self-drilling screw

AUTO

self-drilling screw is coded for steel

Technical Specification

Characteristics self-drilling screw is coded for steel (up to 12 mm)
Material steel SAE J403 1022 with a transmitic treatment
Standards : DIN 7504K
Protecting the Corsusia Cold balloon 5-8 microns
Head by Box
Installation tool High-speed screwdriver (1000–1800 rpm)
The option Filed to: EPDM ARVUL

Files to Download

Instruction videos self-drilling screw AUTO

installation guide self-drilling screw AUTO

Videos A Better Test on the Area

pull-out test AUTO in steel in 10mm

pull-out test AUTO in steel in thickness 5mm

pull-out test AUTO in steel in thickness 2 m

A variety of codified screws from Adit Ltd

BAUTO

Self-drilling steel screw Metal stainless steel up to 12 m

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ABE

Self-drilling steel screw is immunized to 6mm

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BIE / BIE A4

Self-drilling steel screw Metal stainless steel to 6 m

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ABEI

Stainless-steel self-drilling screw for aluminium cladding sheet, up to 6 mm

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ABP

Self-drilling steel screw to 5mm thick with the head of the PH

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ABR A2

screw stainless steel until 3mm thick with head of kippah

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ABR

Self-drilling steel screw
Up to 5 mm thickness, dome head

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RS / RS A2

self-drilling screw thin head to 5mm thick with a thin, flat head

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PSL

The steel is long with 2 diameters up to 12 m

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PS3

The steel is long with 2 diameters up to 6 m

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BCP-A2

screw stainless steel until 2mm thick with a thin, thin head

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BCP

Self-drilling steel screw to 2mm thick with a thin flat head in different colors

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What is steel thick ADIT AUTO (self-drilling screw Constructive)? Full explanation.

Self-drilling steel screw Order of Order ADIT AUTO (The Israeli construction industry is also known as the Israeli building industry. self-drilling screw to steel is thick Or self-drilling screw Constructive is an advanced engineering solution designed for direct connection to the highly heavy and thick steel profiles. The distinctive characteristic of this screw is a long drilling knife and strengthe (Drill Point #5), which allows it to suffocate steel consteractivity in the thickness of up to 12 mm, to kill itself and create a perfect ounce in one quick and desirable action – without the need for a preliminary drill.

While any standard self-drilling screw is limited to thin boards or minor profiles, Self-drilling steel screw ADIT AUTO It completely saves the need for use of expensive drill bits external drill bits capital in the field and shortens the time of constructive work by tens of percent. The direct result is low installation cost and fast, safe and accurate engineering.

When is the self-drilling screw used for a thick steel? Series series ADIT AUTO Designed for demanding apps such as: connection to hot steel profiles (such as the IPE, HEB, UNP Canals), installing heavy constituencies, industrial steel frameworks, connecting isolated panels to thick profiles, building schets and steel structures across hands.

Advantages steel ADIT AUTO - Engineering power up to 12 mmunusual drilling capacity: A particularly long drilling knife designed for a construction steel in a thickness of 4 mm to 12 mm without effort.
Happy constructive values: Detailed load tables for the values of fun and giracy that enable designers and structures engineers to make a safe and happy static calculation.
steel from strength and a durable coating: The bars are made from steel, which is highly quality thermal with a preventive protective coating, a ring or a beer during the infiltration.
Available in a beta-metallical version (BAUTO): A perfect solution that combines a stainless body to the maximum resistance tocorrosion along with a hard carbon-floor drilling edge designed for direct rashing.
Absolute misleasing of work on the ground: Cancellation of the targeted drilling phase, reducing the mechanical workloads and zero “death time” on construction sites.

Technical data is happy – linking to the steel Constructive

The following data constitute the engineering basis for planning safe structural connections. All the values in tables are in KN to a single screw.
Note: The values listed below are typical load load loads (Nrk/Vrk). For engineering planning, appropriate safety imaging should be applied for a permitted service load, and make sure the profile sufferer for a severance.

