Corrosion Protection for Bolts: Black, Oiled, Galvanised or Painted?
How common bolt finishes compare, where each makes sense, and the details to watch when you specify galvanised bolts and nuts.
Insights
Bhilai-based manufacturer of high-strength hex bolts (M12–M64, IS 1363), RDSO fish bolts, track bolts for points & crossings, railway plate screws, foundation bolts and specialised fasteners to drawing. Serving SAIL Bhilai Steel Plant, Indian Railways and industry for 40 years.
How common bolt finishes compare, where each makes sense, and the details to watch when you specify galvanised bolts and nuts.
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