Compel Groupgroup

Concrete Expansion Bolts | External Hex M6-M16 | 304 Stainless Steel Sleeve Anchors

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£22.99inc VAT

The NINDEJIN External Hex Expansion Bolt is engineered for superior, permanent fastening in solid base materials like concrete. Crafted from corrosion-resistant 304 stainless steel, it offers exceptio...

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Questions about this product

How do I install these expansion bolts in concrete?
Drill a hole matching the anchor diameter, so an M10 bolt needs a 10 mm hole. Insert the anchor, then tighten the external hex head with a wrench or socket. As you tighten, the sleeve expands against the hole walls for a firm, vibration-resistant hold.
Will these rust if used outdoors?
They are made from 304 stainless steel, which resists corrosion well in outdoor and damp settings. That makes them a good fit for railings, barriers, and brackets exposed to weather. They also stand up to general atmospheric and mild chemical exposure.
What sizes are available and what can they hold?
They come in M6, M8, M10, M12, M14, and M16 to match different load needs and hole sizes. Bigger diameters carry heavier structural loads. They are rated for permanent, heavy-duty fastening into concrete, masonry, and stone.

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