Which bit size is required for this screw?

You need a T-STAR plus T20 bit for this screw.

What are the exact dimensions of this screw?

The screw has a diameter of 3.5 mm and a total length of 40 mm.

What is the benefit of the WIROX coating?

The WIROX finish provides significantly higher corrosion resistance compared to standard zinc plating.

Is this a partial or full thread screw?

This is a full thread screw, engineered for high pull-out resistance and strong fastening.

How does the countersunk multi-head sit in the material?

The countersunk head mills cleanly flush into wood and brakes on metal without damaging fittings.

SPAX 1191010350405 chipboard screw 3.5 x 40 mm full thread countersunk head T-STAR plus T20 steel

Name: SPAX 1191010350405 chipboard screw 3.5 x 40 mm full thread countersunk head T-STAR plus T20 steel
Brand: SPAX
SKU: 02338418
Price: 0.04 EUR
Availability: InStock

Supplier number: SPAX 1191010350405 | EAN 4003530106453

0.04 tax incl.

€0.03 excl. VAT (incl. all environmental contributions)

On stock - immediately available

The minimum purchase order quantity for the product is 1000.

Ordered before 20:00 - delivered tomorrow 17/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

✆ Talk to a specialist

Reliable timber fastening with Spax chipboard screws

Practical benefits

Stable bit engagement: The T-STAR plus T20 drive provides an exact bit fit to eliminate slipping while driving screws.
Clean and flush finish: Featuring a countersunk multihead, it sinks neatly into wood to deliver a smooth surface.
Strong protection against corrosion: The advanced WIROX coating provides reliable rust defense for all your indoor woodworking projects.

In a nutshell

The right choise for

With the Spax chipboard screw 3.5 x 40 mm, you achieve strong and dependable timber joints in all your interior projects. The t-star plus T20 drive ensures an exact bit fit without slipping or cam-out, giving you full control during driving. Its full thread delivers high pull-out resistance and a secure hold in materials like chipboard and MDF. The countersunk multihead cleanly countersinks flush into wood for a smooth, professional finish. In addition, the advanced wirox coating provides significantly higher corrosion resistance than standard zinc plating, making it an excellent choice for furniture assembly, stud framing, and dry interior construction.

Product information FAQ

€0.04

In stock - tax incl.

Key features according to our expert

Diameter: 3,5 mm
Material (Screw): Steel
Surface treatment screw: Wirox
Head shape (screw): Countersunk
type (screw head): T20
Drive type: Torx
Bolt/screw type: Full thread
Thread length: 35 mm
Length: 40 mm

Product description:

Flat countersunk head, T-STAR plus
With MULTI Head and 4CUT, hardened, synthetic coating
Blue zinc plated A2J

Application:

Universal usage

Advantages:

No pre-drilling (wood-dependent)
Quick and safe fastening with reduced driving in torque (more screwed connections per battery charge)
Effectively reduces splitting of the wooden material, even when close to the edge
Multifunctional applications indoors

Special properties:

T-STAR plus: secure bit grip, no cam-out effect, optimal force transmission
Blue zinc plated A2J

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: 3,5 mm
Material (screw): Steel
Surface treatment screw: Wirox
Head shape (screw): Countersunk
Type (screw head): T20
Drive type: Torx
Bolt/screw type: Full thread
Thread length: 35 mm
Length: 40 mm
Wire length: 35 mm

Brand SPAX
02338418
EAN 4003530106453
Supplier number SPAX 1191010350405

Frequently asked questions about this product

Answered by specialists

Which bit size is required for this screw?: You need a T-STAR plus T20 bit for this screw.
What are the exact dimensions of this screw?: The screw has a diameter of 3.5 mm and a total length of 40 mm.
What is the benefit of the WIROX coating?: The WIROX finish provides significantly higher corrosion resistance compared to standard zinc plating.
Is this a partial or full thread screw?: This is a full thread screw, engineered for high pull-out resistance and strong fastening.
How does the countersunk multi-head sit in the material?: The countersunk head mills cleanly flush into wood and brakes on metal without damaging fittings.