Which screwdriver bit is required for these screws?

You need a T20 bit (T-STAR plus). It ensures a secure fit and prevents slipping or cam-out during fastening.

What is the advantage of a full thread?

A full thread provides high pull-out strength across the entire screw length, ideal for firmly securing panels and hardware.

What are the exact dimensions of this screw?

This full-thread screw has a diameter of 4 mm, a total length of 45 mm, and a thread length of 40 mm.

What is the benefit of the countersunk multi head?

The multi head countersinks cleanly and flush into wood without splitting, and stops neatly when seating on metal fittings.

What protection does the WIROX coating provide?

The WIROX surface coating delivers significantly higher corrosion protection compared to standard zinc plating for indoor use.

SPAX 1191010400455 chipboard screw 4 x 45 mm full thread countersunk head T-STAR plus T20 steel

Name: SPAX 1191010400455 chipboard screw 4 x 45 mm full thread countersunk head T-STAR plus T20 steel
Brand: SPAX
SKU: 02338427
Price: 0.05 EUR
Availability: InStock

Supplier number: SPAX 1191010400455 | EAN 4003530107887

0.05 tax incl.

€0.04 excl. VAT (incl. all environmental contributions)

On stock - immediately available

The minimum purchase order quantity for the product is 500.

Ordered before 20:00 - delivered tomorrow 16/10/2026
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 fastenings with Spax

Practical benefits

Optimal drive torque transmission: The T-STAR plus T20 drive ensures an exact bit fit, preventing cam-out and slippage during insertion.
Superior corrosion resistant coating: Engineered with a WIROX coating, the steel screw delivers significantly higher protection against surface rust.
Clean and flush countersinking: The multi countersunk head embeds flush into wood surfaces without tearing or damaging surrounding fibres.

In a nutshell

The right choise for

Tackle demanding joinery and timber projects with the Spax 4 x 45 mm chipboard screw. Its full-thread design provides maximum pull-out resistance across the entire screw length, securely fastening particle boards, MDF, and hardware. With the t-star plus T20 drive, you get optimal bit engagement and full driving control without frustrating slippage or cam-out. The countersunk multi head pulls smoothly into the wood for a clean, flush finish without splitting the timber fibres. Built from steel and protected by an innovative wirox coating, it delivers superior corrosion resistance for interior woodwork, furniture making, and timber frame installations.

Product information FAQ

€0.05

In stock - tax incl.

Key features according to our expert

Diameter: 4 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: 40 mm
Length: 45 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: 4 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: 40 mm
Length: 45 mm
Wire length: 40 mm

Brand SPAX
02338427
EAN 4003530107887
Supplier number SPAX 1191010400455

Frequently asked questions about this product

Answered by specialists

Which screwdriver bit is required for these screws?: You need a T20 bit (T-STAR plus). It ensures a secure fit and prevents slipping or cam-out during fastening.
What is the advantage of a full thread?: A full thread provides high pull-out strength across the entire screw length, ideal for firmly securing panels and hardware.
What are the exact dimensions of this screw?: This full-thread screw has a diameter of 4 mm, a total length of 45 mm, and a thread length of 40 mm.
What is the benefit of the countersunk multi head?: The multi head countersinks cleanly and flush into wood without splitting, and stops neatly when seating on metal fittings.
What protection does the WIROX coating provide?: The WIROX surface coating delivers significantly higher corrosion protection compared to standard zinc plating for indoor use.