Stainless steel 316 rust-proof plum blossom belt intermediate belt pad K series plastic special self-tapping screws are a kind of fasteners specially designed for plastic (plastic) assembly. Its core features are reflected in the material, structure, rust resistance, and applicable scenarios. The following is a concise description of the surface treatment of stainless steel 316 rust-proof plum blossom belt intermediate belt pad K series plastic special self-tapping screws.
Surface treatment core points
Natural color passivation process: A dense oxide film is formed on the surface by nitric acid or citric acid. It can improve corrosion resistance, retain the original color of stainless steel, no coating is required and there is no risk of peeling.
Reasons for no electroplating or no painting: avoid the electroplating layer from destroying the natural corrosion resistance of 316 stainless steel to ensure long-term rust resistance.
PTFE gasket material: polytetrafluoroethylene (white), smooth and hydrophobic surface.
Features: temperature resistance -200℃~+240℃, low friction coefficient (0.05~0.1), to achieve sealing and anti-loosening.
Optional process
Wire drawing: increase aesthetics without affecting function.
Cleaning and degreasing: remove processing oil and ensure the integrity of the passivation film.
Why is it designed this way?
Priority for product anti-rust performance: the passivation film resists chloride ion corrosion and is suitable for marine and chemical environments.
Compatible with plastics: no coating to avoid chemical reactions with plastics.
Weatherproof guarantee: PTFE gaskets are resistant to aging and adapt to outdoor temperature/humidity changes.
