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OKG Ultra Security Chain - 4ft x 1/2in (12mm) Thick Hardened Alloy Steel Cut Proof Chain - Anti-Theft Heavy Duty Chain for Motorcycles, E-Cargo Bikes, Trailers, Gate Fences, and Garage Security

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$68.85

$ 32 .99 $32.99

In Stock
  • ✓ PREMIUM QUALITY SECURITY CHAIN: OKG heavy duty uncuttable chain made of 3T hardened alloy steel links, surface hardness 63.3 HRC (HV 780), compliant with EN ISO 9227 and ISO 2639 standard, galvanized for anti rust and corrosion, wrapped by nylon sleeve and includes a chain bag to store and carry. Professional users select our OKG chain to secure millions of valuable home equipment pieces and property every year.
  • ✓ SPECIAL O-RING NOOSE CHAIN DESIGN: The OKG cinch ring chain is different from the square and round chains. It is designed with an O-ring at the end, and the inner diameter of the O-ring is 50mm. It can be stretched flexibly to maximize individual chain length requirements. The excellent noose chain design is highly recommended for use with padlocks, U-locks, disc locks, the best choice for securing your personal and industrial property.
  • ✓ HIGH-QUALITY MATERIALS AND WELDING: OKG chain is triple hardened and heats treated. The chain is manganese steel with excellent welding technology and hexagonal link design, which is harder than normal alloy chains. Resistant to hand tool attacks such as bolt cutters, saws, hammers, and chisels. For a thief, this is a monster. The surface is electroplated with a special zinc coating, effectively preventing corrosion and rust, and is suitable for various outdoor harsh environments.
  • ✓ MULTIPLE USES TO PROTECT PROPERTY: Industrial and consumer users use OKG security heavy duty alloy chain, anti- angle grinder, arge volume sales exhibit prove that it can protect your property well. OKG premium anti theft chain can be used as a motorcycle chain lock, bike chain locks, and Used with matching locks. it can be used in containers, scooters, ATVs, generators, fence gates, golf carts, and more
  • OKG offers a lifetime warranty if its heavy-duty chain is severed by bolt cutters or hand tools. Only OKG brand premium reinforced security chains and lock kits provide the quality features needed to protect your valuable machinery, motorbike, or facility. For effective protection, choose OKG over other brands.



Product Description

OKG Cinch Chain Main

OKG SECURITY CHAINS

ENDEAVORING THE FUTURE OF SECURITY


NVC12000H Series

security scale 9
OKG CHAIN SECURITY SCALE

OKG Security Rate 9/10

There is no "1OO% UNCUTTABLE CHAIN" in the world, choose a security chain that suits your security needs.

OKG cut proof chain is ideal for bikes, mopeds, motorcycles, gates and fences, barbecues and lawnmowers, toolboxes and ladders, generators, hand trucks, scaffolding, barbecues, sports equipment, etc.

  • PREMIUM SECURITY CHAIN
  • NOOSE SECURITY CHAIN DESIGN
  • SURFACE GALVANIZED ANTI RUST

OKG PREMIUM SECURITY CHAIN

Why Choose the OKG Heavy Duty Anti Theft Security Chain?

Have you been looking for a security chain that is a virtually uncuttable chain?

Looking all over the online store for a chain that's as close to an unbreakable chain as you can get without breaking?

How about a chain and lock set you can rely on to protect your bike, motorcycle, generator, electric scooter or anything that can be chained down? HERE IT IS.

  • Chain Color : BLACK / GOLD (Galvanized)
  • Chain Thick : 1⁄2 inch / 12 mm (Hexagonal)
  • Cutting strength: 85kN / 19.1kipf
  • Tensile strength : 90kN / 20.2kipf
  • Torque strength : 550nm / 406lbf.ft
  • Chain Style: Noose Security Chain
  • Package Included: 1 x Chain Link - 1 x Chain Bag
  • Application Method: Combo with Disk Lock and Padlocks etc. (Note: Best with OKG Small U LOCK - 18mm U Shackle)

OKG High Security Chain Features

Noose Security Chain

CINCH RING NOOSE DESIGN

NOOSE LINK for effective lock-ups design extends the chain FLEXIBILITY that enables user to connect his/her vehicle to another vehicle or to an object which is connected with "the fixed world” (such as anchorage element, tree, fence, lamppost).

OKG Chain Sleeve

HOOK-N-LOOP SLEEVE

Durable, weather-resistant, highly flexible embroidered sleeve with hook-n-loop fastener allows compact coiling and protects bike, motorbike surface.

