Countersunk Flat Head Socket Caps Screw Allen Key Bolts Screws DIN7991 Features: Material: A4 （316） Stainless Steel Thread Diameter: M3 M4 M5 M6 Pitch: 0.5mm（M3）/0.7mm（M4）/0.8mm（M5）/1mm（M6） Thread Length :4mm-100mm Types: Metric Metal Material]- Made of 316 stainless steel material, durable and not easy to rust or corrosion. it has good oxidation resistance that can be used for a long time without deformation. Function- The machine screws have good mechanical properties, with precision thread and smooth surface, ensuring that the screws can be tightened to better protect your equipment and extend the service life can be used in a humid environment and outdoors.
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