Which screwdriver bit is required for these screws?

You need a T20 bit with T-STAR plus engagement for optimal grip and direct power transfer.

What is the benefit of the partial thread design?

The partial thread pulls the top wooden piece tightly against the base structure, ensuring a gap-free joint.

Do you need to pre-drill into softwood?

No, pre-drilling is generally not required in common softwoods and wood-based panels thanks to the screw tip.

Is the Wirox coating suitable for outdoor use?

Wirox provides strong corrosion resistance in covered outdoor areas, but is not intended for direct weather exposure.

What is the thread length of this screw?

This 45 mm screw features a 30 mm thread length and a 15 mm smooth shank portion.

SPAX 0191010450455 chipboard screw 4.5 x 45 mm countersunk head T-STAR plus T20 steel

Name: SPAX 0191010450455 chipboard screw 4.5 x 45 mm countersunk head T-STAR plus T20 steel
Brand: SPAX
SKU: 02608324
Price: 0.06 EUR
Availability: InStock

Supplier number: SPAX 0191010450455 | EAN 4003530154157

0.06 tax incl.

€0.05 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 wood joints with Spax chipboard screws

Practical benefits

Maximum bit grip stability: The T-STAR plus T20 drive ensures a secure bit fit, preventing slipping and wobble while you drive screws.
Tight joint contact pressure: The partial thread design firmly pulls the outer timber piece tight against the supporting structure without gaps.
Durable Wirox corrosion protection: The zinc coating protects the steel against corrosion, making it dependable for indoor use and sheltered outdoor projects.

In a nutshell

The right choise for

With the Spax chipboard screw 4.5 x 45 mm, you create tight and secure timber joints without gaps. The partial thread design firmly pulls the outer wooden piece against the sub-structure for solid fastening. Thanks to the T-star plus T20 drive recess, your bit stays locked in place, eliminating slippage and ensuring full driving control. The countersunk multi-head sinks flush into the wood for a neat, smooth finish. In addition, the zinc Wirox coating provides reliable corrosion protection for interior applications and sheltered outdoor projects. With this pack of 500 screws, you are fully equipped to complete your woodworking and fitting tasks with precision and speed.

Product information FAQ

€0.06

In stock - tax incl.

Key features according to our expert

Diameter: 4,5 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: 4,5 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
02608324
EAN 4003530154157
Supplier number SPAX 0191010450455

Frequently asked questions about this product

Answered by specialists

Which screwdriver bit is required for these screws?: You need a T20 bit with T-STAR plus engagement for optimal grip and direct power transfer.
What is the benefit of the partial thread design?: The partial thread pulls the top wooden piece tightly against the base structure, ensuring a gap-free joint.
Do you need to pre-drill into softwood?: No, pre-drilling is generally not required in common softwoods and wood-based panels thanks to the screw tip.
Is the Wirox coating suitable for outdoor use?: Wirox provides strong corrosion resistance in covered outdoor areas, but is not intended for direct weather exposure.
What is the thread length of this screw?: This 45 mm screw features a 30 mm thread length and a 15 mm smooth shank portion.