ADIT AUTO ST 5.5 – A link to a thick steel profile

A typical failure load parameter (kN)	The thickness of steel 5 mm	The thickness of steel 8 mm	The thickness of steel 12 mm
Failure load – tension (Nrk)	11.2	14.8	15.5
Failure load – shear (Vrk)	8.4	8.4	8.4

ADIT AUTO ST 6.3 – A link to a thick steel profile (the massive diameter)

A typical failure load parameter (kN)	The thickness of steel 6 mm	The thickness of steel 10 mm	The thickness of steel 12 mm
Failure load – tension (Nrk)	14.1	18.9	19.6
Failure load – shear (Vrk)	11.5	11.5	11.5

Geometric and Measurement – The ADIT AUTO Series

The series of coveted bars and type of improvised barbes. AUTO Offering a rigorous engineering specifications adapted to work in high loads:

The diameter of the screw	The range of steel thickness (M)	The length of the Z (M) drilling knife.	Recommended drilling speed (rpm)	Maximum installation (Nm)
ADIT AUTO ST 5.5	4.00 – 12.00	14.0	1000 – 1500	13.0
ADIT AUTO ST 6.3	4.00 – 12.00	15.0	800 – 1200	20.0

installation guide is true for the screws that are scattered in thick steel (12 mm)

exact brilliance: It is recommended to make a slight mark with an emphasis (Ponch) at the point of connection. This prevents the long-standing screw-up filter or click on the coscive profile at the beginning of the work.
Adjusting the speed of the pyrom: A thick steel quaint of 12 mm requires a constant and moderate work in accordance with the technical table. Too fast will cause overheating of the knife, losing its difficulty and burning the edge of the screw.
Maintaining a 90-degree angle: The work tools must be held in absolute quarries to the steel area. Running pressure in a affected angle will result in breaking the wings of drilling and damaging the hard quality of the killing generated.
The closing momentum: Once the head of the screw or the atom of EPDM is sched to the surface, the screwing operation must be stopped immediately. Running over-mand (especially in strong amphlet cortex) may cause the screwhead or the internal killing of the insider in the profile.

All the coded barbarians (intoxicated) models in the Adit catalog

AUTO / BAUTO: The flag series for the screws is particularly thick. A long knife No. 5 that allows direct drilling to 12 mm thickness steel! The BAUTO model is the prestigious beta-metaphysical version that combines a stainless body with a hard steel .
ABE: Self-drilling steel screw classic, a scheduled head with a return, a cold glories. The basic professional series for the connections of the steel profile is a minute and aluminum.
ABEI: The same as ABE, but it is made entirely of 304SS. Especially suitable for aggressive environments, foreign conditions, coastlines and chemical industries.
BIE / BIE A4: Advanced beta-metallali screw (sensitual body and knife from a difficult steel) designed for direct and fast drilling in nirosata and hard steels (also available to stain 316/A4).
PS3 / PSL: Particularly long screws designed to connect an isolated panel (Plan Sandwich) to constipations, and come with a broad EPDM atmosphere to prevent water penetration and rain.
ABP / ABR: Bars are decorated with aesthetic and swimmers. The ABP comes with countersunk head Coney (Counter-Sink) to parts, and the ABR comes with a wide round head.
RSZ / RS A2: Cold screws with a small lens head, designed mainly for delicate and fertilized frames.

Engineering, Proper and uncompromising quality

The construction market is saturated with cheap and uncontrolled products defined as self-drilling screw or self-drilling screw to steel, but in practice suffer from frequent breaking, slow drilling rate or rapid evasion that causes severe structural failure. Company Company Company Company Adit Ltd You are currently providing engineering expertise, full technical documentation and competent load tables. The company’s engineers are available to provide a professional response, adjust the exact diameter and length of the screw to your project, and ensure a standard, safe and durable connection solution over the years.

Common Questions and Answers (FAQ) – Self-drilling steel screw thick and unseen

What is steel of ADIT AUTO and what distinguishes it from a standard self-drilling screw?

ABE is designed for easy steel and Daka profiles, usually up to a thickness of only 5 mm. On the other hand, Self-drilling steel screw ADIT AUTO equipped with a long and special drilling knife of the type "Five Number 5", which allows it to drill directly and connect elements to steel a very thick and massive constructive quintessentially reaching up to 12 mm thick, without any need to prepare a leading hole in advance.

Why is the length of the drilling knife so critical in working with steel in 12mm?

The length of the drilling knife (the part of the uninvolved part at the end of the screw) must always be longer than the total steel thickness that is coded. If the screw barbeg starts to enter the steel before the knife has finished circulating the other side fully, the screw will be locked, shook and even be thrown away. OK, okay. ADIT AUTO The length of the knife is adjusted precisely and reaches 14-15 mm to ensure a clean and complete scuba diving before the onset of the screw in thick steels of 12 mm.

