Explore our flagship precision-engineered blind rivets, manufactured to strict international structural standards.
Understanding flush-head fastener dynamics, shear force redistribution, and surface aerodynamics in modern engineering.
Countersunk (CSK) blind rivets are explicitly designed with a 120-degree or 100-degree bevel head that seats seamlessly into a countersunk hole. This eliminates head projection, preventing mechanical snagging, reducing fluid/aerodynamic drag, and preserving smooth aesthetic contours across metal sheet assemblies.
By locking the mandrel head inside the deformed rivet body sleeve, countersunk blind rivets deliver robust joint integrity under multi-axial vibrational stress. Ideal for structural framing, automotive sub-assemblies, and heavy-duty industrial enclosures where dynamic load sharing is paramount.
Manufactured in high-grade 5052/5056 Aluminum alloys, A2/A4 Stainless Steels (304/316), and Zinc-Plated Carbon Steels. Precision metal selection prevents galvanic corrosion between dissimilar sheet materials while delivering up to 1,000+ hours of neutral salt spray resistance (NSS).
Information Gain Engineering Note: When installing countersunk blind rivets, the depth of the workpiece countersink must match the rivet head height within a tolerance of ±0.05mm. Under-countersinking leads to head projection, while over-countersinking reduces sheet bearing area, causing premature joint fatigue under cyclic loading.
| Rivet Body Material | Mandrel Material | Shear Strength (DIN 7337) | Tensile Strength | Corrosion Rating | Primary Industrial Use |
|---|---|---|---|---|---|
| Aluminium Alloy 5052 | Carbon Steel (Zinc Plated) | 1.1 kN - 2.8 kN | 1.5 kN - 3.4 kN | Moderate (120 hrs NSS) | HVAC, Electronic Cabinets, Signage |
| Aluminium Alloy 5056 | Aluminium Alloy 7075 | 1.4 kN - 3.2 kN | 1.8 kN - 4.1 kN | High (240 hrs NSS) | Aerospace Interior, Light Marine |
| Carbon Steel (C1008-C1010) | Carbon Steel (Hardened) | 2.2 kN - 5.5 kN | 2.9 kN - 6.8 kN | High (480 hrs NSS Zinc) | Automotive Chassis, Heavy Machinery |
| Stainless Steel 304 (A2) | Stainless Steel 304 | 3.5 kN - 7.2 kN | 4.2 kN - 8.5 kN | Superior (720 hrs NSS) | Outdoor Solar Mounts, Rail Transit |
| Stainless Steel 316 (A4) | Stainless Steel 316 | 3.8 kN - 7.8 kN | 4.5 kN - 9.1 kN | Extreme (1000+ hrs NSS) | Marine Engineering, Chemical Plants |
World-class OEM & ODM manufacturing facility specializing in standard and customized non-standard blind structural fasteners.
Our ISO9001-Compliant quality control eliminates defects, ensures consistent performance, and protects you from costly returns, so you can build trust with your customers effortlessly.
With the IATF16949-2016 quality management system for automotive fastener production, we provide more stable, certified, and guaranteed structural fastener products.
Powered by an experienced R&D engineers group, we deliver 10 annual innovations to solve market demands, address new industry challenges, and enhance your competitive edge.
We operate high-speed automated machinery ensuring micrometer-level dimensional accuracy across cold forming, assembly, and testing.
From standard open-end rivets to structural interlock fasteners and custom automotive expansion nuts.
Specifically manufactured for flush finish requirements in structural sheet metal work. Available in Steel, Stainless Steel, and Aluminum with exact 120° and 100° head profiles.
Featuring a unique split sleeve expansion that forms three broad anchor legs. Spreads load gently across soft, brittle, or low-density composite materials without crushing substrate.
Heavy-duty structural fasteners with positive mechanical mandrel retention. Provides waterproof sealing, high shear performance, and vibration resistance for extreme structural joint demands.
Features a 100% sealed cup-shaped rivet body preventing liquid or gas migration. Essential for outdoor electronic enclosures, tanks, and marine bulkhead mountings.
Designed to split into four flower-like petals during mandrel pull-through. Ideal for joining soft materials like plastics, wood, and insulation boards to metal frames.
Internal female threaded inserts (Countersunk, Knurled, Full Hex, M4.8 Automotive Expansion Nuts) providing load-bearing threads in thin-walled metal sheets.
Analyzed market demand shifting toward lightweight structural joining across EV manufacturing, HVAC engineering, and solar energy installation.
The global acceleration toward Electric Vehicles (EVs) requires joining multi-material body structures (such as aluminum alloy to ultra-high-strength steel). Countersunk blind rivets eliminate structural projection inside battery pack trays and interior floor pan assemblies, supporting lightweight aerodynamic goals without compromising crash test integrity.
Utility-scale solar arrays demand thousands of corrosion-resistant fasteners capable of enduring 25+ years of outdoor weathering. High-strength stainless steel 304/316 countersunk blind rivets provide flush fastening for glass-to-frame clamps and tracker rail brackets without interfering with solar panel glass margins.
Modern architectural building codes mandate low-friction airflow inside high-velocity HVAC ducts. Countersunk fasteners allow air distribution panels and dampening dampers to remain completely flush, preventing turbulence, acoustic noise generation, and particulate accumulation inside ventilation systems.
Real-world integration across diverse manufacturing verticals where blind surface access is restricted.
