支架与垫片 M4 x 6.35mm CIRCULAR CLEAR
圆形垫片 无螺纹 - 黄铜 0.250"（6.35mm）1/4" -
得捷: ROUND SPACER BRASS 1/4"
贸泽: 支架与垫片 M4 x 6.35mm CIRCULAR CLEAR
安富利: M4 Clearance Circular Brass Spacer, Ø6.35mm O/D, 6.35mm 0.25" body length, Nickel finish
Harwin