General description M4 Solid Screw Cup Finishing Washers made from T316 (A4) marine grade stainless steel, designed for durability and resistance to corrosion in marine environments. Technical specifications Material: T316 (A4) Marine Grade Stainless Steel Thickness (S): 2.5 mm Inner Diameter (d): 4.5 mm Outer Diameter (d1): 11 mm Compatibility and accessories Suitable for M4 metric thread Compatible with M3.9-M4.2 tapping screws Works with M4 wood screws
AmazonM4 Solid Screw Cup Finishing Washers T316 (A4) Marine Grade Stainless Steel Please Check All Dimensions Shown Below, Manufacturer: Generic
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