Which bit size is required for these screws?

You need a T20 bit designed for T-STAR plus or standard Torx drive systems.

What is the advantage of partial thread screws?

Partial threading pulls the upper board tightly against the substructure for a firm, gap-free connection.

Is pre-drilling required in wood?

Pre-drilling is generally not required in softwoods, except when fastening close to the edge of the material.

What are the benefits of the WIROX coating?

The WIROX coating provides reliable corrosion protection for interior applications and sheltered outdoor areas.

How does the countersunk multi head perform during fastening?

It countersinks flush into wood and brakes on metal hardware to prevent over-tightening and material damage.

SPAX 0191010400455 chipboard screw 4 x 45 mm countersunk head T-STAR plus T20 steel

Name: SPAX 0191010400455 chipboard screw 4 x 45 mm countersunk head T-STAR plus T20 steel
Brand: SPAX
SKU: 02608489
Price: 0.05 EUR
Availability: InStock

Supplier number: SPAX 0191010400455 | EAN 4003530149474

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
Delivered from Belgium

✆ Talk to a specialist

Solid wood fastenings with Spax

Practical benefits

Secure drive without slipping: The T-STAR plus T20 drive ensures you achieve a tight bit fit that prevents cam-out and slippage.
Strong clamping with partial-thread: The partial thread draws wooden components together tightly, ensuring you get seamless joints without surface gaps.
Enhanced corrosion-resistant coating: The advanced WIROX surface finish gives you significantly higher protection against rust than standard zinc plating.

In a nutshell

The right choise for

With Spax partial-thread screws, you join timber components, battens, and furniture parts securely with maximum clamping force. The partial thread pulls the top board tightly against the substructure, creating gap-free joints every time. Thanks to the t-star plus T20 drive recess, your bit fits securely to prevent cam-out and slippage, giving you total control and efficient driving. The countersunk multi head finishes flush with the timber surface without the need for pre-drilling in softwoods. Finished with a Wirox coating, the steel screw delivers dependable corrosion protection for indoor installations and sheltered outdoor areas.

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: Partial wire
Thread length: 30 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:

Partial thread: firm tightening of the upper wood layer
Blue zinc plated A2J
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): Steel
Surface treatment screw: Wirox
Head shape (screw): Countersunk
Type (screw head): T20
Drive type: Torx
Bolt/screw type: Partial wire
Thread length: 30 mm
Length: 45 mm
Wire length: 30 mm

Brand SPAX
02608489
EAN 4003530149474
Supplier number SPAX 0191010400455

Frequently asked questions about this product

Answered by specialists

Which bit size is required for these screws?: You need a T20 bit designed for T-STAR plus or standard Torx drive systems.
What is the advantage of partial thread screws?: Partial threading pulls the upper board tightly against the substructure for a firm, gap-free connection.
Is pre-drilling required in wood?: Pre-drilling is generally not required in softwoods, except when fastening close to the edge of the material.
What are the benefits of the WIROX coating?: The WIROX coating provides reliable corrosion protection for interior applications and sheltered outdoor areas.
How does the countersunk multi head perform during fastening?: It countersinks flush into wood and brakes on metal hardware to prevent over-tightening and material damage.