https://www.iqsdirectory.com/expansion-bolts/
Expansion Bolt Manufacturers Suppliers | IQS Directory
Locate expansion bolt manufacturers offering stainless steel and bronze options at competitive prices.
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https://www.sidafasteners.com/
Screw, Expansion Bolt, Sleeve Anchor - Sida
Hebei Sida Trading Company's main products are Bolt, Screw, Expansion Bolt, Sleeve Anchor, Chain, Wire Rope Fittings, Nut, Brass Parts, Ring, etc.
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https://www.merriam-webster.com/dictionary/expansion%20bolt
EXPANSION BOLT Definition & Meaning - Merriam-Webster
The meaning of EXPANSION BOLT is a bolt operating in or by an expanding attachment fitted in wood, iron, or masonry.
expansion boltdefinitionmeaningmerriamwebster