Which driver bit do you need for this screw?

You need a PZ2 bit (Pozidriv size 2) to drive this screw.

What is the purpose of the 2.5 mm head hole?

The head hole allows you to push in matching 2.5 mm pin cover caps for a neat, concealed finish.

What are the benefits of the Wirox coating?

The Wirox coating provides significantly higher corrosion resistance than standard zinc plating for indoor use.

What do the countersunk ribs under the head do?

The ribs cut cleanly into the material, allowing the head to sit flush with the wood surface without splintering.

Does this screw have full or partial thread?

This screw features a full thread design to provide strong holding power in timber and boards.

SPAX 0271010450305 chipboard screw 4.5 x 30 mm countersunk head countersunk cross Z Z2 steel

Name: SPAX 0271010450305 chipboard screw 4.5 x 30 mm countersunk head countersunk cross Z Z2 steel
Brand: SPAX
SKU: 02339257
Price: 0.11 EUR
Availability: InStock

Supplier number: SPAX 0271010450305 | EAN

0.11 tax incl.

€0.09 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 as of 14/10/2026
Shipping costs €6.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Clean finishing with Spax

Practical benefits

Neat and flush seating: The countersunk head with milling ribs sinks cleanly into the wood surface without damaging surrounding material.
Ready for decorative caps: You can easily insert push-in cover caps thanks to the integrated 2.5 mm central head hole.
Reliable protection against corrosion: The advanced Wirox coating provides significantly higher corrosion resistance than standard zinc plating for indoor timber structures.

In a nutshell

The right choise for

With Spax s chipboard screws, you assemble timber joints, interior furniture, chipboard, and mdf panels with neat precision. The countersunk head with milling ribs sinks smoothly and flush into the wood surface without splitting the material. Thanks to the integrated 2.5 mm head hole, you can easily insert matching pin cover caps for a completely concealed look. The full thread ensures strong holding power and pull-out resistance, while the Wirox coating provides dependable corrosion protection for indoor applications. Driven effortlessly with a PZ2 bit, this 1000-piece pack gives you the speed, control, and reliability needed for professional assembly work.

Product information FAQ

€0.11

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): PZ2
Drive type: Pozidriv
Bolt/screw type: Full thread
Thread length: 20 mm
Length: 30 mm

Product description:

Flat countersunk head, Cross recess Z
With centre drill (Ø 2,5 mm), hardened, synthetic coating
Blue zinc plated A2J

Application:

Connecting furniture elements
Fastening skirting boards and curtain boards

Advantage:

No pre-drilling (wood-dependent)
Quick and safe fastening with reduced driving in torque
Secure hold of the decorative cap

Special properties:

Flat countersunk head with center drill: for decorative caps with pin
Cross recess Z
Blue zinc plated A2J

Features:

SPAX typical ground serrations: up to the point - quick and secure fastening

All Features

Diameter: 4,5 mm
Material (screw): Steel
Surface treatment screw: Wirox
Head shape (screw): Countersunk
Type (screw head): PZ2
Drive type: Pozidriv
Bolt/screw type: Full thread
Thread length: 20 mm
Length: 30 mm
Wire length: 20 mm

Brand SPAX
02339257
EAN
Supplier number SPAX 0271010450305

Frequently asked questions about this product

Answered by specialists

Which driver bit do you need for this screw?: You need a PZ2 bit (Pozidriv size 2) to drive this screw.
What is the purpose of the 2.5 mm head hole?: The head hole allows you to push in matching 2.5 mm pin cover caps for a neat, concealed finish.
What are the benefits of the Wirox coating?: The Wirox coating provides significantly higher corrosion resistance than standard zinc plating for indoor use.
What do the countersunk ribs under the head do?: The ribs cut cleanly into the material, allowing the head to sit flush with the wood surface without splintering.
Does this screw have full or partial thread?: This screw features a full thread design to provide strong holding power in timber and boards.