Pan Head Chicago Screws

Cold heading process is one of the new processes for pressure machining of less or no cutting
metal. It is a processing method that utilizes the plastic deformation of metal under the action of
external forces, and with the aid of molds, redistributes and transfers the volume of metal to form
the required parts or blanks. The cold heading process is most suitable for producing standard
fasteners such as bolts, screws, nuts, rivets, and pins.etc

Pan Head Chicago Screws (also known as sex bolts, binding posts, or 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.

Key Features:

• 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.

• Internal Threading – 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:

• Stainless Steel (rust-resistant, durable)

• Brass (corrosion-resistant, decorative)

• Aluminum (lightweight, non-magnetic)

• Nylon/Plastic (non-conductive, lightweight)

Applications:

• 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.