OKG Hexagonal Security Chain

RESISTANT TO NUMEROUS CUT TOOLS ATTACK

12mm SIX-SIDED chain links made of triple heat-treated boron MANGANESE ANTI-CORROSION STEEL for extreme strength, hardened throughout the entire thickness, rather than simply having a tough inner core or hardened outer-coating. Narrower inner width of individual links prevents bolt cutters, bolt croppers and leverage attacks.

OKG 10KS 10FT CHAIN BAG-1

COME WITH CHAIN BAG

Includes a carrying bag for easy storage and transport. GREEN ZINC plating prevents rust and corrosion and is ideal for indoor/outdoor.

Security lock chains from OKG are ideal to secure high-value items

OKG brand anti-theft chain is not easy to open with bottle jacks or lever tools, and it is also difficult to cut with electric or hand tools. So, the negative reward for you enjoying huge security gains is: they are very heavy!!! Therefore, you must find the best balance between weight and safety before buying.

OKG MOTORCYCLE LOCK CHAIN uses the noose chain design to provide more effective usage length. You don’t need to worry about the chain length when you select security chain because it can be used with most high security padlocks.

OKG Heavy Duty Security chain is made of triple heat-treated boron SPECIAL ALLOY STEEL with a special anti-corrosion coating which makes them ideal for outside use. The links are not round like on common chains, but are hexagonal shaped which is a lot more effective against attacks with tools. This chain also features a nylon chain sleeve to prevent paint work and chrome from scratches and damage.

Why Choose the OKG Heavy Duty Hardened Alloy Steel Chain?

OKG Tools

END INSIDE DIMENTIONS

Cinch Ring noose and chain links
  • Noose DIM. (D): 1.96“ / 50mm
  • Link DIM. (H x W): 1.96 x 0.78“ / 50 x 20mm
SUITABLE PADLOCKS, DISK LOCKS, U LOCKS

Choosing a suitable padlock, U-lock is easy if you follow some guidelines. It is always worth considering the shackle clearance and maximum security you can get with your padlocks, U-locks or anchors. You need a lock with enough shackle clearance to house the thickness of the chain's link.

COMPLIANT EN ISO 9227 AND 2639

Corrosion and hardened test

Continuous salt spray test for 168 hours, no corrosion and rust on the surface of the anti theft chain. Security chain heat treatment carburizing and hardening process, refer to EN ISO 2639 standard, surface hardness 63.3 HRC (HV 780), core hardness 49.1 HRC (HV 500), surface carburizing depth 0.2~0.5mm.

ART 4 STAR TEST SPECIFICATION

In order to ensure the quality and safety of OKG lock chain products, our OKG products have passed the Corrosion test, Dust test, Frost Test, Cutting Test, Hardness, and other combined tests. Resistant to all kinds of hand tools attacked by thieves, such as bolt cutters, saws, hammers, chisels, pistol drills, electric angle grinders, crowbars, etc.

CAUTION:

OKG Brands ultra security case hardened chain and lock kits have all of the high performance features and materials required to keep your valuable machinery or properties.

When you choose a high-quality professional heavy-duty safety chain, first it must go through a thorough test of strict loads - for example, attack test, corrosion test, dust test, frost test, tensile strength test, torque strength test, cutting test, hardness test. Secondly, the smoothness of the chain welding joint, the consistency of the size of the inner diameter of the chain, the surface plating process, etc. Finally, whether it has been certified by a professional, authoritative testing organization, it is recommended that you make a comprehensive and detailed comparison.

OKG specializes in the production of bike locks and security chain accessories. It has a group of professional and advanced production equipment and technical personnel who can provide customers with high-quality security products at reasonable prices.


