Standard Knurled Round Screws, Uniform Force Is Not Easy to Slip, Easy to Use. M5x17mm Slotted Screws. M4x8mm High Head Step Screws. High-quality Materials Anti-corrosion and Rust Resistance, Neat and Complete Threads, Even Force Without Stripping Teeth,Sturdy and Durable, Good Tightening, Long Service Life.
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