rivet 1,good quality :without crack during the riveting 2, qickly delivery 3, good surface rivet:The rivet popular used for the clutch facing , clutch disc.It's made to the GB standard, DIN 7338 standard, DIN6792-93 standard, BS3537 standard, if you have a special part we can customize to your drawing.Good and steady material choose, annealing treatmeat after the coldheading to guarantee the ...