盤頭芝加哥螺絲

冷镦加工是一种少切削或无切削的压力加工新工艺
金屬。它是一種利用金屬在下列因素作用下產生塑性變形的加工方法
外力作用下，在模具的幫助下，重新分配和轉移金屬的體積，以形成
所需的零件或坯料。冷镦工艺最适合生产标准的
螺栓、螺絲、螺帽、鉚釘和銷等緊固件

Pan Head 芝加哥螺絲 （也稱為 sex bolts, binding posts或 barrel nuts) are a type of two-part fastener consisting of a male screw (threaded bolt) and a female barrel nut (threaded sleeve). They are designed to securely join materials together without the need for a traditional nut on the backside.

主要功能：

• Pan Head Design – The screw has a slightly rounded, low-profile head with a flat bearing surface, providing a smooth finish while distributing pressure evenly.

• 內螺紋 – The barrel nut (female component) has internal threads that accept the male screw, creating a flush or semi-flush fastening.

• Secure Fastening – Unlike standard screws and nuts, Chicago screws remain tightly fastened, reducing loosening from vibration or movement.

• Non-Protruding Back – The barrel nut sits inside a pre-drilled hole, leaving a clean finish on both sides of the assembly.

Common Materials:

• 不銹鋼 (rust-resistant, durable)

• 黃銅 (corrosion-resistant, decorative)

• 鋁合金 (lightweight, non-magnetic)

• Nylon/Plastic (non-conductive, lightweight)

應用：

• Leathercraft (belts, holsters, bags, saddles)

• Furniture & Cabinetry (chairs, panels, modular systems)

• Bookbinding & Albums (swatch books, sample binders)

• Industrial & Machinery (panels, covers, fixtures)

• Signage & Displays (secure yet removable fastening)

Pan Head Chicago Screws are ideal for applications requiring a strong, flush-mount fastener with a professional appearance. They are widely used in industries where traditional nuts and bolts are impractical.