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Dongguan Situo Hardware Products Technology Co., Ltd
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Stainless Steel Ball Head Solid Rivets Cold Drawn Precision Door Window Hardware Rivets

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Stainless Steel Ball Head Solid Rivets Cold Drawn Precision Door Window Hardware Rivets

Precision : Min0.001

Category : rivet

Material : SUS304 / DIN 2462

Assembly method : pressing rivet

Surface treatment : Passivation

Sample period : 10 to 15 days

Processing technology : Cold heading

Brand Name : SITUO

Model Number : ST-20009

Certification : ISO9001 & TS16949

Place of Origin : GuangDong Dongguan

MOQ : 1PCS

Price : 5-10 USD per item

Payment Terms : T/T

Supply Ability : 10000PCS per day

Delivery Time : Communication

Packaging Details : Communication

Bolt tightening degree : Communication

head shape : ball

Color : Bright nickel color

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Stainless Steel Ball Head Solid Rivets Cold Drawn Precision Door Window Hardware Rivets
Stainless steel ball-head rivets, solid rivets, cold-drawn precision door and window hardware
Application and Key Considerations of Stainless Steel Rivets in Door & Window Hardware
Stainless steel rivets are core fasteners for permanent, anti-vibration and corrosion-resistant connections in door and window hardware. They are widely used in the assembly of key components such as hinges, friction stays, handles, lock points and reinforcing plates, and are particularly suitable for connecting aluminum alloy, stainless steel profiles and thin steel plates.
Their core advantages lie in single-side installation, high shear resistance and excellent weatherability. However, strict control must be applied to material matching, specification selection, hole precision and installation process to avoid electrochemical corrosion, loose connections, seal failure and other problems.
Core Application Scenarios and Selection
Application Parts and Rivet Matching
Application Part Load Characteristics Recommended Rivet Type Material Selection Key Requirements
Hinges / Friction stays (load-bearing) High shear, fatigue resistance, frequent vibration Structural stainless steel blind rivets (e.g. hem-lock, dome-type) 304 (general) / 316 (coastal / high humidity) Prefer A4-70 / A4-80; ensure shear strength ≥ 6.8 kN
Handles / Lock points (light load) Low load, flat surface required Countersunk sealed blind rivets 304 Countersink must match rivet head taper for flat surface
Reinforcing plates / Corner codes High clamping force, waterproof required Sealed stainless steel blind rivets 304 / 316 Sealing ring closes after mandrel break to prevent moisture ingress
Decorative panels / Screens Low load, anti-pull-through required Large-flange stainless steel blind rivets 304 Flange diameter ≥ 2× shank diameter to increase contact area
Heavy-duty door hardware Ultra-high shear, double-side forming Solid stainless steel rivets 316 (A4-80) Double-side installation required; use hydraulic riveting tool for quality forming
Key Material Selection
  • 304 (A2): Suitable for urban indoor and outdoor environments and general humid conditions; cost-effective, the standard choice for door and window hardware.
  • 316 (A4): Contains molybdenum, with excellent resistance to chloride corrosion; mandatory for coastal areas, chemical zones, swimming pools and other high-salt environments.
  • 201 / 202 stainless iron is strictly prohibited: Low chromium and nickel content, poor corrosion resistance, easy to rust and cause connection failure.
Key Installation and Design Considerations
Specification and Hole Precision (Basis of Connection Strength)
  • Diameter selection: Commonly φ3.2, φ4.0, φ4.8 mm for door and window hardware; upgrade to φ6.4 mm for heavy-duty hinges.
  • Length calculation: Blind rivet length ≈ total thickness of connected parts + 1.5 × rivet diameter, to ensure complete forming and sufficient clamping force.
  • Hole tolerance: Hole diameter = rivet diameter ± 0.1 mm (e.g. φ4.0 rivet matches φ4.0-4.1 mm hole). Oversized holes lead to insufficient expansion; undersized holes increase installation difficulty.
  • Edge distance and pitch: Edge distance ≥ 2 × rivet diameter (prevent plate tearing); pitch ≥ 3 × rivet diameter (avoid stress concentration).
