M3/M4 304 stainless steel one-word nail male nail nickel-plated mother and child screw male and female nail letter rivet for Leather & Craft Assembly

Our M3/M4 304 Stainless Steel Slotted Male Female Screws (also known as Chicago Screws or 子母 rivets) are professional fastening solutions engineered for durability, versatility, and aesthetic appeal. Crafted with premium 304 stainless steel and finished with a nickel plating, these male-female screws combine corrosion resistance, strength, and a sleek appearance—ideal for professionals, crafters, and DIY enthusiasts working on leather goods, accessories, and precision assembly projects.

 

Made from high-grade 304 stainless steel, these male female screws offer exceptional rust resistance and structural strength, ensuring long-term performance in both indoor and moderate outdoor environments. The nickel plating enhances their corrosion resistance further while adding a smooth, uniform, professional finish that complements leather, fabric, wood, and metal materials, making them perfect for visible fastening applications.

 

Featuring a slotted (one-word) head design, these Chicago screws are easy to install and remove with a standard flathead screwdriver, allowing for quick assembly and disassembly—ideal for projects that require frequent adjustments or maintenance. The male-female (mother-child) design ensures a secure, tight fit, with the male screw threading seamlessly into the female rivet to create a sturdy, flush connection without protrusions.

 

Available in M3 and M4 sizes, these precision fasteners are versatile and widely used for leather craft (such as wallets, belts, and bags), accessory assembly (like keychains and jewelry), DIY projects, and light-duty hardware installation. They are also suitable for decorative fastening in furniture, small boxes, and custom crafts, where both functionality and aesthetics are essential.

 

Each set undergoes strict quality control to ensure precise sizing, smooth threading, and consistent nickel plating. The combination of 304 stainless steel and nickel plating guarantees resistance to moisture, wear, and oxidation, while the slotted head and male-female design offer convenience and reliability for all your fastening needs.