McMaster-Carr 91772A194 沉头螺栓 10/32 NE * 3/4
McMaster-Carr 92196A214 4#×5/32" 18-8 不锈钢内六角圆柱头螺钉
McMaster-Carr 91111A121 十字槽盘头螺钉 1/4-20 * 3/4