BN-880 8*80MM Expansion Bolt Expansion Screw

8*80MM Expansion Bolt Expansion Screw

Quantity : 1pcs

An 8×80 mm expansion bolt (or expansion screw) is a type of anchor used to fix heavy objects securely to solid materials such as concrete, brick, or stone. Here’s a quick breakdown of the specifications and usage:

Specifications:

• 8 mm Diameter: The bolt's diameter is 8 mm, which determines the size of the hole you need to drill for installation.
• 80 mm Length: The bolt's total length is 80 mm, including the threaded section and the expansion sleeve.
• Material: Typically made of steel (often galvanized or stainless for corrosion resistance).

Components:

1. Bolt: The central threaded component.
2. Expansion Sleeve: A metal or plastic sleeve that expands when the bolt is tightened.
3. Washer and Nut (optional): For additional grip and secure attachment.

Applications:

• Fixing heavy items like shelves, brackets, air conditioning units, and machinery to solid surfaces.
• Used in construction, industrial, and DIY projects.

Installation Steps:

1. Drill a Hole: Use a drill bit matching the diameter of the bolt (8 mm in this case) and ensure the depth accommodates the full length of the bolt (80 mm).
2. Insert the Expansion Bolt: Place it into the hole, ensuring the expansion sleeve is flush with the surface.
3. Tighten the Bolt: As you tighten, the expansion sleeve spreads outward, anchoring the bolt securely within the material.