Knurled A2 Stainless Steel Thumb Screw M2 M2.5/M3-M8 Flat Head Thumbscrew Bolt. Size: M2 M2.5 M3 M4 M5 M6 M8. Material: A2 Stainless Steel. The product is made of A2 stainless steel, which has good corrosion resistance, oxidation resistance, heat resistance, high strength and high toughness.
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