Countersunk Head Self Tapping Blue Masonry Screws
Countersunk Head Self Tapping Blue Masonry Screws - 4.8 x 25mm is backordered and will ship as soon as it is back in stock.
Blue Countersunk Self-Tapping Masonry Screws are high-strength SAE C1022 carbon steel fasteners designed for direct anchoring into concrete, brick, and masonry without plastic wall plugs. Featuring a self-tapping thread that cuts directly into masonry, a locator nail point, and a flush-fitting countersunk head, these blue-coated screws streamline the fixing of timber battens, electrical trunking, metal track, and general brackets.
Description
Description
Traditional masonry fixings relying on plastic wall plugs or expansion anchors add extra installation steps and create outward pressure that risks spalling brickwork near edges. These Blue Countersunk Self-Tapping Masonry Screws provide a faster, high-capacity direct fixing solution. Precision-manufactured from hardened SAE C1022 carbon steel with a protective blue finish, they drive straight into a pre-drilled pilot hole cutting their own strong thread into tough concrete and stone while seating flush against your fixture.
Hardened SAE C1022 Carbon Steel
Tapping directly into hard concrete and dense brickwork subjects fasteners to high torsional stress. High-grade SAE C1022 carbon steel is heat-treated for exceptional surface hardness and core toughness. This allows the screw threads to cut cleanly into solid masonry substrates without shearing off under heavy driving torque.
Plug-Free Self-Tapping Design
Inserting plastic rawlplugs or expansion shields slows down high-volume framing and wall-lining jobs. The aggressive self-tapping masonry thread cuts a matching groove directly into the brick or concrete walling. This creates a mechanical interlock along the entire length of the hole, delivering high pullout resistance in fewer installation steps.
Flush Countersunk Head Profile
Protruding screw heads snag cables inside electrical trunking and prevent plasterboard from laying flat against timber wall battens. The countersunk head profile pulls neatly flush into timber countersinks or pre-formed fixture holes, leaving a flat, snag-free surface ready for immediate board installation or wiring.
Locator Nail Point & Protective Blue Finish
Screws wandering across pre-drilled holes delay alignment when securing long timber lengths or metal channels. The sharp nail point locates instantly into the pilot hole to guide the screw straight, while the blue protective finish offers reliable corrosion resistance for indoor and sheltered masonry fixings.
Key Features
- Manufactured from heat-treated SAE C1022 carbon steel.
- Protective blue finish for enhanced durability in masonry applications.
- Direct self-tapping action into concrete, stone, brick, and solid block.
- Flush-fitting countersunk head for a smooth finish.
- Standard Phillips drive recess for positive driver engagement.
- Locator nail point ensures easy alignment into pre-drilled pilot holes.
- Plug-free installation reduces labor time and material costs.
Specifications
Specifications
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What's in the box?
What's in the box?
Hardened SAE C1022 carbon steel.
Delivers high-torque strength to thread directly into dense concrete, brick, and stone.
Plug-free direct fixing.
Eliminates plastic wall plugs for faster, high-strength mounting of battens, tracks, and trunking.
Frequently Asked Questions
Do these screws require plastic wall plugs?
Do these screws require plastic wall plugs?
No. These are direct self-tapping masonry screws. They cut their own mating thread directly into the walls of a pre-drilled pilot hole in concrete or brick, completely eliminating the need for plastic wall plugs.
Do I need to pre-drill a hole before driving these screws?
Do I need to pre-drill a hole before driving these screws?
Yes. Self-tapping masonry screws require a pre-drilled pilot hole (drilled with a masonry bit) slightly smaller than the outer thread diameter to allow the threads to engage and cut into the masonry.
Why choose a countersunk head for masonry fixings?
Why choose a countersunk head for masonry fixings?
A countersunk head sits flush with or slightly below the surface of timber battens, metal track, or trunking. This prevents protruding screw heads from interfering with plasterboard, wiring, or secondary cladding.
Shipping
What countries do you ship to?
What countries do you ship to?
We currently only ship to the UK. To enquire about shipping to a different destination, please contact us.
How long will it take to receive my order?
How long will it take to receive my order?
Shipping normally takes 1 - 2 days. Orders placed before 2:00pm will be shipped same day. Orders placed after 2:00pm on Fridays will be shipped the following Monday.
