This 195 pcs thumb screw assortment kit covers 12 popular metric sizes — M4 M5 M6 knurled thumb screws in 12, 16, 20 and 25 mm, 65 pieces per thread size — sorted in a clear 12-compartment case with size guide. Black knurled plastic knobs on white zinc-plated iron studs: a non-slip grip for comfortable hand tightening, plus clean metric threading that installs smoothly and holds firmly. Tighten, loosen and adjust by hand — a practical set of adjustable hand knob screws with storage case for furniture leveling feet, equipment and fixtures, camera and 3D-printer rigs, enclosures and DIY. In stock; OEM/ODM packaging, box, label and in-box assortment customizable. Check size and length before installation.

This cotter pin assortment kit keeps 175 stainless steel cotter pins on hand in five popular sizes — 1x16, 1.5x20, 2x25, 3x30 and 4x40 mm, 35 pieces each — in a clear 5-compartment case with size guide. 304 stainless steel: rust-proof for indoor and outdoor use, smooth and strong, with flexible prongs. Insert through a castle nut or holed shaft and bend the prongs apart to lock bolts, pins and axles securely. A practical cotter pin kit for automotive, trailers, farm equipment, machinery and DIY repair. In stock; OEM/ODM packaging, box, label and in-box assortment customizable.

This hose clamp assortment kit gives you 150 spring hose clamps in five popular sizes — 6, 7, 8, 9 and 10 mm, 30 pieces each — plus a clear compartment storage case. Carbon steel with yellow zinc plating, constant-tension double-wound design: squeeze the ears with pliers, slide over the hose and release for a 360° leak-resistant seal with no screw tightening. Ideal as a spring hose clamp kit for fuel lines, vacuum hoses, air and water lines on cars, motorcycles, small engines and DIY projects. Low-pressure use only. In stock; OEM/ODM packaging, box, label and in-box assortment customizable.

150 pcs stainless steel thread insert kit — a metric thread repair insert assortment M3 M4 M5 M6 M8 covering 10 specifications (1.5D & 3D) in a 10-compartment storage case. Diamond-shaped stainless wire with drive tang for controlled installation repairs stripped threads while keeping the original bolt size. This tanged wire thread insert set with storage case for stripped thread repair suits aluminum, magnesium, cast iron, automotive, machinery and DIY. Inserts only — STI tap and installation tools required. In stock; OEM/ODM label, box, packaging and in-box assortment customizable.

120 pcs screw eye assortment kit — featuring carbon steel screw eye hooks zinc plated and black finish in 6 assorted sizes (#14/#12/#10/#8/#6/#2, 120 pieces), organized in clear compartment cases. Sharp points start fast, deep threads grip wood firmly, smooth closed loops connect cleanly. This screw eye assortment box 6 sizes for picture frames and wood crafts also suits signs, chains & cords and other light-duty hanging. In stock; OEM/ODM packaging, box, label and in-box assortment customizable.

M6 torx wafer head (large flat head) self tapping screws in 3 practical lengths — M6×100mm (20 pcs), M6×120mm (20 pcs), M6×140mm (15 pcs) — a complete torx self tapping wood screw assortment with case, plus 1 matching torx driver bit. White zinc plated carbon steel: star drive prevents cam-out, wide washer head stops pull-through, coarse thread grips wood firmly, self-tapping point starts fast. Ideal for timber framing, fences, sheds, workbenches and DIY wood projects. Available from stock; OEM/ODM customization on packaging, box, label and in-box screw combination welcome.

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.

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.

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.

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.

Made of high-quality carbon steel and stainless steel, these screws feature neat sharp threads and firm locking performance with flat countersunk mounting surface.