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UK IRL INTL
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Locking Nuts

When you assemble modular access structures you require secure fastenings to maintain stability.

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Stainless steel grubscrews from Altrad Generation upgrade the corrosion resistance of your Q Clamp fittings by replacing the standard zinc-plated screws with grade 316 or equivalent stainless steel. In outdoor, coastal, and high-humidity environments, stainless grubscrews prevent seizing and ensure your fittings remain removable throughout their service life.

Available from Altrad Generation alongside the full Q Clamp range, stainless steel grubscrews are a straightforward upgrade that protects your fitting investment in demanding outdoor environments.

Why Upgrade to Stainless Steel Grubscrews

  • Superior corrosion resistance compared to standard zinc-plated grubscrews

  • Prevents screw seizing in outdoor, coastal, and high-humidity environments

  • Keeps fittings removable and reusable throughout the installation service life

  • Compatible with the full Size 4 (48.3mm) Q Clamp range

  • Use with the Allen Key Tool for correct installation and removal

  • Available from Altrad Generation UK branches for hire and sale

Q Clamp Maintenance

Inspect Q Clamp grubscrews regularly on outdoor installations. Replace any screw showing heavy corrosion before it seizes in the socket. Where installations will be in place for extended periods in outdoor or coastal environments, specify stainless steel grubscrews at installation to avoid costly fitting replacement. View the full Q Clamp range for all fitting types and accessories.

Frequently Asked Questions

Q. What are stainless steel grubscrews used for in Q Clamps?
A. Stainless steel grubscrews replace the standard zinc-plated grubscrews supplied with Q Clamps. They provide significantly better corrosion resistance in outdoor, coastal, and high-humidity environments where standard zinc-plated screws corrode and seize inside the fitting socket.

Q. What is the advantage of stainless steel grubscrews over standard ones?
A. Stainless steel offers far superior corrosion resistance compared to zinc-plated steel. In outdoor and coastal environments, standard zinc screws corrode over time, making them difficult to remove and potentially leaving fittings permanently locked. Stainless steel screws remain removable throughout the fitting's service life.

Q. What Q Clamp sizes are the stainless steel grubscrews compatible with?
A. Altrad Generation stainless steel grubscrews are compatible with the full range of Size 4 (48.3mm) Q Clamps. Contact your local branch to confirm compatibility with specific Q Clamp models.

Q. How do I install stainless steel grubscrews in Q Clamps?
A. Remove the standard zinc grubscrew using the correct size Allen key. Insert the stainless steel grubscrew and tighten to the manufacturer specification using the Allen Key Tool. Do not overtighten, as this risks stripping the socket or deforming the tube.

Q. Are stainless steel grubscrews available separately from Altrad Generation?
A. Yes. Altrad Generation stocks stainless steel grubscrews for the Q Clamp range. Contact your local branch to confirm pack sizes and current stock.

Get in Touch with Us

Contact your local Altrad Generation branch to discuss stainless steel grubscrews and Q Clamp accessories, or find your nearest branch using our branch locator.

Product Weight (kg) Width (mm) Length (mm) Height (mm)
Locking Nuts 0.01 0 0 0

Goods can be picked up from the nearest convenient location or delivered by our fleet. Prices are on application and tiered based on the distance and order volume between the branch the goods are transported from and the delivery site:

1 - 10 miles

11 - 25 miles

26 - 40 miles

40 miles+

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Q Clamp 150-4

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Q Clamp 150-4

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Q Clamp 147-4

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Q Clamp 147-4

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