Milling Point Self-Drilling Screws for Thick Steel

Milling Point Self-Drilling Screws are heavy-duty No.5 self-drilling screws designed for steel-to-steel fastening and drilling through thick steel plates.

With a specially developed milling point, these screws provide faster drilling performance, require less pressing force, and reduce drilling time compared with conventional self-drilling screws.

SANN MUO's Milling Point Self-Drilling Screws are designed for applications requiring efficient and consistent drilling through steel up to 12 mm thick, making them particularly suitable for professional metal construction and high-productivity fastening applications.

What Are Milling Point Self-Drilling Screws?

A Milling Point Self-Drilling Screw is a heavy-duty self-drilling screw with a specialized No.5 milling point designed to drill through thick steel before forming the threaded connection.

Unlike conventional screws that require a separate pilot hole, the self-drilling point combines:

Drilling + Thread Forming + Fastening

into a single installation process.

This can simplify installation and reduce the number of operations required when fastening steel components.

Typical Applications

• Steel-to-steel fastening
• Thick steel plate fastening
• Metal-to-metal connections
• Structural metal assemblies
• Heavy-duty sheet metal applications
• Metal construction
• Industrial steel fabrication

Milling Point Design for Thick Steel

The milling point is the key feature of this product.

The specialized point geometry is designed to efficiently remove steel material during drilling while maintaining stable drilling performance.

This allows the screw to penetrate thick steel with less operator pressure and shorter drilling time.

Milling Point Drilling Process

Milling Point Contacts Steel

↓

Point Cuts / Removes Steel Material

↓

Screw Penetrates Thick Steel

↓

Thread Engages the Steel

↓

Secure Steel-to-Steel Connection

The result is a single fastener that can perform both the drilling and fastening functions.

Faster Drilling Through Thick Steel

One of the main advantages of Milling Point Self-Drilling Screws is their fast drilling performance.

When working with thick steel, drilling time can become a significant part of the total installation time.

The milling point is designed to reduce the time required to penetrate the steel, helping operators complete fastening more efficiently.

Key Benefits

• Shorter drilling time
• Faster penetration
• Less pressing force
• Efficient drilling through thick steel
• Consistent drilling performance

This makes Milling Point SDS particularly valuable for applications involving a large number of steel-to-steel connections.

Less Pressing Force During Installation

Drilling thick steel can require considerable pressure from the operator.

The Milling Point design is engineered to cut through steel efficiently, helping reduce the amount of pressing force required during installation.

This can provide a more comfortable and efficient installation process.

Installation Advantage

Less Pressing Force

→ Easier Drilling

→ Shorter Drilling Time

→ Higher Installation Productivity

For professional contractors and steel fabricators, reducing operator effort can be particularly valuable during repetitive fastening operations.

Designed for Steel up to 12 mm Thick

Milling Point Self-Drilling Screws are designed for thick steel applications up to 12 mm, depending on the specific screw configuration and application conditions.

This makes them suitable for applications where conventional self-drilling screws may require longer drilling times or greater installation force.

Typical Steel Applications

• Thick steel plates
• Steel channels
• Structural steel components
• Heavy-gauge steel sections
• Steel-to-steel assemblies
• Industrial metal fabrication

The actual drilling capacity should be confirmed according to the screw diameter, material, point configuration, substrate hardness, and installation equipment.

Steel-to-Steel Self-Drilling Screws

The primary application of Milling Point Self-Drilling Screws is steel-to-steel fastening.

The screw is designed to:

• Drill through the first steel layer
• Penetrate the mating steel component
• Form the required thread engagement
• Clamp the steel components together

This eliminates the need for a separate drilling and tapping process in suitable applications.

Steel-to-Steel Applications

• Metal frames
• Steel structures
• Industrial equipment
• Metal fabrication
• Steel panels
• Heavy-duty metal assemblies

Consistent Drilling Performance

When drilling thick steel, consistency is just as important as drilling speed.

An inconsistent drilling point can result in:

• Longer installation time
• Excessive operator pressure
• Point damage
• Increased installation variation
• Reduced productivity

The Milling Point design is intended to provide stable and consistent drilling performance through thick steel.

This makes it suitable for professional production environments where repeatable installation performance is important.

Milling Point Self-Drilling Screws for High-Productivity Applications

Milling Point SDS is particularly suitable when drilling efficiency and labor productivity are important.

The higher drilling performance can be valuable in markets where installation labor represents a significant portion of total project cost.

Recommended for

• High-volume steel fastening
• Professional contractors
• Steel fabricators
• Metal construction
• Industrial manufacturing
• Labor-cost-sensitive markets

For repetitive installation, a faster drilling screw can potentially reduce the total time required per fastening point.

Milling Point Self-Drilling Screw Material and Specifications

SANN MUO manufactures Milling Point Self-Drilling Screws primarily in carbon steel for heavy-duty steel applications.

Milling Point Self-Drilling Screw Size Chart

Available Length Range: 12–250 mm / 1/2"–10"

Actual available combinations should be confirmed according to the required screw diameter, head configuration, point design, material, and application.

Applications of Milling Point Self-Drilling Screws

Milling Point Self-Drilling Screws are suitable for professional applications requiring efficient drilling through thick steel.

Metal Construction

• Steel structures
• Metal frames
• Steel panels
• Industrial buildings

Steel Fabrication

• Steel components
• Heavy-gauge steel
• Metal assemblies
• Fabricated steel structures

Industrial Applications

• Machinery
• Equipment
• Metal assemblies
• Industrial manufacturing

High-Volume Fastening

• Repetitive steel installation
• Production lines
• Large steel projects
• Professional contracting

Frequently Asked Questions About Milling Point Self-Drilling Screws

Q. What is a Milling Point Self-Drilling Screw?

A Milling Point Self-Drilling Screw is a heavy-duty self-drilling screw using a specialized No.5 milling point designed to drill through thick steel before forming the fastening connection.

Q. What is the main advantage of a milling point?

The main advantage is faster drilling through thick steel with less pressing force and shorter drilling time.

Q. How thick of steel can a Milling Point SDS drill?

The current product is designed for steel up to 12 mm thick, depending on the specific screw configuration and application conditions.

Q. Are Milling Point Self-Drilling Screws used for steel-to-steel fastening?

Yes. Steel-to-steel fastening is the primary application.

Q. Do Milling Point SDS require a pilot hole?

No separate pilot hole is required in suitable applications because the self-drilling point performs the drilling operation before thread engagement.

Q. Are Milling Point SDS faster than standard self-drilling screws?

The milling point is specifically designed for faster drilling performance through thick steel and shorter drilling time.

Q. Do Milling Point SDS require less operator pressure?

Yes. The milling point is designed to reduce the pressing force required during drilling.

Q. What material are these screws made from?

The current product specification lists carbon steel 1022 / 1018.

Q. What sizes are available?

The current specification includes #12–#14 / M5.5–M6.3, with lengths from 12–250 mm / 1/2"–10".

Q. Are these screws suitable for high-volume steel installation?

Yes. Their faster drilling performance makes them particularly suitable for applications involving repetitive steel-to-steel fastening.

Q. Can SANN MUO customize Milling Point Self-Drilling Screws?

Yes. SANN MUO can customize the diameter, length, head, drive, point geometry, thread, material, coating, and packaging according to customer requirements.

Q. Can SANN MUO manufacture OEM Milling Point SDS?

Yes. Customers can provide drawings or samples for evaluation and OEM production.