钢、不锈钢、黄铜、铝、硅青铜、镍铜合金螺钉的材料、尺寸、公差和命名标准。合适的饰面。开槽和凹头类型的沉头螺钉、圆头螺钉和凸形沉头螺钉的首选和补充尺寸。增加了凹口穿透测量。交叉引用:BS 18BS 350BS 729:第2BS 1224BS 1448BS 1473BS 1554BS 1615BS 1706BS 1872BS 2873BS 3075BS 3189部分

Materials, dimensions, tolerances, designation criteria for screws of steel, stainless steel, brass, aluminium, silicon bronze, nickel copper alloy. Suitable finishes. Preferred and supplementary sizes for countersunk head, round head and raised countersunk head screws, for both slotted and recessed head types. Recess penetration gauging appended.Cross References:BS 18BS 350BS 729:Part 2BS 1224BS 1448BS 1473BS 1554BS 1615BS 1706BS 1872BS 2873BS 3075BS 3189