M6-M20 Metric Fine Pitch Thread Flange Hex Nut A2 Stainless Steel Nuts Sprocket

Material: Stainless steel A2 (stainless steel 304) (SUS304). -Fine thread. -Drive: External hexagon. - Standard: DIN 6923 (ISO 4161) (GB/T 6177). Good Good quality.

eBay