Stainless Steel Expansion Anchor Bolts for Concrete & Masonry — M6 to M20 Sizes:M16x190mm meaning it will shrink to

meaning it will shrink to approximately half its original inner diameter when heat is applied

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wobble-free fit in fastener heads

Stainless Steel Expansion Anchor Bolts for Concrete & Masonry — M6 to M20 Sizes:M16x190mm meaning it will shrink toStainless Steel Expansion Anchor Bolts Reliable Fastening in Concrete & Masonry When a standard screw just won't hold whether you're mounting a structural bracket to a concrete wall, securing a pergola post base to a patio slab, or anchoring heavy equipment to a masonry floor you need a fastener engineered for the job. Contractors, DIY builders, and facility maintenance teams rely on expansion anchor bolts precisely because they grip from the inside