... Standard:GB/T1527-199,DIN7340 Copper Bushing/sleeve/metal pin bushingFeatures:1) name:rivets, tubular rivets, brass rivets, brass pins ... :brass, copper ,steel, aluminum 3) size: O.D 1.0mm- 20mm4) Technical Standard: DIN7340 Tubular rivet made from tube ... standard and are widely used in precise instrument, electronicequipment, pin connector, pen, mechanical device etc.Especially our Brass Tubular Rivets ...