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The Range£5.92Visit shop Jcp Fixings Self-Drilling Screws 4.8 X 16Mm - Fjgp48016 - Box Of 100 - Grey
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The JCP Fixings Ankerbolts Csk Head BZP are professional-grade heavy-duty fasteners designed for construction professionals and DIY enthusiasts who require secure, flush-mount anchoring in various substrates. Featuring a Bright Zinc Plated finish for increased durability against corrosion, these bolts offer high-performance stability for mounting heavy fixtures; however, users should note that they require precise pilot hole drilling to ensure proper expansion and load-bearing capacity.
| Colour | Grey |
|---|---|
| Model Part Number | 1268121 |
| Brand | JCP Fixings |
They feature a BZP finish which offers good corrosion resistance, but they are primarily recommended for indoor or protected outdoor applications. Avoid use in high-salt or extremely damp environments.
These bolts are optimized for solid substrates such as concrete, solid brick, and stone.
Yes, they can be unscrewed, though the internal threads of the substrate may be compromised, making it difficult to reuse the same hole for a second bolt.
No, these are designed as self-anchoring bolts that function by expanding directly into the substrate once tightened.
The primary benefit is aesthetic and safety-related; it allows the bolt to sit flush with the surface, preventing snagging or unwanted protrusions.
The hole may be too large or the masonry is too soft/friable; use a smaller hole or move to a more stable section of the substrate.
Check that the pilot hole is deep enough to accommodate the full length of the bolt shank and ensure no debris is trapped in the bottom of the hole.
Ensure the pilot hole diameter is correct; if it is too tight, the bolt will experience excessive resistance during installation.
For optimal results, start by selecting a drill bit that matches the bolt's manufacturer-recommended diameter. Ensure the hole is drilled to the required depth and is thoroughly cleaned of dust and debris using a brush or vacuum to maximize the anchor's grip. Drive the bolt into the hole using an appropriately sized socket or screwdriver until the head is flush with the surface. For long-term care, periodically inspect the bolt heads for signs of wear or movement if the structure is subject to vibration, and ensure that the installation area remains free of standing water to maintain the integrity of the zinc finish.
