How Is This Chain Different From The 3012 Chain?

For starters, the 3012 chain is no longer available. It is actually a traction chain that was not originally designed for security with a plain finish that was vulnerable to surface rust. The 3012 chain is also bigger at 12mm in diameter. While this chain is hardened 10% deep, the 3012 chain is hardened 6% deep. From a cosmetic perspective, this chain is silver while the 3012 chain is black.

What About The Lock?

This is a true, high-security Viro padlock that was hand selected to work with this 10mm chain. It has a fully armored brass body with tempered, copper, nickel, case-hardened and chrome plated steel armor. It also has a hardened bolt--this is a true security lock. Its size is just right, because it's beefy enough to look substantial and intimidating yet small enough to remain portable and easy to handle. The lock itself weighs just under 2 lbs.

Keyed Different vs. Keyed Alike
If you plan to buy just one kit, or if you want multiple kits where each lock takes a different key, then choose locks that are "Keyed Different". If you want to buy multiple kits (perhaps for use at one facility) and you want all locks to take the same key, then choose "Keyed Alike".