Stainless Steel Cone Nut Knurled Implosion Expansion Anti Slip Round Screw

描述

1. Performance & Material Properties
   • Premium 304 Stainless Steel Construction – Machined from AISI 304 austenitic stainless for a tensile strength ≈515 MPa, yield strength ≈215 MPa and >40 % elongation. The dense chromium-oxide passive film ensures outstanding corrosion resistance in indoor, outdoor, marine and mildly aggressive chemical environments.
   • Cone-Shaped Expansion Mechanism – Internal conical chamber grips the mating screw or bolt as it’s tightened, forcing the knurled outer sleeve to “implode” inward and lock against the host material. This radial expansion creates high pull-out resistance (up to 1.2 kN in 5 mm panels) without backside access.
   • Knurled Anti-Slip Cap – Deep, uniform diamond knurling on the rounded cap delivers secure finger grip and imparts up to 1.5 Nm of hand-torque for tool-free preliminary tightening. The smooth cap face protects wires or soft surfaces from damage.
   • Vibration-Resistant Locking – The combination of radial expansion and residual thread-friction prevents back-off under vibration or cyclic loads, delivering reliable lock-nut performance in dynamic applications.
2. Detailed Application Range
   • Thin-Wall Panels & Enclosures – Ideal for securing access panels, control boxes and instrument housings in sheet-metal, hardboard, plastic and composite panels (thickness 2–12 mm) where backside support is unavailable.
   • Furniture & Decorative Fixtures – Used in flat-pack furniture, display cabinets, signage frames and lighting fixtures—providing a flush, threaded anchor that conceals unsightly hardware and simplifies assembly.
   • Electronics & Telecommunications – Fastens PCB standoffs, cable clamps and faceplates in telecom racks, server cabinets and laboratory equipment—ensuring EMI/RFI shielding continuity and tool-free serviceability.
   • Automotive & Transportation Interiors – Anchors trim panels, grab handles and instrument clusters in cars, buses, RVs and marine vessels without welding or welded nuts, reducing weight and corrosion points.
3. Effortless Operation & Convenience
   • True Blind-Side Installation – Simply drill the correct hole, insert the nut from the front, and tighten the mating screw until the cap flares inward; no special fixtures or back-side access needed.
   • Quick, Reusable Assembly – Knurled cap allows hand-turning to start installation; once set, the nut accepts and releases screws repeatedly without thread wear. Disassembly is equally simple—unscrew to collapse the sleeve and remove the nut.
   • Compatible with Standard Tools – While hand-torque suffices for light fastening, a Phillips or hex driver can be used to reach full clamp load (up to 4 Nm) in thicker or harder substrates.
   • Convenient Kit Packaging – Available in assortments of M4, M5, M6 sizes (50–200 pcs) in labeled, compartmentalized cases—perfect for field technicians, cabinet makers and maintenance crews.
4. Superior Quality & Long-Term Reliability
   • International Standards & Certification – Produced in ISO 9001–certified facilities to meet DIN 7979, ASTM F468 and ANSI/ASME B18.2.2 tolerances, guaranteeing consistent dimensions (±0.05 mm) and mechanical performance.
   • Rigorous Testing & Traceability – Each lot is batch-tested for pull-out strength, torque-to-turn, and ≥720 h neutral salt-spray (ASTM B117). Full heat-number traceability from melt to finished part with material certification.
   • Environmental & Safety Compliance – RoHS- and REACH-compliant; free from hexavalent chromium and other restricted substances, supporting both worker safety and sustainable practices.
   • Maintenance-Free Service Life – The synergy of high-purity stainless steel, precision cone geometry and knurled cap architecture ensures decades of reliable, vibration-resistant, rust-free performance—even in harsh marine or industrial settings.