What is the difference between the steel-type of AUTO and the BAUTO model?

The normal AUTO model is made of quality carbon steel and strength with a cold glories coating, and is mainly designed for internal applications or protected areas from moisture. The model BAUTO He is a bi-Metal screw: the screw and head are made of a hard mansipulate and completely standing before corrosion and weather hazards, while the end of the screw and the drill knife may be made of a sharp carbon steel that is pumped in the laser. TheBAUTO allows direct drilling of the 12mm thick steel in tough external applications without compromising long-term protection.

What is the difference between self-drilling screw and the self-brain screw (Self-Tapping)?

self-drilling screw to steel (or self-drilling screw) includes at the end of which a knife and carries out the two operations together: a leading hole is then produced and immediately thereafter creates the killing. Burga in self-aggressOn the other hand, it is not capable of drilling a hole itself; it only knows how to cut and create the evasion inside a drilling hole prepared for it in advance through a separate external drill bit in the corresponding diameter.

What work speeds should be used when installing a thick steel steel?

For screws that are distributed in the diameters of 5.5 mm and 6.3 mm, designed for thick steel, you have to work at moderate speeds of 800 to 1500 rpm (RPM), depending on the diameter and type of steel. Too high speed (as of regular screws without restriction) will burn the edge of the screw’s drill bit and destroy it, while too low speed will not create the power of cutting power needed for the built-in steel.

Can I use the steel steel steel in aluminum structures?

Using the screw steel from a normal glomerate inside an aluminum profile exposed to moisture or other conditions will cause a destructive phenomenon of ulceral corrosion (chemical reaction between the different metals), which will dismant the aluminum around the screw and lead to the failure of the connection. To connect components in aluminum safely, it is mandatory to use the sulcers made of stainless steel, such as a series of ABEI.

What is the difference between the Nrk technical figure and the Nrd figure that appears in engineering specifications?

Value of value Nrk (a typical failure load) represents the absolute physical collapse of the screw or connection as measured in destructive laboratory tests. On the other hand, the value. Nrd (Safely valid) is the official figure in which the engineer uses for actual quantum calculation. The value of the preparedness is obtained by dividing the failed load (Nrk) in strict safety centers in accordance with the relevant construction standards, in order to ensure full security intervals in the area.

Can you use the same steel or the same hole?

No, no way, it is not recommended to reuse. During the initial penetration into the thick steel, the drilling knife and the ovarian experience a certain mechanical erosion that is stimulated by their effectiveness. In addition, the barge returns into the same hole that has already been cut can severely damage the quality of its distinctive grip and its phase of suffering (following the profile). If and is not a screw, it is recommended to replace a completely new screw and place it at a new drilling point in a safe distance from the old hole.

Proved in Area: projects selected in Israel

Airport of In Bermuda

AUTO Self-Drilling Screw

Self-drilling girder screw – drives straight into steel and aluminium profiles up to 12 mm thick, in one pass with no pre-drilling.

Steel & aluminium profiles
Single pass – no pre-drilling
Ø ST 5.5
Up to 12 mm thick
EPDM washer option

AUTO

Carbon steel, zinc plated – steel & aluminium profiles, dry / standard use.

BAUTO

Stainless / bi-metal version – for corrosive, coastal and outdoor environments.

Full range

Compare every ADIT self-drilling steel screw →

Files to Download

Full technical data – the load tables for steel and aluminium profiles, drilling speeds, dimensions and catalogue numbers – is given in the technical datasheet above.

What is a Self-Drilling Screw?

A self-drilling screw combines a hardened drill point and a fastening thread in a single fastener. The point drills the hole and the thread forms the connection in one continuous operation – no pre-drilling, no separate drill bit, and no plug or resin. The ADIT AUTO is a heavy-duty girder screw built for the demanding end of that range, drilling straight into thick profiles where an ordinary self-drilling screw would stall on thin sheet.

The advantage: one pass instead of drill-then-fasten removes the cost of external drill bits and cuts fixing time by tens of percent – for lower installation cost and faster, safer, more accurate work in the field.

