Views: 0 Author: Site Editor Publish Time: 2026-04-24 Origin: Site
Screw plating (or surface finishing) applies a metal or chemical layer to the screw surface to improve corrosion resistance, appearance, hardness, or conductivity. A plain carbon steel screw can rust within minutes. This guide covers common screw plating types and their applications to help you choose wisely.
Taiyuanfeng has extensive plating experience and strict quality control to ensure every screw meets your requirements.
Features：Low cost, good corrosion resistance, silver or yellow appearance. The most common plating.
Applications：Indoor furniture, general machinery, building brackets, non-critical auto parts.
Taiyuanfeng Advantage：We offer blue-white zinc, yellow zinc, black zinc, with salt spray test up to 72+ hours.
Features：Bright appearance, better corrosion resistance than zinc, higher hardness, some lubricity.
Applications：Electronic devices, precision instruments, decorative parts, bathroom fixtures.
Taiyuanfeng Advantage：Uniform coating, controllable thickness, passes 48h neutral salt spray test.
3.Chrome Plating
Features：Very high gloss, wear-resistant, excellent corrosion resistance, mirror-like finish.
Applications：Motorcycle/auto exterior parts, high-end furniture, appliances, display racks.
Taiyuanfeng Advantage：Double or triple chrome plating (copper + nickel + chrome), strong adhesion, no peeling.
Features：Extremely high salt spray resistance (500-1000h), no hydrogen embrittlement, environmentally friendly (Cr6+-free).
Applications：Auto chassis, wind power, bridges, outdoor heavy anti-corrosion environments.
Taiyuanfeng Advantage：We provide Dacromet coating and top coating, colors available in silver grey, black, etc.
5.Black Oxide
Features：Black appearance, very thin (almost no dimensional change), little rust protection (requires oil).
Applications：Optical instruments, tools, military equipment (dry environment).
Taiyuanfeng Advantage：Uniform black oxide, regular or high-temperature type, used with anti-rust oil.
Requirement | Recommended Plating |
Lowest cost, basic rust protection | Zinc |
Indoor rust protection + aesthetics | Nickel |
High wear resistance + mirror finish | Chrome |
Extreme corrosion protection (1000h+) | Dacromet |
Black appearance, dry environment | Black oxide |
Taiyuanfeng can recommend the best plating solution based on your environment and provide samples.
Corrosion resistance: Dacromet > Chrome > Nickel > Zinc > Black Oxide
Cost: Zinc is lowest; Dacromet and Chrome are higher
Dimensional change: Black oxide almost none; Zinc/Nickel ~5-15μm; Dacromet ~10-30μm
Hydrogen embrittlement risk: High-strength screws (≥10.9 grade) should avoid acid-pickling zinc plating – recommend Dacromet or mechanical zinc plating
Conductivity: Nickel and zinc plate conduct well; Dacromet is insulating
Taiyuanfeng strictly performs hydrogen embrittlement relief for high-strength screws to ensure safety.
Choosing the right screw plating can significantly extend product life, reduce cost, and enhance brand image. Use zinc for normal environments, nickel for damp indoors, chrome for high decoration, and Dacromet for heavy corrosion protection.
Contact Taiyuanfeng today for professional plating advice and free samples.
