DIN 7504K Hex washer head self drilling screw
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。
| Description | |
|---|---|
| Material | Steel hardened 240 - 425 HV 0.3 core hardness |
| Type | Self drilling screw DIN 7504 K |
| Driving recess type | Indention |
| Head Type | Hexagon washer head |
| Thread Type | Self tapping thread |
| Surface color | Zinc plated bluish |
| Thread size / diameter | ∅ 2.9 - 6.3 |
| Length | 3/4 |
| Type of end | #1 drill point |
| Field of application | Aluminium windows / doors, metal roofing, metal sheet |
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相關產品
鍍紅銅 焊接螺栓
頭部錐形焊點
平頭焊接螺絲
頭頂有焊點
微小螺絲 M2
Screw refer to ISO 14581
特殊 Rivet
With small collar around body shank
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.