Concrete Fixing Screws

Concrete Fixing Screws are designed for fastening non-structural components to concrete and reinforced concrete structures.

SANN MUO Concrete Fixing Screws feature a High-Low Thread design, which helps minimize material displacement during installation while providing a stronger grip in the concrete.

The screws require pre-drilling before installation and are available in multiple materials, diameters, and lengths for different concrete fixing applications.

Concrete Fixing Screw Specifications

Specification	Available Options
Product Name	Concrete Fixing Screws
Primary Application	Non-Structural to Concrete
Installation	Pre-Drill Required
Thread Design	High-Low Thread
Main Function	Concrete Fixing
Carbon Steel	1022 / 1018
Alloy Steel	10B21 / 10B33
Gauge / Diameter	#8 – #14 / M4 – M20
Length	5" – 12" / 100 – 300 mm
Standards	DIN / IFI / ISO / ASTM / ASME
Customization	Customer Drawings & Samples Accepted

What Are Concrete Fixing Screws?

A Concrete Fixing Screw is a screw designed to fasten components directly to concrete.

This product is primarily intended for non-structural concrete fixing applications, where components need to be securely attached to concrete or reinforced concrete.

The screw requires a pre-drilled hole before installation.

Its High-Low Thread is the key product feature, helping reduce the amount of concrete material displaced during installation while providing strong thread engagement.

High-Low Thread Concrete Fixing Screws

The main difference between this Concrete Fixing Screw and a conventional concrete fixing screw is its High-Low Thread design.

The screw incorporates two different thread heights:

High Thread + Low Thread

This thread configuration is designed to:

• Minimize material displacement
• Improve thread engagement
• Provide a stronger grip
• Improve installation performance
• Reduce resistance during screw installation

According to the current SANN MUO product description, the High-Low Thread minimizes the amount of material displaced as the screw is driven into the material while helping create a stronger grip.

How Does a High-Low Thread Concrete Screw Work?

A conventional thread maintains a relatively consistent thread profile along the screw.

A High-Low Thread uses alternating high and low thread sections.

Installation Principle

Pre-Drill → Insert Screw → High-Low Thread Engages Concrete → Reduced Material Displacement → Strong Grip

The low thread helps create additional space around the screw thread, while the high thread provides the primary engagement with the concrete.

This design helps balance installation resistance and thread engagement.

Main Advantages of High-Low Thread Concrete Fixing Screws

Reduced Material Displacement

The High-Low Thread is designed to minimize the amount of material displaced during installation.

This can help improve the installation process compared with a conventional thread design.

Stronger Grip

The High-Low Thread provides increased interaction between the screw and the concrete.

The product is specifically designed to create a stronger grip after installation.

Suitable for Non-Structural Concrete Fixing

This product is positioned for non-structural to concrete applications.

It is therefore particularly suitable when a construction component, fixture, board, or other non-structural element needs to be fixed to a concrete substrate.

Concrete Fixing Screws for Non-Structural Applications

The primary application of this product is:

Non-Structural Component → Concrete

Typical applications can include:

• Construction boards
• Fixtures
• Light building components
• Non-load-bearing components
• General concrete fixing
• Construction accessories

The exact application should be evaluated according to the concrete strength, connected material, screw size, embedment, and required load.

Concrete Board Fixing Screws

For board and panel applications, the Concrete Fixing Screw can be used where a non-structural board or construction component needs to be secured to a concrete substrate.

The High-Low Thread is particularly relevant because it is designed to minimize material displacement while maintaining strong thread engagement.

Typical Concept

Board / Panel → Concrete → Pre-Drill → Concrete Fixing Screw

Concrete Fixing Screw vs. Concrete Anchor Screw

Feature	Concrete Fixing Screw	Concrete Anchor Screw
Primary Application	Non-Structural Fixing	Structural & Non-Structural
Main Purpose	Fix components to concrete	Anchor components to concrete
Thread Design	High-Low Thread	Standard / Product Specific
Pre-Drilling	Required	Required
Board / Panel Fixing	Suitable	Application dependent
General Concrete Fixing	Suitable	Suitable
Steel Plate	Application dependent	Suitable
Timber Truss	Not primary application	Suitable
Steel Truss	Not primary application	Suitable
Main Differentiator	High-Low Thread + Strong Grip	Anchor-oriented fastening
Primary Buyer Need	Efficient non-structural fixing	Concrete anchoring

Simple Selection Guide

Fixing a board, panel, fixture or other non-structural component to concrete?

→ Concrete Fixing Screw

Connecting a structural component such as steel plate or truss to concrete?

