SPAX 0197000400403 chipboard screw 4 x 40 mm countersunk head T-STAR plus T20 stainless steel A2

Name: SPAX 0197000400403 chipboard screw 4 x 40 mm countersunk head T-STAR plus T20 stainless steel A2
Brand: SPAX
SKU: 02339165
Price: 0.1 EUR
Availability: InStock

Supplier number: SPAX 0197000400403 | EAN 4003530091858

0.10 tax incl.

€0.08 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 tomorrow 30/09/2026
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

Reliable outdoor fastening with Spax

Practical benefits

High resistance against corrosion: Crafted from A2 stainless steel, it withstands weather exposure so your outdoor wood projects remain protected from rust over time.
Secure bit engagement control: The T-STAR plus T20 drive ensures precise torque transfer and stops your drive bit from slipping during installation.
Clean flush timber finish: The countersunk head pulls materials firmly together and sits level with the surface for a neat appearance.

In a nutshell

The right choise for

With the Spax chipboard screw 4 x 40 mm, you achieve strong and weather-resistant timber joints in every project. Crafted from A2 stainless steel, it delivers reliable corrosion protection, making it ideal for outdoor applications and humid spaces. The 23 mm partial thread pulls wooden components firmly together to eliminate gaps, while the countersunk head creates a neat and flush finish on the wood surface. The t-star plus T20 drive ensures precise torque transfer and stops your driver bit from slipping. This pack contains 200 screws, ready for facade cladding, fence building, and exterior carpentry.

Product information FAQ

€0.10

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: Partial wire
Thread length: 23 mm
Length: 40 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
Partial thread: firm tightening of the upper wood layer

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: Partial wire
Thread length: 23 mm
Length: 40 mm
Wire length: 23 mm

Brand SPAX
02339165
EAN 4003530091858
Supplier number SPAX 0197000400403

Frequently asked questions about this product

Answered by specialists

Which driver bit do you need for these screws?: You need a T20 bit (T-STAR plus) for optimal fit and maximum torque transmission.
What is the benefit of a partial thread compared to a full thread?: The partial thread pulls the top wooden piece tightly and firmly against the underlying base.
Are these A2 stainless steel screws suitable for outdoor use?: Yes, A2 stainless steel provides high corrosion resistance, making it suitable for outdoor applications.
What is the thread length of this screw?: The total screw length is 40 mm, with a thread length of 23 mm.
Is pre-drilling required in wood?: Pre-drilling is generally not required in softwoods, but it is recommended for hardwoods.