High-strength fasteners used with electroplated coatings may require additional review for hydrogen embrittlement. Risk depends on steel hardness, the coating process, part geometry and post-plating controls.
What to Review
For grades such as 10.9 and 12.9, confirm the applicable material standard, surface treatment, hardness range and any required baking or testing procedure. The supplier should provide documents that match the purchase specification.
Coating Selection
Electroplated and non-electrolytic coatings have different process controls and corrosion requirements. Select the coating according to the environment, appearance, friction needs and project standard rather than by brand name alone.
Specify Before Ordering
State the grade, coating, dimensions, friction or torque requirements, inspection documents and any hydrogen-embrittlement controls in the drawing or purchase order. Final requirements should follow the applicable standard and project risk review.
Related sourcing: review the high-strength fastener range and contact the hardware team with your specification.