size:M3 ... in general, of course according to your requirement.8.threaded rod endTechnical data:Packing:Other Standard Products: threaded rod end