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b) DIN 7984 螺絲具有較薄的頭部,因其設計使它們與材料表面齊平。然而,這種設計可能無法提供與 DIN 912 螺絲較厚頭部相同的扭矩傳遞能力,後者由於其較厚的圓柱形頭部形狀而設計用於處理更高的扭矩。
大扁平頭 機械牙螺絲
Extremely low head
小螺絲 M2.5
十字或米字孔亦可接單生產
六角薄頭螺絲 圓柱末端
Thin hexagon head
鍍紅銅焊接螺絲
a) A weld screw is a fastener specifically designed for welding onto metal surfaces, particularly steel. It is coated with a thin layer of copper, which enhances conductivity and improves weld quality by ensuring a strong and consistent bond.