JCP Fixings Throughbolts - M12 x 140 - FJTB12140
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Product Information
Full details
The JCP Fixings Throughbolts (M12 x 140) are essential hardware for contractors and DIY enthusiasts who require secure, heavy-duty anchoring in concrete or dense masonry. These bolts offer a high-strength, reliable fastening solution for structural or load-bearing applications, though their permanent installation nature means they require careful planning before drilling.
All features
| Model Part Number | FJTB12140 |
|---|---|
| Brand | JCP Fixings |
Extended Product Information
FAQs
What size drill bit is required for M12 throughbolts?
You should use a 12mm masonry drill bit to ensure the correct interference fit.
Can these bolts be reused?
No, throughbolts are designed for permanent installation and should not be removed or reused.
Are these suitable for outdoor use?
They feature a protective coating for corrosion resistance, but if used in extreme coastal or highly acidic environments, consider stainless steel alternatives.
What is the total length of the bolt?
The total length is 140mm.
Can I install these in aerated concrete?
No, these bolts require high-density concrete or stone to provide the necessary friction for the expansion clip.
Troubleshooting
Bolt spins in the hole without tightening
The hole may be too wide or the material is too soft. Ensure you are using a 12mm bit and that the base material is solid concrete.
Bolt is difficult to hammer into the hole
Ensure the hole is clear of masonry dust and that the drill bit is not worn down, which can result in an undersized hole.
Pros and Cons
Pros
- Excellent load-bearing capacity for structural integrity
- Protective coating provides reliable resistance to oxidation
- Streamlined installation process saves on-site labor time
- Industry-standard sizing for versatile hardware compatibility
Cons
- Not intended for removal after installation
- Requires professional-grade rotary hammer drill for best results
- Strict adherence to hole diameter is mandatory for secure anchoring
Setup, Compatibility & Care
To ensure proper performance, always drill a hole into the base material matching the M12 bolt diameter (12mm) using a quality masonry drill bit. Clear all debris from the hole before insertion to ensure full expansion contact. The bolt should be installed with a wrench, tightening the nut until the specified torque is reached to guarantee the expansion sleeve is fully engaged. These fasteners are intended for use in solid base materials like cured concrete or dense stone; they are not suitable for hollow brick or aerated concrete blocks.