M3 x 6mm Zinc-Plated Carbon Steel Pan Head Hollow Tubular Rivets with Cap for Leather — OEM/ODM

Semi-hollow rivets (also known as semi-tubular rivets) are lightweight fasteners with a solid head and hollow tail, balancing the strength of solid rivets and the easy installation of hollow rivets. Manufactured by cold heading, they are available in stainless steel, carbon steel, aluminum and copper, with sizes M1.2–M10 compliant with GB/T 873/874/875 standards. The hollow tail deforms easily during riveting for tight filling, ensuring secure fastening with low installation force. Ideal for thin sheets and soft materials in luggage, electronics, furniture and automotive interiors, they support custom head types, dimensions and finishes (zinc plating, anodizing) for diverse applications.

Solid rivets are one-piece metal rivets with a solid shank and preformed head, classified as high-strength structural rivets. Featuring permanent fastening, vibration resistance, and superior shear strength, they are widely used in heavy-duty applications such as aerospace, automotive, and steel structure projects. Made from premium materials like stainless steel, aluminum alloy, and copper, they undergo precise forging and surface treatment for excellent corrosion resistance, toughness, and stable connections. Available in round, countersunk, and pan head types, they comply with international standards including DIN, AN, and GB. Customization of diameter, length, and surface finish is supported to match varying workpiece thicknesses and load requirements. Installation requires double-sided access; the tail is deformed via rivet gun or press to form an equal-strength double-head joint, ensuring long-term structural safety and stability.

Our customized bicycle bottom bracket nut is designed for high-performance locking and durability. Featuring a serrated flange nut bicycle design, it effectively prevents loosening even under high-intensity vibration during cycling. This crankset locking screw is precision-machined from high-strength steel with professional surface treatments (black oxide or zinc plating) for superior rust resistance. Ideal for universal repairs of center axes and MTB cranksets, it ensures a secure fit and smooth power transfer for your bike.

As a top-tier precision machined parts supplier, we support 3-day prototyping and 7-day batch delivery. Our in-house lab ensures 100% strict quality control, backed by ISO 9001/14001. We provide technical DFM feedback and manufacturing scale for global supply chains.