带帽螺栓 [机] nut bolt ; With cap bolt ; Cap bolt ; hood bolts

精制六角带帽螺栓 Refined hexagon nut bolt ; Refined hex cap bolt

螺钉、带帽螺栓 Nut bolt

镀锌精制带帽螺栓 Galvanized refined hood bolts

平垫带帽螺栓 SCREW,CAPTIVE WASHER CAP