M3 x 8mm 12mm 16mm 20mm 25mm Flat Head Hex Socket Cap Screws Countersunk Bolts, 10.9 Grade Alloy Steel, Black Oxide Finish, Metric Allen Hex Drive, Fully Threaded, Assortment Kit 125Pcs

Material: 100% 10.9 Grade alloy steel, and the surface is treated with black oxide. They have excellent corrosion resistance, firmness, wear resistance and low temperature resistance. | Thread Diameter: 3 mm; Pitch Size: 0.5 mm, Thread Length: 8 mm, 12 mm, 16 mm, 20 mm, 25 mm. | Head Diameter: 6 mm; Head Height: 2.5 mm; Drive Type: Allen Hex Socket 2 mm; Color: Black Oxide. | Package Included: M3 x 8 mm(25PCS), M3 x 12 mm(25PCS), M3 x 16 mm(25PCS), M3 x 20 mm(25PCS), M3 x 25 mm(25PCS). | Any time you need us, please contact us via email or Q&A. We will provide you with professional service and reply to you as soon as possible, you can rest assured to buy.