DIN 6921
與 (DIN 6922) 類似, 這些螺栓在頭部下方也有一個法蘭圈（盤形延伸部分), 可作為整合墊圈之用. 法蘭圈提供了更大的承載表面並有助於分佈負載, 使這些螺栓適合各種應用. 某些六角法蘭螺栓會在頭部下方帶鋸齒, 這進一步強化了它們在不同應用場合上的功能。
DIN 6921
- Carbon steel class 8.8 / 10.9 / 12.9
- Stainless steel A2 - 70
- Indented hexagon flange head
- Fully threaded
- Serrations under head
- Thread lcoking patch blue
相關產品
a) 此規範定義了 十字孔盤頭螺絲 (Cross recessed raised cheese head screws) 的規格. 這些螺絲具有凸起的圓柱形頭部, 一般常見孔型為 十字孔 type H (Phillips), 米字孔 Type Z (Pozi), 和 梅花孔 (Hexalobular socket / 6 lobe)
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) 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.
Square neck under head
a) A ribbed neck screw is a type of fastener designed with a special feature on its shank or neck. Instead of a smooth or threaded surface, the neck of the screw has ribbed, serrated, or knurled features. These ribs or serrations provide additional grip and resistance when the screw is driven into a material, preventing it from rotating or loosening.