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Description
Thunderbolt Concrete Anchor Bolt - 16mm Hex HeadThunderbolt Screws Hex Head Concrete Screw 16mm The ideal fixing for heavy duty anchoring into brick, stone, wood concrete and concrete block. The Thunderbolt screw is an extremely versatile anchor screw that performs well in a wide variety of building materials including brick, stone, wood, concrete and concrete block. You no longer need the old fashioned method such as through bolts, shield, sleeve and drop in anchors. Thunderbolt screws make
Thunderbolt Screws
Hex Head Concrete Screw - 16mm Ø
The ideal fixing for heavy duty anchoring into brick, stone, wood concrete and concrete block.
The Thunderbolt screw is an extremely versatile anchor screw that performs well in a wide variety of building materials including brick, stone, wood, concrete and concrete block.
You no longer need the old fashioned method such as through bolts, shield, sleeve and drop-in anchors. Thunderbolt screws make anchoring a much more efficient process, greatly increasing the speed of installation.
Key Features
- High-Low parallel threads for ease of insertion and high pull-out values
- Removable & adjustable non-expansion through fixing
- Unique concave thread configuration
- Hex head to enable more secure and reliable clamping with increased torqueability
- 150mm are partially threaded
All steel, non-flammable fixing conforming to BS 7671 standard's 18th edition, which requires wiring systems to be supported by materials which are unlikely to prematurely collapse in the event of a fire.
Concrete Anchor Bolt
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 4
Size Up!
Size: 9-10 Women/7.5-8.5 Men, Color: Chocolate, Size: 9-10 Women/7.5-8.5 Men, Color: Chocolate
These are very comfortable! My only issue is that I'm a size 9, so I ordered the womens 9-10 and they are *almost* too small. My heel really wants to come out the back. I know the description says to size up, so you really should lol. They are also narrow, as I have wide feet! I will still wear them, just not if I have to walk too much
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Reviewed in the United States on February 26, 2026
★★★★★ 5
No more stubbed toes!
This is a very comfortable slip on shower sandal. The bowl design that makes it protect your toes and feet works like a champ! No more stubed toes !! They wore great to prevent that. And they have great traction in smooth wet surfaces. Even with soap on them.
Comfortable fit..
I would buy this product again. Thanks
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Comfy
Size: 6-7 Women/4-5 Men, Color: Chocolate
Great slides. I wore them all week on a vacation to the beach. On the beach, walking tours, comfy!!
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Reviewed in the United States on May 24, 2026
★★★★★ 3
Size up
Size: 7.5-8.5 Women/6-7 Men, Color: Black
I had another pair of a different style from the same seller that shrunk when left in the sun. That one wasn't available anymore, so I bought this one in the same size, and they are too small. They are comfy shoes but not true to size
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Perfect for after knee surgery
Size: 7.5-8.5 Women/6-7 Men, Color: Blush
I ordered these after having knee surgery and they’ve been a god send. I wear them around the house and they help so much with knee pain. They’re great quality and sized as expected.
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Reviewed in the United States on April 28, 2026