→ Concrete Anchor Screw

Concrete Fixing Screw vs. Conventional Concrete Screw

Feature	High-Low Thread Concrete Fixing Screw	Conventional Concrete Screw
Thread	High-Low Thread	Standard Thread
Pre-Drilling	Required	Usually Required
Material Displacement	Designed to minimize	Standard
Grip	Designed for stronger grip	Standard
Main Application	Non-Structural Fixing	General Concrete Fixing
Board / Panel	Suitable	Application dependent
Fixtures	Suitable	Suitable
Concrete Wall	Suitable	Suitable
Main Advantage	Thread efficiency + grip	General concrete fastening

Concrete Fixing Screw Installation

Concrete Fixing Screws require pre-drilling before installation.

Step 1 — Position the Component

Place the board, fixture, panel, or other non-structural component against the concrete.

Step 2 — Pre-Drill the Concrete

Drill the required hole according to the screw specification and installation requirements.

Step 3 — Clean the Hole

Remove concrete dust and drilling debris where required.

Step 4 — Install the Screw

Drive the Concrete Fixing Screw into the pre-drilled hole.

Step 5 — Check Screw Seating

Ensure that the screw head is properly seated and the connected component is securely fixed.

Concrete Fixing Screw Material

SANN MUO offers this product in both carbon steel and alloy steel.

Carbon Steel

• 1022
• 1018

Alloy Steel

• 10B21
• 10B33

These material options allow the product to be manufactured according to different application and performance requirements.

Concrete Fixing Screw Size Options

The current product specification includes:

Gauge / Diameter

• #8
• #9
• #10
• #11
• #12
• #13
• #14
• M4–M20

Length

• 5"–12"
• 100–300 mm

Actual availability should be confirmed according to the required product configuration.

Concrete Fixing Screws for B2B Applications

Concrete Fixing Screws are suitable for B2B buyers involved in:

• Construction hardware
• Building materials
• Concrete fixing systems
• Fastener distribution
• Board and panel installation
• Construction accessories
• Non-structural building components

For these buyers, product selection should consider:

• Concrete type
• Concrete strength
• Board / panel thickness
• Screw diameter
• Screw length
• Embedment depth
• Installation method
• Required holding performance
• Coating requirement

Custom Concrete Fixing Screws

SANN MUO can manufacture Concrete Fixing Screws according to customer requirements.

Customization can include:

• Diameter
• Length
• Head design
• Thread geometry
• High-Low Thread configuration
• Material
• Surface treatment
• Coating
• Packaging

SANN MUO can manufacture according to:

DIN / IFI / ISO / ASTM / ASME

or according to customer drawings and samples.

Concrete Fixing Screws for OEM and Second-Source Buyers

If you are currently purchasing concrete fixing screws from another supplier, SANN MUO can evaluate your existing screw as a potential second-source solution.

For evaluation, buyers can provide:

• Existing screw sample
• Technical drawing
• Current screw dimensions
• Concrete type
• Connected board / material
• Screw diameter
• Screw length
• Installation method
• Required holding performance
• Estimated purchasing quantity

This allows the product to be evaluated according to the actual application, rather than simply comparing screw unit prices.

Concrete Fixing Screws FAQ

What are Concrete Fixing Screws?

Concrete Fixing Screws are screws designed to fasten non-structural components directly to concrete.

What is the main feature of this Concrete Fixing Screw?

The key feature is its High-Low Thread, which is designed to minimize material displacement during installation while providing a stronger grip.

What is a High-Low Thread?

A High-Low Thread uses two different thread heights—a high thread and a low thread.

This thread design helps reduce material displacement and improve screw grip during installation.

Do Concrete Fixing Screws require pre-drilling?

Yes.

The current SANN MUO product specification states that pre-drilling is required.

Are Concrete Fixing Screws suitable for concrete boards?

Yes. They are positioned for concrete board and general non-structural concrete fixing applications.

Are Concrete Fixing Screws structural fasteners?

The current product page positions this product primarily for non-structural to concrete applications.

For structural applications, a suitable Concrete Anchor Screw or specifically engineered fastening solution should be evaluated.

What is the difference between a Concrete Fixing Screw and a Concrete Anchor Screw?

The Concrete Fixing Screw is primarily designed for non-structural concrete fixing and features a High-Low Thread.

The Concrete Anchor Screw is positioned for broader structural and non-structural concrete anchoring applications.

What materials are available?

The product is available in:

Carbon Steel 1022 / 1018

and

Alloy Steel 10B21 / 10B33.

What sizes are available?

The current specification lists:

#8–#14 and M4–M20

with lengths of:

5"–12" and 100–300 mm.

Can the High-Low Thread Concrete Fixing Screw be customized?

Yes.

SANN MUO accepts customer drawings and samples and can manufacture according to international standards or customer-specific requirements.