A4 stainless steel expansion bolt for concrete - sold individually

A4 acid-resistant expansion bolt is a heavy-duty, corrosion-resistant fastener used for mounting structures in concrete and natural stone. The expansion bolt is installed in a pre-drilled hole and locks into place when the nut is tightened, pressing the expansion section against the walls of the hole to create a strong anchor.

Expansion bolts are often used to fasten steel and timber structures, machinery, railings, and other heavy installations where high strength is required.

The A4 material (acid-resistant stainless steel) provides excellent corrosion protection, making the expansion bolt especially suitable for outdoor use, damp environments, coastal areas, and other demanding conditions where standard zinc-plated fasteners do not provide sufficient protection.

Price is per piece.