Used to fix panels, brackets, internal battery module dividers, and door hinges where space behind the sheet metal is inaccessible. Countersunk geometry ensures zero clearance obstruction against sliding battery trays or moving door hinges.
Securing overhead storage bins, cabin wall panels, and floor track covers. Flush countersunk riveting minimizes drag and snags while delivering high strength-to-weight performance under flight vibration.
Assembling server racks, outdoor telecom cabinets, and electrical transformer boxes. Seamless countersunk head styling prevents accidental catching during server blade insertion and maintenance operations.
Unmatched manufacturing velocity, raw material access, and automated cost optimization for global distributors.
Located in Wuxi’s industrial hardware hub, our facility integrates high-speed multi-station cold formers capable of producing over 500,000 countersunk units daily with micro-level tolerance consistency.
Direct supply agreements with Tier-1 Yangtze River Delta steel mills and aluminum smelters guarantee strict wire grade consistency (5052, 5056, 304, 316) while insulating buyers from sudden price volatility.
Seamless connectivity to Shanghai Port and Ningbo Port allows flexible FOB, CIF, or DDP delivery options. We serve over 200 B2B customers across 50+ countries with 99.8% on-time shipping reliability.
Pioneering the next era of industrial fastening technology with smart manufacturing, automated vision sorting, and advanced eco-platings.
Integration of high-speed 360° laser optical sorting systems across 100% of manufactured batches. Guarantees zero head deformation, exact countersink dimensions, and zero missing mandrels for automated robotic feed lines.
R&D development into next-generation 7000-series Aluminum-Zinc alloy blind rivets. Engineered to deliver steel-grade shear ratings at 33% of the weight for next-generation aerospace and hyper-efficient EV chassis.
Replacing traditional passivation methods with advanced Nickel-Zinc and trivalent chromium nano-coatings. Provides superior salt spray endurance (1200+ hours) while strictly aligning with European REACH and RoHS standards.
Ensuring your order meets regional engineering certifications and customized packaging demands seamlessly.
Strict compliance with European and International standardization for open-end break mandrel blind rivets.
Full Production Part Approval Process documentation, material heat-treat reports, and salt spray test certificates available for Tier-1 automotive clients.
Private labeling, custom color-coded small boxes, barcode scanning compatibility, and bulk industrial palletizing tailored to regional distribution networks.
Instant STEP/IGES model downloads and custom drawing evaluations by our senior application engineering team within 24 hours.
How WUXI AIPLLE guarantees total structural integrity from raw wire rod to finished export carton.
Inspection of raw wire stock (Polished Aluminium, Zinc-Plated Carbon Steel, 304/316 Stainless Steel) for wire diameter, tensile strength, and metallurgical purity.
Automated cold-heading process forms the precise countersunk bevel head (120° or 100°) and hollow sleeve body to micro tolerances.
High-speed assembly machines combine the formed rivet body sleeve with the engineered break-stem mandrel wire.
Rigorous self-inspection during production matching export standards: shear testing, tensile load testing, and head flushness verification.
Warehouse sorting, precise post-weighing, box & carton packing, and pallet wrapping for secure international shipment.
Product Development: Building on our proven track record of consistent product quality, we continuously expand our product portfolio to include custom non-standard parts, solid rivets, nickel-zinc plated automotive nuts, and expansion nuts.
Customer Development: We boast a global customer base of over 200 overseas clients across more than 50 countries. By consistently investing in both online and offline customer acquisition efforts, we have successfully established our presence on major e-commerce platforms such as Amazon and AliExpress—significantly broadening our product reach and user base.
Direct answers to common engineering, ordering, and structural compliance queries.
The angle determines the depth and contact area of the flush head. A 120° head is standard in general commercial sheet metal applications (DIN 7337), allowing flush installation in thinner sheets. A 100° head is more common in aerospace and military applications (NAS/MS standards), providing a deeper bearing surface for higher shear loads in thicker materials.
The total thickness of all materials to be joined must fall within the manufacturer's specified grip range of the chosen rivet. If the material thickness is less than the minimum grip, the rivet will not pull tight; if it exceeds maximum grip, the mandrel break point will project outward, preventing a smooth finish.
Standard countersunk rivets can pull through soft materials under tension. For plastics or soft composites, we recommend our Aluminum Tri-Fold (Lantern) Rivets or Peel-End Countersunk Rivets, which expand into three or four wide retaining legs behind the back wall, spreading the clamp force over a wider surface.
WUXI AIPLLE is certified under ISO9001 and IATF16949-2016 management systems. This guarantees total heat-lot traceability, zero-defect quality control protocols, and PPAP level documentation for automotive tier-1 suppliers.
Standard stock sizes in steel or aluminum have a low MOQ of 10,000 pieces per batch. Customized non-standard dimensions, special head angles, or custom color-painted finishes typically require an MOQ of 50,000 pieces depending on wire specifications.
We offer multiple surface treatments including clear zinc plating, yellow zinc passivation, nickel-zinc alloy coating, and 304/316 stainless steel options tested to withstand between 120 to 1,000+ hours of Neutral Salt Spray (NSS) corrosion testing without red rust.
Factory-direct wholesale pricing from leading China manufacturers & suppliers.
Thank you for your interest in AIPLLE! Contact our engineering team today to receive a instant wholesale quote and experience first-hand quality.
AIPLLE METAL