Which screwdriver bit is required for this screw?

You use a T20 bit (T-STAR plus) for optimal bit engagement and power transfer.

Is this screw suitable for outdoor use?

Yes, A2 stainless steel provides high corrosion resistance for outdoor and damp environments.

What is the benefit of the countersunk head?

The countersunk multi head cuts neatly into wood, allowing the screw to sit flush with the surface.

What is the purpose of a full thread?

Full thread absorbs high tensile and compressive forces, providing maximum holding strength.

Do you need to pre-drill before driving this screw?

Pre-drilling is not required in soft wood, but is recommended when working with hard wood.

SPAX 1197000400203 chipboard screw 4 x 20 mm full thread countersunk head T-STAR plus T20 stainless steel A2

Name: SPAX 1197000400203 chipboard screw 4 x 20 mm full thread countersunk head T-STAR plus T20 stainless steel A2
Brand: SPAX
SKU: 02533152
Price: 0.08 EUR
Availability: InStock

Supplier number: SPAX 1197000400203 | EAN

0.08 tax incl.

€0.07 excl. VAT (incl. all environmental contributions)

On stock - immediately available

The minimum purchase order quantity for the product is 200.

Ordered before 20:00 - delivered as of 16/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Resilient outdoor fastening by Spax

Practical benefits

Maximum power transfer efficiency: The T-STAR plus T20 recess gives you a secure bit fit to prevent cam-outs during fast driving.
Reliable protection against corrosion: Formed from A2 stainless steel, it keeps your exterior wood structures firmly protected from weather and moisture.
Clean flush surface finish: The countersunk multi head neatly recesses itself into the wood, ensuring you achieve a flat, splinter-free surface.

In a nutshell

The right choise for

With the Spax chipboard screw 4 x 20 mm, you can fasten wooden components and hardware quickly, securely, and with total precision. The t-star plus T20 recess provides an optimal bit fit to prevent cam-outs and ensure efficient power transfer. Thanks to the countersunk multi-head design, the screw sinks cleanly and flush into the wood surface without the need for prior countersinking. Its full-thread construction delivers exceptional pull-out resistance and holding strength in thin materials. Made from durable A2 stainless steel, this screw provides reliable protection against corrosion and moisture, making it ideal for damp indoor rooms or sheltered outdoor projects.

Product information FAQ

€0.08

In stock - tax incl.

Key features according to our expert

Diameter: 4 mm
Material (screw): Stainless steel
Surface treatment (screw): Bright
Head shape (screw): Countersunk
type (screw head): T20
Drive type: Torx
Bolt/screw type: Full thread
Thread length: 16 mm
Length: 20 mm

Product description:

Flat countersunk head, T-STAR plus
With MULTI Head and 4CUT, synthetic coating
Stainless steel A2 II

Application:

Outdoor applications - Direct exposure to elements

Advantage:

In the long term, galvanised protective coatings frequently do not sufficiently protect steel screws against corrosion in outdoor areas. Rust is not just ugly but also expensive. In particular, if the quality of expensive products or components deteriorates and results in consequential damage.Costly reworks and repairs become necessary. Rust can be avoided. The SPAX rust-free stainless steel offers protection against corrosion.

Special properties:

Stainless steel A2 II: high corrosion protection
T-STAR plus: secure bit grip, no cam-out effect, optimal force transmission

Features:

4CUT: allows screwing in without pre-drilling (wood-dependent), reduces splitting as square end displaces the fibres
Ground serrations: up to the point - quick and secure fastening
MULTI Head: flush countersinking. Mills in wood and stops on metal

All Features

Diameter: 4 mm
Material (screw): Stainless steel
Surface treatment (screw): Bright
Head shape (screw): Countersunk
Type (screw head): T20
Drive type: Torx
Bolt/screw type: Full thread
Thread length: 16 mm
Length: 20 mm
Wire length: 16 mm

Brand SPAX
02533152
EAN
Supplier number SPAX 1197000400203

Frequently asked questions about this product

Answered by specialists

Which screwdriver bit is required for this screw?: You use a T20 bit (T-STAR plus) for optimal bit engagement and power transfer.
Is this screw suitable for outdoor use?: Yes, A2 stainless steel provides high corrosion resistance for outdoor and damp environments.
What is the benefit of the countersunk head?: The countersunk multi head cuts neatly into wood, allowing the screw to sit flush with the surface.
What is the purpose of a full thread?: Full thread absorbs high tensile and compressive forces, providing maximum holding strength.
Do you need to pre-drill before driving this screw?: Pre-drilling is not required in soft wood, but is recommended when working with hard wood.