High Precision Dowel Pins Stainless Steel Cylindrical Guide Shaft Pin 3.5mm 7mm Dowel Pin for Locating and Mechanical Assembly

Knurled Dowel Pin is a high-precision positioning fastener with knurled patterns on the surface, mainly used for fixing, positioning and connecting mechanical components.

Customized Alloy Steel Shafts are our core customized products, made of high-quality alloy steels such as 4140 and 40Cr.

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.

Hollow rivets are versatile tubular fastening connectors, customizable in carbon steel, steel, aluminum alloy, stainless steel and brass. Complete standard sizes and non-standard specifications are available as required. Made by precise cold heading forming, these rivets feature smooth surface, uniform wall thickness, easy riveting, simple installation, light weight and good fitting performance. With excellent toughness and stable structure, they stay firmly fastened without loosening, owning great wear resistance and corrosion resistance. They are ideal for connecting thin plates, soft materials and small spare parts, widely used in electronics, leather goods, toys, furniture hardware, nameplate fixing and other fields. We support personalized customization to meet different demands on hardness, anti-rust ability, bearing capacity and appearance, serving as cost-effective hollow tubular fasteners for various industrial assembly.