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18 Sep , 2025
Through Bolt for Concrete
A through bolt is a concrete anchor you insert through the fixture into a drilled hole. Tighten the nut → the cone expands the sleeve → the bolt grips the concrete. Use M8–M10 for light/medium fixtures, M12–M16 for machinery/steel, and M20 for very heavy loads. Tighten to the recommended torque for safety.
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A through bolt is a mechanical anchor for fixing base plates, frames, railings, cable trays, HVAC supports, and machinery into concrete. It saves time because you install it through the fixture—no extra steps. FERRY Through Bolts are built with an optimum cone angle (controlled expansion), high dimensional accuracy (consistent batches), and corrosion-resistant finish (long life on site).
If you’re between two sizes and the design allows, go one size up. It’s safer and easier to inspect.
Notes: “Fixture hole” = hole in your plate/bracket. “Minimum substrate” = minimum concrete thickness. Measurements may vary within normal tolerances.
| Bolt | Length (mm) | Thread (mm) |
|---|---|---|
| M8 | 50 | 14 |
| M8 | 65 | 25 |
| M8 | 80 | 40 |
| M8 | 115 | 65 |
| Bolt | Length (mm) | Thread (mm) |
|---|---|---|
| M10 | 65 | 22 |
| M10 | 80 | 30 |
| M10 | 95 | 46 |
| M10 | 115 | 65 |
| M10 | 130 | 80 |
| Bolt | Length (mm) | Thread (mm) |
|---|---|---|
| M12 | 80 | 30 |
| M12 | 100 | 40 |
| M12 | 120 | 60 |
| M12 | 135 | 75 |
| M12 | 150 | 90 |
| Bolt | Length (mm) | Thread (mm) |
|---|---|---|
| M16 | 105 | 55 |
| M16 | 140 | 60 |
| M16 | 180 | 100 |
| M16 | 220 | 140 |
| Bolt | Length (mm) | Thread (mm) |
|---|---|---|
| M20 | 125 | 65 |
| M20 | 160 | 65 |
| M20 | 200 | 100 |
| M20 | 300 | 100 |
Buying for projects or annual consumption? Ask for bulk pricing and a size-mix that fits your BOQ to reduce waste.
FERRY International, through bolts, delivers precise, corrosion-resistant, high-load anchoring you can trust—backed by consistent specs, fast through-fixing, and bulk-ready pricing across India.
Enquire Now • WhatsApp Now • Request a Callback
📞 011-41410882
Tell us your fixture thickness, concrete grade, and approximate load—we’ll determine the right M-size, length, and torque, and build a cost-efficient bulk mix.
Is a through bolt good for cracked concrete?
Use according to the engineer’s design and site conditions. Through bolts provide a strong fixing in sound concrete; follow torque specifications and manufacturer's guidance.
What torque should I use?
M8: 15 Nm, M10: 25 Nm, M12: 45 Nm, M16: 110 Nm, M20: 180 Nm (per FERRY specs above).
Can I reuse a through bolt?
No. Treat them as single-use anchors.
Through bolt or chemical anchor?
For speed and repeatability, through bolts are great. For edge-distance issues, high loads in weaker concrete, or specific design cases, your engineer may pick chemical anchors.
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<p><span style="color:rgb(0,0,0);">Anchor bolts are essential fasteners for securing structures like machinery, pipes, and more in place, ensuring safety and stability in construction and industrial projects.</span><br> </p>
<p><span style="color:rgb(0,0,0);">We supply a wide range of anchor bolts like shield anchors, through bolts, brass anchors, drop-in anchors, eye hooks, and J-hooks. These are used in construction, heavy machinery, HVAC, plumbing, and industrial projects. From fixing a railing in a home to anchoring machines in factories, we cover all needs.</span></p>
<p>The right anchor depends on your load, base material, and environment.</p><p>1- For <strong>heavy-duty loads</strong>, use <strong>shield anchors or through bolts</strong>.</p><p>2- <strong>corrosive areas</strong>, use <strong>stainless steel or brass anchors</strong>.</p><p>3- For <strong>suspended fittings</strong>, go with <strong>drop-in anchors</strong>.<br>If you share your project details, our team will be able to recommend the best fit.</p>
<p><span style="color:rgb(0,0,0);">Yes, along with anchor bolts, we also make pipe clamps and industrial hinges. Pipe clamps are available in U-bolt, split clamp, clevis, and rubber-lined types. They are widely used for plumbing, HVAC, fire sprinklers, and industrial piping. Hinges are made for industrial doors and heavy structures.</span></p>
<p>We cater to both retail and bulk orders. Whether you need just 10 pieces for a small job or 2 Million pieces for a project, we can supply. We deliver across India with fast shipping and custom packaging for bigger orders.</p>
<p><span style="color:rgb(0,0,0);">Our products serve industries like construction, plumbing, HVAC, oil & gas, providing reliable and durable fasteners for various commercial and industrial projects.</span></p>
Since the inception, Ferry International is offering the huge range of the anchors, screws, nut and bolts, clamps, and pipes, wire mesh, etc. With the experience of more than six decades in the field of manufacturing industrial fasteners to the meet the demand of every industry, we are world class Nut Bolt manufacturers, suppliers, and exporters.
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