Product Name: Machine Screws Bolts; Material: 304 Stainless Steel; Finish: Polishing; Screw Groove Type: Phillips; Color: Silver Tone. Model: 4#-40x3/8"; Total Length: 3/8"; Number of Teeth(Each Inch):40; Screw Head Dia: 5mm / 0.2". Material: These flat head screws are made of 304 stainless steel, corrosion-resistant, wear-resistant, not easy to rust.. Advantage: Our flat head machine screws are good for both indoor or outdoor, dry or wet environments use.. Application: Suitable for household, office equipment industry, the electronics industry, the communications industry, machinery, etc..
