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🔧 Secure your build with zero stress and total confidence!
The Genuine Thunderbolt M8 x 75 Concrete Anchor Screw features a patented concave thread design that enables fast, low-torque installation without expansion stress. Compatible with a wide range of materials including concrete, brick, and wood, it offers fully threaded fixing for superior pull-out resistance. Its hexagonal head allows easy adjustment or removal, making it the go-to medium-duty anchor for professional-grade, stress-free construction.
| Asin | B01720TNQC |
| Best Sellers Rank | 48,369 in DIY & Tools (See Top 100 in DIY & Tools) 730 in Screws (DIY & Tools) |
| Brand Name | Thunderbolt |
| Compatible Groove Diameter | 2E+1 Millimeters |
| Customer Reviews | 4.5 4.5 out of 5 stars (766) 4.5 out of 5 stars |
| Drive System | External Hex |
| Exterior Finish | Plastic |
| Fastener Size | M8 x 75 |
| Fastener Type | Hexagon Anchor Bolt |
| Finish Types | plastic |
| Grade Rating | Class 10.9 |
| Head Type | Hex |
| Item Diameter | 8 Millimetres |
| Item Hardness | Grade 10.9 |
| Item Weight | 454 g |
| Manufacturer | GENUINE THUNDERBOLT® |
| Manufacturer Grade | Class 10.9 |
| Material Type | Plastic |
| Maximum Shear Strength | [10, 70] MPa |
| Metal | Stainless Steel |
| Number Of Packs | 1 |
| Number Of Pieces | 1 |
| Outside Diameter | 8 Millimetres |
| Screw Head Style | Hex |
| Screw Point Style | hollow |
| Set Screw Thread Type | M (Manufacturer |
| Size | M8 x 75 |
| Thread Class | Class 6 |
| Thread Coverage | Fully Threaded |
| Thread Size | M8 |
| Thread Style | Standard |
| Thread Type | UNC |
| Unit Count | 8.0 count |
User
Rock solid and easy to use
These are great I used them to put a basketball hoop on the side of the house for my son.First of all they are an absolute doddle to use,just drill an 8 mm hole give them a little tap with a hammer and tighten them with a spanner.Secondly,they are solid,these will never fall out they have actually screwed into the brick and I'm pretty confident the basketball hoop could take my full weight.
User
Do the Job
Product seems fine and they seem to be doing the job perfectly.Used them to anchor posts onto slabs and concrete floor.Perfect for now.
User
Good quality
Good quality good grip fast delivery
User
Thunderbolt screw fixings
Did the job, arrived quickly, reasonable price
User
Did a perfect job
Not having used these bolts before, I did not have much confidence that they would work; but they were perfect for the job of bolting down the supports for a gate post. Drilled into stone with an 8mm drill bit and the bolts went straight in and tightened to full strength. Would use them again if needed.
User
Excellent Bolts
These bolts are brilliant, so easy to use. Just drill the hole and screw in the bolt. I’ve used them for securing fencing post brackets to concrete
User
They work but ...
These really do work but not that great on solid concrete, I felt they would snap once they started to bite so I went for a bigger drill bit but it was still tough going.
User
OMG, these do exactly what they're intended to do and then some :)
I used these to screw a metal fence support bracket to slabs. As i was bolting this down, i soon realised my drill hole wasn't quite long enough when the concrete slab started to lift! These are sooo strong and easy to use.
User
Bien
Fixation abri bois
Trustpilot
1 month ago
2 weeks ago