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Light Expansion Bolt

Your Leading Light Expansion Bolt Supplier

Since 1997, we have been committed to the production and sales of fasteners for steel structure construction. China's top 10 fastener manufacturer, dreaming of becoming the world's top 10. High-strength hex bolt and nut, Foundation bolt and shear stud. It mainly provides supporting products for various end customers in industries such as steel structure construction projects, bridges, large-scale machinery and equipment, wind power, nuclear power, and high-speed rail.

Why Choose Us

Advanced equipment

Our factory is equippedl with professional Spheroidizing furnace, drawing machine, multi-station cold heading machine, high-speed thread rolling machine, nut forming machine, tapping machine, heat treatment mesh belt furnace, phosphorus saponification production line, etc, to meet production needs.

Complete qualifications

The company has passed ISO9001 quality certification system as well as international certification SGS, CE.

Our service

Our team provides a variety of packaging to meet your needs; Multiple quality inspections to meet your quality requirements; All fasteners sold by our company are guaranteed for three years, brand first.

Types of Light Expansion Bolt

Wedge anchors

Wedge anchors consist of a threaded rod, a nut, a washer, and an expansion clip.
The rod is inserted into a pre-drilled hole, and as the nut is tightened, the clip at the bottom expands outward, wedging against the sides of the hole.

Sleeve anchors

Comprise a threaded bolt surrounded by an expanding sleeve.
When the bolt is tightened, the sleeve expands outward, anchoring itself into the hole.

Drop-in anchors

Drop-in anchors are cylindrical and feature an internal thread.
A setting tool is used to expand the bottom of the anchor after it’s placed in a pre-drilled hole.

Concrete screws (tapcon® screws)

Self-tapping screws specifically designed for use in concrete, masonry, or brick.
Feature a high-low thread design that cuts into the material to form its own threads.

Lag shield anchors

Short, cylindrical sleeves made of soft metal like zinc or lead.
A lag screw is driven into the shield, causing it to expand and grip the sides of the hole.

Plastic expansion anchors

Made of plastic and expand when a screw is driven into them, creating a tight grip.
Available in various shapes and sizes to match screw diameter and wall thickness.

Machine screw anchors

Consist of a machine-threaded screw and an internally threaded expansion shield.
When the screw is tightened, the shield expands and anchors itself.

Hammer drive anchors

Driven into a pre-drilled hole with a hammer, the anchor body expands and secures itself.
Typically have a tamper-proof head for added security.

Advantages of Light Expansion Bolt

Immediate load-bearing: The product is ready to use immediately following installation. No need to wait to cure or harden.

Easy installation: It doesn’t require specific tools and mixing chemicals. Most of the time, it can be done with regular tools like wrenches and drills.

Cost-effective: More affordable that chemical anchors notably for lighter to moderate loads.

High pull-out strength in solid materials: Provides a strong hold when employed in uncracked, dense concrete or solid brick.

Variety of types available: There are wedge anchors, drop-in anchors with sleeves, sleeve anchors and strike anchors each one suited to specific conditions.

Application of Light Expansion Bolt

Building and construction: They are essential for anchoring structural components such as beams, columns, and concrete forms into concrete or masonry structures.

Infrastructure projects: Used in the installation of bridges, tunnels, and other large-scale infrastructure where secure anchoring into concrete is required.

Industrial settings: Commonly used to secure heavy machinery, equipment, and conveyors to concrete floors or walls in factories and manufacturing facilities.

Commercial installations: Used for mounting fixtures, shelves, cabinets, and signage securely to walls in retail stores, offices, and public buildings.

Outdoor fixtures

Ideal for securing outdoor fixtures like fences, gates, and playground equipment to concrete pads or masonry foundations.

Renovation and retrofitting

Often used in renovation projects to reinforce existing structures or add new elements securely without major construction.

DIY and home improvement

Popular in DIY projects for securely mounting items such as TVs, shelves, and bike racks to wall panels or floors.

FAQ

Q: What is the difference between wedge anchors and sleeve anchors?

A: Wedge anchors are designed for heavy-duty applications and expand by wedging against the concrete. Sleeve anchors, on the other hand, expand by compressing a sleeve, making them more versatile for use in both concrete and masonry.

Q: Can mechanical expansion anchors be used in cracked concrete?

A: Mechanical expansion anchors perform best in uncracked concrete. For cracked concrete, consider using specialized mechanical anchors designed for that purpose or opt for chemical anchors.

Q: Do mechanical anchors require special tools for installation?

A: Most mechanical anchors require basic tools like a drill, wrench, or hammer for installation. Drop-in anchors may require a special setting tool to expand the anchor.

Q: Are mechanical expansion anchors suitable for seismic zones?

A: While mechanical anchors provide strong support, chemical anchors are often preferred in seismic zones due to their superior performance in cracked and shifting substrates.

Q: What are the best materials for corrosion resistance in mechanical anchors?

A: For environments exposed to moisture or chemicals, choose stainless steel or galvanized steel mechanical anchors, as they offer excellent corrosion resistance.

Q: Which is better, an anchor bolt or an expansion bolt?

A: Anchor bolts should be used when you require strong, long-lasting anchoring especially for structural components that are subject to heavy loads. Expansion bolts are used for dealing with post-construction installations, moderate loads, or when the flexibility of installation and removal is important.

Q: Can expansion bolts be removed?

A: After pulling out the expansion housing, you just need to push the screw in when pulling the expansion tube, and the bolt can be easily taken out. If it does not loosen, you can only use a hammer drill to loosen the outside of the sleeve, and then repair the wall.

As one of the leading light expansion bolt manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please feel free to wholesale high-grade light expansion bolt at competitive price from our factory. Welcome to view our website for more information.

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