Hex nut expansion bolts are suitable for securing concrete, brick, doors, windows, awnings, fences, ceilings and more, which are widely used in construction projects and home repairs, such as securing air conditioners, awnings, security doors, billboards, and guardrails.SpecificationColor: Silver ToneMaterial: 201 Stainless SteelSize: M12 x 120mmSleeve Outer Diameter: 14mm / 0.55 inchSleeve Length: 90mm / 3.54 inchPackage List: 2 Pcs x Expansion BoltsAdvantage:Made of 201 stainless steel, these expansion sleeve bolts are sturdy, wear-resistant, rust-resistant, corrosion-resistant and durable, making them suitable for indoor and outdoor use, even in humid environments.
eBay