| Item | Details |
|---|
| Full Official Product Name | High Quality Custom Integral Cold Bent U-Shaped Bolt, Passivation Finished Stainless Steel Fastener, Wide Size Range M3-M64, Optional Full / Half Metric Thread Pipe Clamp Hardware With Outstanding Anti-Corrosion Performance for Marine, Solar PV, Chemical, Municipal & Heavy Industrial Pipeline Projects |
| Stainless Steel Material & Performance Grades | Multiple premium stainless steel grades optional for different working conditions: A2(SS304), A4(SS316), A4-70 high tensile strength grade. Raw steel rods strictly screened with chemical composition and tensile hardness testing before cold bending. A2 grade fits general outdoor scenarios; A4/A4-70 with molybdenum element provides superior salt fog, acid and alkali resistance for coastal, offshore |
| Global Applicable Manufacturing Standards | Produced complying with DIN standard, fully compatible with GB, ANSI, BSW, JIS, GOST international unified metric fastener specifications. U arc radian, thread pitch, thread length and dimensional deviation all follow ISO 2768 mechanical tolerance standards, realizing cross-border interchangeable installation for global engineering and wholesale buyers. |
| Ultra-Wide Custom Size Range & Two Thread Types | Complete customizable metric sizes covering M3, M4, M6, M8, M10, M12, M16, M20, M24, M30 up to large size M64. Two thread styles for selection: full metric thread or half metric thread. Customization supports tailor-made round U / square U profiles, inner U width, total thread length and rod thickness. Customer technical drawings, sample-based customization and non-standard special sizes are fully |
| Passivation Surface Treatment & Anti-Corrosion Advantages | Adopts professional pickling and passivation surface finish without electroplating. The passivation layer forms a dense protective film on stainless steel surface, greatly improving oxidation resistance, salt spray resistance and service life. Smooth matte silver surface without burrs on curved arcs and threaded ends. Optional black EPDM anti-vibration rubber sleeve can be wrapped on U bending sec |
| Integrated Cold Bending Production Craft | Adopts one-piece high-temperature integral cold bending forming process without welding seams, eliminating structural weak points and lifting overall tensile breaking load limit. Two ends processed by precision thread rolling equipment to form uniform smooth metric threads, perfectly matched with supporting stainless steel hex nuts and flat washers to achieve reliable anti-loosening effect under c |
| Dimensional Tolerance Execution Standard | All finished customized passivation stainless steel U bolts are manufactured under ISO 2768 general mechanical dimensional tolerance rules. Comprehensive pre-delivery full inspection covers U arc roundness/squareness, thread length consistency, overall dimension and thread matching tightness, effectively eliminating dimensional deviation generated during mass continuous production. |
| Dual Round & Square U Structural Design Features | Two mainstream bent profiles for matching different pipes: round U shape for circular tubes, square U shape for square/rectangular metal profiles. No inner drive recess, smooth non-knurl surface without extra knurling processing. Symmetrical dual threaded ends evenly distribute clamping pressure to firmly lock pipes and profiles, preventing bolt loosening caused by vehicle bumps, outdoor wind load |
| Wide Multi-Scenario Application Coverage | 1. Ground & rooftop solar photovoltaic support frame circular/rectangular pipeline fixing; 2. Marine ship fluid pipelines, cable conduits and offshore platform fixture clamping; 3. Chemical factory corrosive medium pipeline fastening; 4. Metal fence, agricultural machinery and heavy truck chassis pipeline bracket mounting; 5. Construction steel frame, municipal engineering and heavy industrial lar |
| Comprehensive OEM & ODM Customization Service System | Full customized service solution with adjustable parameters: stainless steel grade (A2/SS304, A4/SS316, A4-70), round/square U shape, full/half thread length, M3-M64 arbitrary size, EPDM rubber sleeve thickness, laser engraved private brand logo HYS and personalized export carton printing. Small trial sample orders and full-container bulk mass orders are both flexibly supported. |
| Environmental Adaptability Highlights | The special passivation treatment maximizes the natural anti-rust performance of stainless steel, far superior to ordinary polishing surface. Wide M3-M64 size range covers miniature light-duty installation to heavy large industrial pipeline fixing demands. Selectable half-thread design avoids direct friction between threads and pipes to reduce wear and extend product service cycle significantly. |
| Export Standard Anti-Abrasion Packaging Scheme | Each single U bolt or complete bolt assembly set is individually packed with transparent scratch-proof polybag to avoid surface abrasion and dust contamination during cross-border transit; outer packaging adopts thickened compression-resistant reinforced export corrugated cartons. Wooden pallet stacking service is available for large-volume bulk orders to prevent product extrusion deformation duri |
| Factory Origin & Complete Export Customs Document Support | Direct factory supply manufactured in China without intermediate distributors, brand logo HYS can be laser marked on bolt surface as customer required. A full set of customs clearance documents can be provided, including commercial invoice, packing list, raw material test report and factory finished product inspection certificate for smooth worldwide customs clearance. |
| Rigorous 100% Pre-Shipment Quality Inspection Flow | Every batch of finished goods undergoes full inspection before delivery, including dimensional measurement test covering M3-M64 full size range, thread matching tightness test, passivation protective layer integrity check and rubber wrapping tightness test. All defective unqualified finished products will be strictly reworked or eliminated to maintain stable consistent high batch quality for overs |
| Applicable HS Customs Code | 7318160000 - Custom passivation stainless steel round & square U-shaped pipe clamp bolts, metric size M3-M64 with full/half thread, high anti-corrosion fixing hardware for marine, solar, chemical and heavy industrial pipeline engineering projects. |
