1/2/5pcs M2 M2.5 M3 M4 M5 M6 M8 M10 304 Stainless Steel Knurl Flat Head Hand Tighten Curtain Wall Glass Thumb Screw Bolt DIN653

1/2/5pcs M2 M2.5 M3 M4 M5 M6 M8 M10 304 Stainless Steel Knurl Flat Head Hand Tighten Curtain Wall Glass Thumb Screw Bolt DIN653

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