SS304 18-8Thumb Screw Stainless Steel Rack Screw

description

1.Superior Mechanical Performance
– Thumb Screws (Carbon Steel): Made from quenched‐and‐tempered carbon steel, these knurled thumb screws exhibit tensile strengths ≥800 MPa and yield strengths ≥600 MPa, with a hot-dip or electro-galvanized finish (8–12 μm) for moderate corrosion resistance.
– Rack Screws (SUS304 Stainless Steel): Fabricated from 18/8 austenitic stainless steel, these M6 or 10-32 UNC rack screws deliver tensile strengths around 520 MPa and excellent toughness across –50 °C to +200 °C, with inherent resistance to rust, oxidation, and most chemicals.

2.Versatile Application Spectrum
– Thumb screws are ideal for tool-free fastening and repeated adjustments in server cabinets, telecom racks, AV enclosures, lab cabinets, and furniture panels.
– Stainless rack screws, with captive spring nuts, fit 19″ and 23″ rack rails, industrial control panels, network frames, and equipment racks, ensuring secure mounting and easy reconfiguration in data centers, broadcast studios, and factory floors.

3.Effortless, Tool-Free Operation
– Ergonomic, large-diameter knurled heads allow firm finger-tightening up to 4–6 Nm without tools, speeding assembly and maintenance.
– Rack screws feature captive spring nuts that snap into U-spaced rack rails and rotate freely to align before tightening, streamlining one-handed installation and rack re-arrangement.

4.Premium Quality & Traceability
– Manufactured in ISO 9001-certified plants, every batch undergoes dimensional inspection (±0.1 mm), hardness testing, and coating-thickness measurement.
– Stainless rack screws pass ≥240 h salt-spray per ASTM B117 post-passivation; carbon steel thumb screws exceed 72 h. Full material certificates and batch traceability ensure consistent performance in criti