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Rackhams£4.02Visit shop Rackhams Countersunk Concrete Masonry Anchor Screw 5Mm Torx Bzp Jcp - 2 - 5Mm X 30Mm
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The JCP Fixings Ankerbolts with a countersunk head are high-performance fasteners designed for construction professionals and DIY enthusiasts requiring a secure, flush-mount connection in heavy-duty applications. These bolts provide exceptional structural integrity and long-lasting durability thanks to their bright zinc-plated finish, though users should ensure the base material is suitable for high-torque mechanical expansion anchors before starting their project.
| Colour | Silver |
|---|---|
| Model Part Number | 5014196408989 |
| Brand | JCP Fixings |
No, these ankerbolts rely on expansion within solid materials like concrete or stone and are not recommended for hollow substrates.
You will need a hammer drill, a masonry bit of the correct size, a brush or air blower for cleaning the hole, and an impact driver or wrench for tightening.
These are intended for permanent fastening and are generally not recommended for reuse once the expansion mechanism has been set.
The plating provides a robust barrier against oxidation, extending the lifespan of the bolt in indoor or moderately humid conditions.
Always verify the bolt's packaging or technical data sheet to ensure the drill bit diameter matches the expansion anchor's specifications.
The hole may be too wide or the material is too soft. Check drill bit diameter and substrate strength.
The countersunk area may need to be slightly widened or the bolt driven slightly deeper. Ensure the hole is not blocked by debris.
For proper installation, use a masonry drill bit that matches the bolt's required diameter. Ensure the drill hole is blown clean of debris before inserting the anchor; trapped dust can compromise the expansion mechanism. Drive the bolt into the material using a proper torque-rated driver or wrench until the head is seated flush with the surface. While the zinc-plated finish is resistant to corrosion, avoid using these bolts in highly acidic or marine environments without additional protective coatings. Always store remaining bolts in a dry place to maintain the integrity of the finish.
