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Since its inception, Ganggu has focused on the development and manufacturing of high-quality hardware fasteners and precision CNC machining services.

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M3 x 6mm Zinc-Plated Carbon Steel Pan Head Hollow Tubular Rivets with Cap for Leather — OEM/ODM
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.
Steel Fastener Round Head Solid Micro Rivets
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.
Custom Stainless Steel Precision Slotted Small Micro Screw for Watch
Micro screws, also known as miniature screws, are precision fasteners with a diameter ranging from 0.3mm to 5mm, designed for space-constrained and high-precision assembly scenarios. Our custom micro screws adopt advanced Swiss CNC machining technology, with tight tolerances of ±0.003mm, ensuring stable performance and perfect fit in various delicate equipment. We offer diverse customization options for materials, head types, thread pitches and surface treatments, covering industries such as electronics, medical devices, aerospace and watchmaking. As a professional custom micro screws manufacturer, we adhere to ISO 9001 and ISO 13485 standards, providing high-quality, reliable micro fasteners to global customers.
200PCS Carbon SteelHexagon Nylon Lock Nut M2 M3 M4 M5 M6 M8 M10 M12 Self Locking Nut DIN985
Made of high-quality carbon steel and stainless steel with precise thread structure, these lock nuts deliver excellent anti-vibration and anti-loosening performance to prevent loosening during equipment operation.
800PCS Cross Countersunk Head Flat Head Self Tapping Screw Combination Carbon Steel Phillips Mini Screw M2
Made of high-quality carbon steel and stainless steel, these screws feature neat sharp threads and firm locking performance with flat countersunk mounting surface.
500PCS Carbon Steel E-Clip External Retaining Ring E Type Snap Ring M1.5-M15 Circlip E Clip
Stamped from high-toughness black carbon steel, these E-clips feature stable elasticity, reliable hardness and outstanding anti-drop & anti-vibration positioning performance with strong deformation resistance.
500PCS Nylon Flat Washers Plastic Injection Molded M2-M10 Washer Insulated with Flat Top and Bottom
Made of high-insulation PA66 nylon material, these washers feature excellent insulation, shock absorption, anti-corrosion and heat insulation performance without scratching fastener contact surfaces.
500PCS Black Zinc Plated Cup Head Hex Socket Machine Screw Cylindrical Head Bolt Cup Head Screw M3 screw set
Manufactured with premium stainless steel and alloy steel, these screws own high hardness, precise full threads and outstanding anti-loosening performance.
Hex Socket Set Screw Kit 240 Pcs, Stainless Grub Screws M3-M10, Hexagonal Flat End Tightening Screw Case
This hex socket set screw assortment kit puts 240 stainless steel grub screws in 12 metric sizes — M3, M4, M5, M6, M8 and M10, two lengths each, 20 pieces per size — plus five L-shaped Allen wrenches (1.5/2/2.5/3/4 mm) in a compartment case. Headless and fully threaded, these cup point set screws with allen wrenches included drive flush into tapped holes, take high torque without cam-out, and bite the mating surface to resist vibration. Use them for shaft collars, gears, pulleys, door handles, towel bars, faucet handles, precision machinery, electronics and jigs. In stock; OEM packaging, box, label and in-box assortment customizable.
Drywall Screws Nylon Plastic Expansion Anchor Bolt M3.5 210 Pcs with Plastic Wall Anchors, 7 Sizes
This wall anchor kit packs 210 pieces into one clear 10-compartment case: 190 black phosphate drywall screws in seven lengths (M3.5 x 16, 20, 25, 30, 35, 40 and 50 mm) plus 20 ribbed plastic wall anchors, with a size chart on the lid. The carbon steel screws use a black phosphate finish for corrosion resistance and easier driving, and feature a Phillips countersunk bugle head that sits flush, coarse threads and a sharp self-piercing point. The ribbed anchors expand and resist rotation for a secure hold in drywall, plaster and masonry. Ideal for mirrors, shelves, picture frames, light fixtures, wood assembly and everyday repairs. In stock; OEM packaging, box, label and in-box assortment customizable.
4140 Hardened Alloy Steel Drive Shafts for Bicycles — OEM/ODM
Customized Alloy Steel Shafts are our core customized products, made of high-quality alloy steels such as 4140 and 40Cr.
Custom Made Metal Dental Knurled Dowel Pin Manufacturer
Knurled Dowel Pin is a high-precision positioning fastener with knurled patterns on the surface, mainly used for fixing, positioning and connecting mechanical components.
Contact: Angel
Contact number: +86 18602085825
WhatsApp: +86 18602085825
Address: Room 101, Building 2, No.11 jintang Road,changping Town, Dongguan City, Guangdong Province, CN
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