• Cross flat head self-tapping spike

• 十字扁头自攻尖尾螺丝

• Large flat head plum T20 with column self-tapping spike

• 大扁头梅花T20带柱自攻尖尾螺丝

• Hexagonal plum security screw

• 内六角梅花防盗螺丝

• Self-tapping sharp-end anti-theft screw

• 自攻尖尾防盗螺钉

• Triangle slot anti-theft mechanical screw

• 三角槽防盗机械螺丝