Let’s sacrifice bob
Reviewed in the United States on August 23, 2024
I have this on my carport chaining my bike down and it’s heavy duty and weighs a decent amount have to had any issues other then I wish it was a little longer but it works great easy to use and fits perfectly worth the money for me
Von
Reviewed in the United States on August 2, 2024
10ft and just as strong as Kryptonite chains...
Jas Minner
Reviewed in the United States on July 19, 2024
I use this with the ground mount and the lock from the same company. May not be an alarm, but makes me feel insanely safe.
JRoman
Reviewed in the United States on December 12, 2024
Although this chain appears similar to other well-known brands on the market and the description indicates the "Sold Secure Gold" approval in 2020 for bicycles, I have confirmed with a Sold Secure representative that OKG has not kept up with the required annual renewals to maintain their products' security ratings. This makes me wonder whether the theft-deterrence level is still the same as four years ago, or has the material and/or manufacturing quality cheapened since then.
Bruce W. Bacon
Reviewed in the United States on November 3, 2024
Haven't used it yet, but this is one very stout chunk of chain.
T C
Reviewed in the United States on October 7, 2024
This chain lock is very very heavy. It works for me because I have an ebike + rear rack & milk crate so I can just throw it in there. But I would not want to use this for any other bike, even for an ebike without carrying capacity. It's very intimidating, thick, and bulky. Could still be angle grinded so best to pair with a different chain lock or another U-lock.This chain would be best secured with a small U-lock or closed shackle lock. Do your math. Did not fit in my Squire CP50 so had to return that.
J. Clute
Reviewed in the United States on October 21, 2024
I use this chain mostly to secure bicycles to a car hitch rack when travelling and parking... (or when the bikes are parked off the rack). While it's not been tested by an attempted theft and virtually no product is a sure bet against an electric cutoff tool (ex. with enough time and dexterity... one could cut through my hitch!)... this when attached with a security lock to my frame mounted hitch seems a quite strong theft deterrent!
Trans-System
Reviewed in the United States on October 12, 2024
QUALITY OF CHAIN IS GOOD. MY ONLY PROBLEM IS THAT AMAZON SAYING THEY GAVE IT TO A JOE AND THE BUILDING NEXT DOOR WHERE IT WAS DELIVERED IS A CLOSED BUILDING
Ghislain Bourassa
Reviewed in Canada on November 29, 2023
Solid heavy chain. I use it to lock my Ebike at home.
Darth Bubbles
Reviewed in Canada on November 19, 2023
Excellent for the home base to keep my bike safe.Pretty heavy for travel unless you have a centre box.
Crazy Craze
Reviewed in Canada on May 24, 2021
This is a little less intense than the previous OKG bike chain I got but is still quite a beasts. I like to joke that they will have a harder time sawing through the bike post that trying to get through this chain... but in all seriousness, for most fences, that is probably true. This chain is incredibly heavy, strong and is definitely a big detergent to your average thief.I'm very impressed with it and like that it is sheathed as well. It looks clean and does a better job than bare metal at keeping this looking nice and neat over time
AllGoodNamesRGone
Reviewed in Canada on March 22, 2021
So ive owned quite a few security chains over the years from kryptonite forgetaboutit chains to pegaw security chains and this is in the top tier in terms of quality and value. This security chain has all the features, boron hardened steel with manganese coating(anti rust) and includes the typical soft sleeve to protect the paint on your toy. While i dont think the sleeve is typical kevlar which cloggs up cutting disks, it does offer a good amount of effort to remove since most thieves wouldnt try to cut it off before trying to cut it with a cutoff tool.The links themselves are hexagon shape, not square or circle and this gives the chain a larger surface area to deal with the forces of bolt cutters. While any chain is not impenetrable it will however give them a hard time and wont be able to cut it unless they carry a 36 inch set of bolt cutters around with them(highly unlikely). A traditional set of bolt cutters has zero chance against this chain.Overall its a great security chain, high quality and super strong. As with anything, you can never stop a dedicated thief so everything is merely a deterrent and its your job to make it as hard as possible for someone. Its all you can do.Anyone curious, they make the chains short because when your toy is locked up against something tight, it makes it harder for a thief to access it with a big set of tools since your toy is practically leaning against the wall/pole ect.
SuperE
Reviewed in Canada on April 8, 2021
I would never call a bike chain "unbreakable", but this one is very close to that description. It would take an incredible, obscene amount of effort to cut through these, which means that the lock you decide to pair this up with better be as strong!The chain itself isn't rounded, but instead a hexagonal shape, which is ideal if you want to prevent bolt-cutters from getting to them easily.Around the chain is a fabric sleeve, which is great for protecting the paint on your ride. The cover is listed as Nylon and it can be removed for cleaning.The chain is thick - around the thickness of a finger - and it's got some weight to it. This may not be a problem if you have a cargo basket or paniers on your ride, but if you only carry a backpack then you will need to use caution as this much weight will shift your center of gravity.The length works great for my electric scooter, but think this would work just fine with most bikes too.Overall, the confidence boost when using this chain to lock up my ride is 10/10. I no longer worry about the chain being broken, but now I have to find a lock to match this level of security!
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