SPAX 4577000450257 mortise screw, 4.5 x 25 m

Name: SPAX 4577000450257 mortise screw, 4.5 x 25 m
Brand: SPAX
SKU: 03198026
Price: 0.3 EUR
Availability: InStock

Supplier number: SPAX 4577000450257 | EAN 4003530266812

0.30 tax incl.

€0.25 excl. VAT (incl. all environmental contributions)

On stock - immediately available

The minimum purchase order quantity for the product is 75.

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Weatherproof fastening for exterior installations

Practical benefits

Durable protection against corrosion: The stainless steel A2 construction protects your exterior roof fastenings and trims against rust and outdoor exposure.
Reliable seal against moisture: The integrated 20 mm sealing washer prevents water penetration through the drill hole and distributes pressure evenly on panels.
Easy driving without pre-drilling: The engineered tip and T20 drive ensure you seat each plumbing screw smoothly into timber without splitting the material.

In a nutshell

The right choise for

With the Spax plumbers screw, you achieve a durable, watertight fixing for outdoor installations on wooden substructures. The integrated 20 mm sealing washer securely seals the drill hole against moisture ingress and distributes pressure evenly across metal sheets, flashings, and facade panels. Made from A2 stainless steel, this screw provides long-lasting resistance against rust and harsh weather. The 4CUT point prevents wood splitting and eliminates the need for pre-drilling, while the t-star plus T20 drive ensures optimal grip and maximum control while driving.

Product information FAQ

€0.30

In stock - tax incl.

Key features according to our expert

Diameter: 4,5 mm
Material: Stainless steel A2
For material: Wood
Length: 25 mm

Product description

No splitting of the wood, even at small edge distances
High resistance to weathering and corrosion
Quick and reliable processing with little effort
Application: exterior and roof applications - exposed to weather influences

Nothing can damage a structure as much as water penetration. To prevent this, not only do the building materials used have to be water-resistant, but the connecting materials are also part of a well-thought-out sealing system. The SPAX gusset screw is used where plastic roof panels, metal sheets or connection profiles must be fastened tightly and permanently.

For this purpose, our washer screw is made of stainless steel and comes with an EPDM sealing washer already inserted. The latter prevents water from penetrating into the roofing and construction via the drilled hole. Unlike other products, our sealing ring consists of a single piece with a diameter of 20 mm. This benefits not only the seal itself, but also the pressure distribution on the often sensitive plastic or metal surfaces.

Screw and sealing ring are made of A2 stainless steel and can easily withstand exposure to weather conditions. In addition to the larger sealing ring, it is above all our own SPAX features that make our SPAX mortise screw so special: these include the T-STAR plus power gripping and the 4CUT tip, which offer unique processing advantages.

What this means for you: you can reliably fasten roof boards and cladding with a single working step and permanently seal the fastening points.

All Features

Diameter: 4,5 mm
Material: Stainless steel A2
For material: Wood
Length: 25 mm
Wire length: 18 mm

Brand SPAX
03198026
EAN 4003530266812
Supplier number SPAX 4577000450257

Frequently asked questions about this product

Answered by specialists

What are these plumber screws used for?: You use them to achieve a watertight fixing of sheet metal, profiles, or plastic panels onto wooden substructures.
Which bit size is required for these screws?: You need a T20 bit (T-STAR plus T20).
What is the benefit of the 4CUT point?: The 4CUT point reduces splitting of the wood and enables easier driving with less required torque.
Are these screws suitable for outdoor use?: Yes, the A2 stainless steel provides excellent corrosion resistance against outdoor weather conditions.
What is the function of the 20 mm sealing washer?: The pre-assembled washer with EPDM seal prevents water ingress through the drill hole and distributes pressure.