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Springco Metal Coating applies Zinc Phosphate & Oil as well as Trivalent Yellow & Clear Zinc Dichromate for the fastener industry. We have the ability to Hydrogen embrittlement relief bake parts, if parts are hardened and require that additional process.

Heavy Bolts processed with the Zinc Phosphate & oil process.Heavy Bolts processed with the Zinc Phosphate & oil process. Thread covers can be reapplied to the parts to protect threads from damage. Springco can do both Rack and Barrel processing.

Clear trivalent Zinc Chromate plating. These large Bolts were baked for 4 hours at 400F for Hydrogen Embrittlement relief prior to being re-racked for the Chromate portion of the process.

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