Fastener surface treatment guides: zinc plating, hot-dip galvanizing, Dacromet, black oxide, phosphating, stainless passivation — coating thickness, salt spray hours and how to specify on a PO.
“Zinc plated” is the most under-specified callout on a fastener PO. Learn what each coating system delivers and the exact wording to put on your order.
Zinc Plating for Fasteners: Thickness, Salt Spray & Specification Read More »
Corrosion resistance directly affects fastener service life. This article compares the three mainstream surface treatments in salt spray duration, thickness, suitable environments and cost, with recommendations for high-humidity, high-salinity environments in the Middle East and Central Asia.
