Birta aan lahayn (countersunk / flat head) nuts rivet;Madaxa Countersunk / madaxa fidsan cidi jiid;Hexagon nuts/bolt) - waa maxay lambarka caadiga ah ee qaranka?

Countersunk madaxa godka hexagon: GB70.3 DIN7991

Ciddi jiid madax wareeg ah oo furan: GB12618

lowska hexagon: GB6170 DIN934

Hexagon dibadda ah oo buuxa xadhig xadhig ah: GB5783 DIN933

Rivet nuts: GB17880.1