平頭焊接螺絲

a) DIN 965 制定了具有十字槽孔 (通常稱為 phillips) 的平頭螺絲標準。這些螺絲通常用於需要平坦表面的應用. 平頭型能使螺絲與材料表面齊平, 從而提供整潔的外觀。

b) 十字槽孔與米字槽孔因其易於使用相容螺絲起子安裝和拆卸而被廣泛使用。此外, 另一常見的六角瓣孔(梅花孔)設計亦可提供更好的扭矩傳遞並最大限度地減少螺絲旋入過程中脫出的風險。

a) DIN 966 係指十字孔半沉頭螺絲標準, 一般常見孔型為十字孔 (Phillips) 和米字孔 (Pozi), 這些設計便於使用相容的螺絲起子進行安裝和拆卸，可輕鬆安裝和拆卸。

b) 此螺絲頭型為半沉頭，但具有圓頂或微凸起頂部, 又稱半圓頭, 提供半齊平和裝飾性外觀。

吊環螺絲

a) A self-tapping screw for thermoplastics is a specialized fastener designed to create its own threads as it is driven into plastic materials.

b) These screws have wider, sharp, and deep threads, which allow them to cut into the softer thermoplastic material efficiently, creating a secure, long-lasting hold.

a) DIN 7500 specifies self-tapping screws for metal, also known as thread-forming screws. These screws are designed to form or cut threads in a pre-drilled hole in metal materials, without requiring a pre-cut thread.

b) The screw shank has a three-lobe shape instead of a round cross-section, which reduces friction during installation, and facilitates smooth material displacement and efficient thread formation.

c) The long dog point (the extended, unthreaded tip of the screw) acts as a pilot, helping to align the screw with the pre-drilled hole during installation, and faciliates smooth installation.

d) A standard trilobe thread forming screw without dog point is avaialble upon request.

a) 鑽尾螺絲是一種設計用於在旋入過程中自動鑽孔並切割螺紋的螺絲，無需預先鑽孔。它具有類似鑽頭的尖端，能夠輕鬆穿透工件。這種設計有助於加快安裝過程並提高效率。鑽尾的形狀和材質會影響螺絲的鑽孔能力，從而決定在不同材料中的表現。

b) 頭部下方的鋸齒狀設計會在螺絲頭部與材質之間產生額外的摩擦，幫助防止螺絲鬆動。鋸齒狀表面為螺絲起子等工具提供更好的抓握力，使得在安裝過程中可以施加更大的扭矩，從而提高螺絲的固定效果。