ManoMano
General description A4 grade stainless steel has a greater corrosion resistance than A2 in certain environments. It is often used for marine applications, especially when coming into direct contact with salt water. Technical specifications Dimensions: 1/2" x 13 TPI Across the flats: 21 mm Point to point: 19 mm Thickness: 10 mm
AmazonUNC Hexagon full nut 1/2 inch -13 A4 Stainless Steel Pack Size : 4
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