M4 16mm 15pcs. M4 20mm 15pcs. M4 25mm 15pcs. M4 30mm 15pcs. M4 35mm 15pcs. M4 40mm 15pcs. M4 50mm 15pcs. [Corrosion Resistance] The A2 Stainless Steel material ensures these screws resist rust and corrosion, suitable for both indoor and outdoor use.
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