The AUTO is supplied in a single size, ST 5.5, with a hexagonal washer head and a cold-galvanized (zinc-plated) finish; an EPDM sealing washer can be added to any length for weather-tight fixings. Using its no. 5 girder screw point it drives straight into steel and aluminium profiles, fastening total thicknesses of roughly 1.75 mm up to 12 mm, in lengths from 32 to 100 mm. It is made of hardened carbon steel (C1035) – surface hardness above 560 HV – and is also available in commercial lacquered colours on request.

Applications

Steel girders & sections

Fastening to IPN/IPE, HEB and UNP girders and other thick structural steel – up to 12 mm in a single pass.

Aluminium profiles

Drives into aluminium profiles as well as steel; the datasheet gives separate load values for each base material.

Insulated & sandwich panels

Fixing insulated panels and cladding for sealed joints in façades and roofing; add an EPDM washer for a weather-tight seal.

Plate-to-plate joints

General plate-to-plate connections in profiles, for total thicknesses up to 12 mm.

Roofing & wall cladding

Profiled metal sheet and cladding fixed to steel purlins and rails.

Industrial steel frames

Sheds, mezzanines and equipment frames where fast, repeatable fastening matters.

Installation Guide

1 · Mark & position

Mark the entry point with a light tap, and hold the screw perpendicular (90°) to the profile.

2 · Set the speed

Use a high-speed screwdriver – 1000–1800 rpm in steel (600–1000 rpm in stainless). Excessive speed can burn the drill point.

3 · Drill through

Let the no. 5 drill point cut fully through before the thread engages; keep the total thickness within the drill-point length or the screw can break.

4 · Seat & finish

Stop as the screw seats against the profile (max. torque approx. 10.4 Nm) – do not overtighten. An impact driver may be used only if you stop the instant it seats. With an EPDM washer, compress until the seal just spreads.

Instruction Videos

Installation guide

Pull-out test – 10 mm steel

Pull-out test – 5 mm steel

Pull-out test – 2 mm steel

Proven in the Field

ADIT AUTO in selected projects.

Bermuda Island Airport

Screen walls and ceilings fixed with ADIT AUTO (2018).

View project →

All projects →

Frequently Asked Questions

Do I need to pre-drill before using AUTO?

No. AUTO is a self-drilling screw – its hardened drill point cuts through the steel and the thread forms the fastening in one pass. This removes the separate drilling step and the cost of external drill bits, and speeds up installation significantly.

How thick a profile can AUTO drill and fasten?

AUTO drills and fastens steel and aluminium profiles up to 12 mm thick in a single pass (recommended total thickness roughly 1.75–12 mm). Match the screw length – 32 to 100 mm – to the joint, and keep the total thickness within the drill-point length so the point clears before the thread engages.

Does AUTO come in other diameters?

No – AUTO is supplied only in ST 5.5, in lengths from 32 to 100 mm (catalogue sizes 5.5×32, 38, 50, 60, 80 and 100). For other diameters or a different duty, see the full ADIT self-drilling range.

Can AUTO be used in aluminium profiles?

Yes. AUTO drives into both steel and aluminium profiles, and the datasheet lists separate load values for each. For fixing thin aluminium and non-ferrous sheet in corrosive conditions, the stainless ABEI is the dedicated option.

What is the difference between AUTO and BAUTO?

AUTO is carbon steel with a cold-galvanized (zinc-plated) finish, for standard use. BAUTO is the stainless / bi-metal version, for corrosive, coastal and outdoor environments where a plain zinc finish is not enough.

What is AUTO made of?

Hardened carbon steel (grade C1035) with a cold-galvanized (zinc-plated) finish and a surface hardness above 560 HV. It is also available in commercial lacquered colours, and with an EPDM sealing washer, on request.

What is the difference between N_rk and N_rd?

N_rk is the characteristic failure load – the load at which the connection physically fails in destructive testing. N_rd is the design load the engineer actually uses: N_rk divided by the safety factors required by the relevant standard. Always design with N_rd, not N_rk. The datasheet lists N_rk, N_rd and recommended (N_rec) values for both steel and aluminium.

Can the screw be reused?

A self-drilling screw forms its own thread as it is driven, so it is intended as a permanent fastening. Removing and re-driving it in the same hole is not recommended, because the formed thread and the drilled hole will not reliably re-engage.

Not sure which self-drilling screw fits your steel? Tell us the steel thickness, the environment and the load – our engineering team will match the diameter, length and coating.

Contact our engineers