材质：采用UL认可之尼龙PA66料制成，防火等级94V-2，耐酸、耐碱、耐油，上为圆罩形，固定齿钩3.2mm厚度以下机板均可适用，绝缘性良好，耐久性不易老化。使用方法：将扣式塞头轻轻塞入机板孔，即可牢牢扣住机板。用途：作为预备孔或多余孔塞平之用，保持盘面的美观产品编号机板孔口径尺寸包装mmlnchABCH一般型SB-05087.85/16”7.79.45.27.8100只/包SB-06099.53/8”9.5126.910.1SB-0811117/16”10.913.78.310.3SB-081312.71/2”12.615.18.310.3SB-1216165/8”15.81812.310.4SB-1419193/4”1921.814.311.3SB-172222.27/8”21.925.118.611.2SB-192525.51”252819.311.2SB-243030.513/16”29.83424.311.6SB-293838.111/23841.129.311.4SB-354545.2245.546.135.411.6开口SB-1722C12.71/212.714.18.710.1100只/包SB-1216C165/8”15.917.712.310.1SB-1419C193/4”1920.314.210.3SB-1722C22.27/8”22.223.517.510.3)