Surface Engineering

Fastener Coating Solutions

From corrosion resistance to friction control, we apply engineered surface finishes across a complete range of plating, conversion and diffusion coatings — matched to the load, environment and finish your application demands.

10 Coating processes
ISO Certified finishing
100% Batch traceability
Zinc plated fasteners

Zinc Plating 01

An electroplated zinc layer that sacrifices itself ahead of the base steel, giving fasteners reliable, cost-effective corrosion protection with a bright, uniform finish.

Blackodized fasteners

Blackodizing 02

A black oxide conversion coating that produces a deep matte-black finish, offering mild corrosion resistance while preserving tight part tolerances and dimensions.

QPQ treated components

QPQ Process 03

Quench-Polish-Quench nitrocarburizing builds a hard, wear-resistant case with a polished black finish, delivering excellent fatigue strength and corrosion resistance.

Nickel plated hardware

Nickel Plating 04

A bright, hard-wearing nickel deposit that improves surface hardness and wear resistance while giving fasteners a reflective, decorative appearance.

Zinc nickel coated bolts

Zinc Nickel 05

A zinc-nickel alloy plating engineered for extreme corrosion resistance, widely specified in automotive and aerospace applications with demanding salt-spray requirements.

Phosphate coated fasteners

Phosphating 06

A chemical conversion coating that etches a fine crystalline layer into the surface, improving paint adhesion, corrosion resistance and lubricity for assembly.

Hot dip galvanized bolts and nuts

Hot Dip Galvanizing 07

Fasteners are immersed in molten zinc to form a thick, metallurgically bonded coating that gives complete coverage and long-term outdoor corrosion protection.

Xylan PTFE coated fasteners

Xylan Coating (PTFE) 08

A fluoropolymer topcoat that lowers friction and prevents galling on installation, while adding a chemically resistant barrier over the base finish.

Ceramic fluoro polymer coated parts

Ceramic Fluoro Polymer 09

A ceramic-filled fluoropolymer system that combines high-temperature durability with excellent chemical and corrosion resistance for demanding environments.

Soft nitrided components

Soft Nitriding 10

A low-temperature diffusion process that hardens the surface layer, improving wear resistance and fatigue life without distorting the base component.