OKG Heavy Duty Security Ground Anchor, 9/16" (14mm) Thick Hardened Steel Swing Shackle - Ideal for Bicycle Anchor, Motorcycle Anchor, E-Bike Anchor, Generator Anchor Lock - Permanent Anchor Point

Used to secure my e-bike. It would take a tractor to pull this thing out. Tapping the ball bearings into the screw heads is the chef's kiss. Hilariously infuriating to remove. It, of course, is not immune to a battery powered angle grinder, but that dude would need commitment and balls made of harder steel than that shackle or the chain securing the bike to spend several minutes trying to get it free. I don't worry about my bike getting stolen, and that peace of mind is worth more than the price of this anchor.

Work great, secured my trailer on my driveway

Well, I do not know what t really say but it is a pain in the But getting it installed. It did not have the Drill bit like I thought I read. I call around and No one has it. 16mm Drill bit. Home trill for 30 minute online chat and so did AI they both failed and the Human gave me Grainger it was $60 bucks for one single bit that could very well wear out. They all say I have to have a Powerful Hammer Drill. The regular drill I have will burn up and or burn up the bit. Rebar they blame. Human gave me Walmart's and it was $10 or $12 and I order it and one from How NOT 2 HN2 for $15. I bout another Drill $175. And the two Bits for $27. And got the drill and registering the DeWalt 10 Amp drill they want a Date code and it can not be found where AI said to look. I found a 2024 10 05 like number they said to look for. It was 2025 40 IN on the shipping box. I am waiting for Bits that said were to arrive today. I searched where is it and it said the 29th till the 4th. Still can't get out and drill it. Concrete and Rebar, The anchors and bolt must be 16mm like drill to fit. I want it to Fit Snug in the concrete with the 4 Bolts and anchor and 4 round BB's you pound in o top of 4 Bolt so no one can turn the Allen Wrench. Once in the concrete there is a Plastic cover that hides the bolts that you can not unscrew until you find the way to get BB'S out of the Allen Slots. I also bought a Kryptonite 16 mm Forgetaboutit Chain that is unsawable, UnGrinderable. Found a guy on YouTube said he could get chain off. But. He went through 7? Went through 7 grinder disks. I still need a U-Lock 3 1/2 by 7 1/2 inch U-bolt to take with me. Cause Anchor Stay home. Can't do nothing till I get bits and I am waiting because of It getting it anchored to bring home new Tenere that will chain up at home in this High crime area I live in. Slums. I feel there is going to be More holdups and problems. Even the dealer impatient sent them to look for a Simple drill bit and said they spent 40 minute and could not find 16 MM. We did find 5/8 inch. Nope Would have to Pound anchor with hammer or Sledge hammer. They try 11/16. NOPE. to loose for security, Has to be what OKG said to use. a 16mm bit made to go through Concrete with Rebar and limited to 1/2 in Shank to chuck it in. They are not getting Nothing and I am not bringing it home until I got a secure anchoring system installed and ready for New Bike. Also gotta Comp[ insurance too before I leave With bike from Dealership. I can not believe how many time i do this type of things that seems to me. Should have all these details work out, I have lost it and screamed at people and got in their face and asked them. Why is this like I am the First person to come up and make them realize they got a problem, They ask me to leave and I feel my exploding and a Voice saying Attack his Throat. So am I a good reviewer or What? I'm sicovit

Easy to install, very durable. I use it for my boat trailer and ATVs

Very solid construction. I had to buy a hammer drill to drill the four holes in a concrete slab. To make the Allen screws more theft resistant I covered the top of each screw with JB Weld Metal Epoxy. This ground anchor is not going anywhere!

This is a near exact copy of an ABUS floor anchor I installed about 4 years ago. I recently had to remove that in order to move a refrigerator in my garage and believe me when I say you do not want to have to remove this anchor. I had to cut it apart with a grinder, a process that required about 45 minutes as there is no single point at which to cut the base. Rather, multiple cuts were required - a long, tedious, sweaty process. If a thief has access to a grinder, no doubt he will cut the chain or the vertical link on the OKG rather than remove the base from the concrete floor. One reviewer criticized the OKG because a thief could simply reverse the install by using an allen wrench to back out the bolts from the concrete. Well, the OKG comes with a set of small ball bearings that you drive into the top of the bolt head. Once installed, you are not removing the bolts with an allen wrench. Believe me, I tried. With proper tools, specifically a hammer drill, this is a straightforward installation. Without a hammer drill, I wouldn't attempt it. Better to hire someone to do the install for you.

These are good security anchors, the only thing I would change is making the cover out of a metal instead of plastic. I use these outside so over time I expect the sun to take its told on the rubber part and the plastic cover. Other than that they are a nice product.

Lock is.okay to use but this day thief they use power tools to cut it my been cut off but it is very good to secure stuff that not thief around 👍👍👍👍

Looks very sturdy once installed correctly