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There are 25/50/100pcs high quality 304 stainless steel / 10.9 class steel flat countersunk head hex socket screw Screw Description: Material:304 stainless steel / 10.9 class steel Size: D(thread diameter) x L(total length) Metric thread diameter: M2(2mm) / M3 (3mm) Metric thread pitch:0.4mm(M2) / 0.5mm(M3) Thread length: 3mm,4mm,5mm,6mm,8mm,10mm,12mm,16mm,20mm,25mm,30mm,35mm,40mm Nut Description: Material:304 stainless steel / 10.9 class steel Metric thread diameter: M3 (3mm) / M2 (2mm) Metric thread pitch: 0.5mm(M3) / 0.4mm(M2)
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