Products Description
Compared to traditional one-piece rivets and ordinary bolts, the Ledger Screw offers three significant advantages. First, its reusability is outstanding; the matching male-female split structure allows for repeated disassembly and reassembly without damaging the substrate, significantly reducing material waste during later equipment maintenance and ledger disassembly/reassembly. Second, the pressure-bearing design of the large flange head is suitable for riveting and locking thin and porous plates, preventing plate crushing and deformation.
Thanks to integrated factory processing, products in the same batch have uniform thread tolerances and excellent interchangeability. During mass assembly, no secondary manual selection of parts is required, effectively improving the assembly efficiency of customer production lines. Electrical cabinet assembly customers have frequently verified this assembly adaptability advantage in the mass production of the Flat Head Chicago Screw.
Core Product Features
Split-type locking structure
The male screw is screwed into the internal thread of the female sleeve to tighten it. The Chicago Screw's threads utilize national standard precision thread rolling technology, ensuring anti-loosening performance meets industrial fastener standards after tightening.
Flange disc pressure-bearing head
The Chicago Bolt uses an enlarged disc base to increase the force-bearing area, distributing tightening pressure and adapting to various substrates such as thin metal sheets, plastic sheets, thick paper ledgers, and insulating materials.
Multi-material corrosion resistance
Carbon steel with blackening/galvanizing for rust prevention, stainless steel with native rust prevention, and brass with a built-in anti-oxidation coating. The Round Head Chicago Bolt can be adapted to three types of working conditions: indoor dry, outdoor humid, and electrical corrosion environments.
Material Advantages Analysis
| Stainless Steel | 304/316 stainless steel offers maintenance-free performance throughout its entire lifecycle, maintaining structural integrity in salt spray, acid and alkali, and high humidity environments. Suitable for demanding reliability applications such as the Electrical Panel Chicago Bolt. |
| Brass | Brass possesses natural antibacterial properties and excellent conductivity. Brass Chicago Screws are commonly used in medical panels, electrical grounding, and high-end decorative applications. Nickel plating increases surface hardness to over HV200. |
| Carbon Steel Plating Solution | The most cost-effective mass production solution. A nickel plating thickness of 8–12μm for post and screw fasteners is sufficient to meet the corrosion protection requirements of general industrial environments. |
FAQ
Does your Chicago Screw support customization?
Yes, we support OEM/ODM services and can adjust parameters such as size, material, and surface treatment according to customer needs.
Are your products environmentally certified?
Yes, our Chicago Binding Screw products are RoHS and REACH certified, free of hazardous substances, and comply with global environmental requirements.
Can a Electrical Panel Chicago Bolt be used for plastic housings?
Yes. It is recommended to use a Chicago Screw Rivet structure with oversized washers or insert nuts to prevent cracking the plastic.
contact us
If you are currently selecting Ledger Screw series fasteners suitable for your equipment assembly or binding projects, please feel free to submit your product drawings and specification sheet to request a quote. Our engineering and sales teams will provide a suitable selection solution and an accurate factory quote as soon as possible.
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