吊環螺絲
Motor lifting ring/hanging cap
AN螺帽
AN cap/sun washer
U型螺絲
U-shaped screw
拉釘(Rivet)
Pull stud (aluminum)
膨脹螺絲
Expansion screw
套管
Casing
接骨螺絲
Bone screw
名牌釘
Nameplate nail
L型基礎螺絲
Foundation screw
螺紋護套
Thread bushing