  • Hole quality: Deburr and chamfer after drilling; hole axis must be perpendicular to the plate surface, otherwise rivet tilting and seal failure will occur.
Material Compatibility (Key to Anti-electrochemical Corrosion)
When aluminum alloy profiles (anode) are in direct contact with stainless steel rivets (cathode), a galvanic cell reaction will occur under moisture. Isolation measures:
  • Insulation isolation: Install nylon washers, rubber gaskets or wrap insulating tape between dissimilar metals.
  • Coating protection: Passivation or plastic spraying on rivets or profile contact surfaces to break the corrosion circuit.
  • Sealing protection: Seal rivet joints with neutral silicone sealant to prevent moisture penetration.
  • Core principle: Rivet body and mandrel must be the same material (e.g. 316 body with 316 mandrel) to avoid internal electrochemical corrosion.
Installation Process and Tools (Guarantee for Forming Quality)
  • Tool matching: Pneumatic rivet tools for mass production (air pressure 0.6-0.8 MPa), manual tools for on-site maintenance, hydraulic tools for heavy-duty solid rivets.
  • Riveting force control: Stainless steel has high hardness. Excessive force causes head cracking or plate deformation; insufficient force leads to loose connections.
  • Sealed rivet installation: Ensure the sealing ring fits tightly without gaps after mandrel break, otherwise waterproof function will be lost.
  • Quality inspection: Visually check that the rivet head is fitted, the bulge is symmetrical, and the mandrel breaks at the specified position; sample shear strength testing for mass production.
Environmental Adaptation and Maintenance
  • Storage: Store rivets in a dry, ventilated area, separately from carbon steel fasteners, to avoid moisture or corrosive media.
  • Regular inspection: Check for rust, looseness or deformation after 1-2 years of use; replace if problems are found.
  • Special environment protection: Apply special stainless steel anti-corrosion oil or coating in high acid-base environments.
Customization Suggestions for Non-standard Fasteners
For non-standard requirements in door and window hardware (special dimensions, special-shaped heads, high strength), note the following:
  • Process selection: Cold heading for thin-walled, complex-shaped rivets (high precision, high efficiency); machining for thick-walled, heavy-duty rivets (better strength).
  • Strength grade: Rivets for key load-bearing parts (e.g. hinges) must reach A4-80 to ensure shear and tensile strength for long-term use.
  • Surface treatment: Passivation for general use (improved corrosion resistance); plastic spraying or electroplating for decorative parts to match appearance.
  • Standard compliance: Follow GB/T 12618 (blind rivets), GB/T 863 (solid rivets) and other national standards to ensure compatibility with hardware components.
We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.
Our maximum processing outer diameter is 60, and the minimum control tolerance is 0.001. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, which can effectively provide customers with the best technical solutions.
Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.
Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.
Our customers include bo-sch, Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.
Our Capacity
Main product names: Stainless steel screws, carbon steel screws, pins, rivets, nuts, eccentric nails, embedded parts, and other fasteners.
Business Type: Factory / Manufacturer
Service: CNC Machining, Turning and Milling, CNC Turning, Cold heading, stamping, Assembly Service
Material: Aluminum, Stainless steel, Steel, Alloy steel, Titanium, Brass, Copper, bronze, Magnesium alloy, Delrin, POM, Acrylic, PC, etc.
Finish: Sandblasting, Anodize color, Blackenning, Zinc/Nickl Plating, Polish, Power coating, Passivation PVD, Titanium Plating, Electrogalvanizing, electroplating chromium, electrophoresis, QPQ, Electro Polishing, Chrome Plating, Knurl, Laser etch Logo, etc.
Drawing format: STEP, STP, GIS, CAD, PDF, DWG, DXF etc or samples.
Tolerance: +/-0.01mm ~ +/-0.05mm
Surface roughness: Ra 0.1~3.2
Inspection: Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier, CMM, Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge
Product Images
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