Security Chains and Cables: Picking the Right Link for the Threat
A security chain is the part people underestimate. A serious lock on a thin, hardware-store chain just moves the weak point down the line, and bolt cutters do not care how nice your padlock is. What you are really buying is link thickness and the hardened treatment that resists cutting, plus a length that reaches without leaving a big loose loop for leverage.
Think about what the chain wraps and how tight it can be pulled. A cable is lighter and easier to route through wheels or awkward gaps, but it gives up cut resistance compared to a hardened link chain. Neither is a vault; both are about making your item more work to take than the next one over.
Master Lock Looped End Cable 4 Foot (1.2M) Long X 3/8" (10mm) Diameter
From Master Lock, this is a security chain or cable.
It measures 3/8" in the dimension the feed calls out. Match it to the door or opening it serves and confirm the mounting suits your surface.
Master Lock Combination Cable Lock, 4 Dial Number, Set Your Own, 6' (1.8M) Long, 5/16" (8mm) Diameter
Master Lock offers this as a security chain or cable. This one is a combination that needs no key.
It measures 5/16" in the dimension the feed calls out. With no key to lose you also have no key to fall back on, so commit the code to memory before you rely on it.
Master Lock Looped End Cable 6 Foot (1.8M) Long X 3/8" (10mm) Diameter
This is Master Lock's take on a security chain or cable.
The listed size is 3/8". It does one job well; the main thing is sizing it to your opening.
Master Lock Integrated Cable Lock, Keyed Different, 6' (1.8M) Long, 3/8" (10mm) Diameter
The Master Lock entry here is a security chain or cable. This one is keyed different, so it carries its own key.
It measures 3/8" in the dimension the feed calls out. Keyed different means this carries its own key, which is secure but adds another key to the ring if you buy several.
Master Lock Combination Cable Lock, 4 Dial Number, Set Your Own, 5' (1.5M) Long, 3/8" (10mm) Diameter
Master Lock offers this as a security chain or cable. It comes a combination that needs no key.
The listed size is 3/8". With no key to lose you also have no key to fall back on, so commit the code to memory before you rely on it.
Master Lock Keyed Cable Lock 3 Foot (91cm) Long X 3/16" (5mm) Diameter With Integrated Laminated Steel Padlock
The Master Lock entry here is a security chain or cable.
It measures 3/16" in the dimension the feed calls out. Check the mounting and dimensions against what you have before ordering.
Choosing well
Pair the chain with a padlock whose shackle actually fits the end link, keep the run snug to the anchor, and you have a deterrent that holds up to a casual attempt. Sizing and snugness matter more than the brand on the tag.
At a glance: how these compare
| Product | Brand | Finish | Type | Key detail |
|---|---|---|---|---|
| Master Lock Looped End Cable 4 Foot (1.2M) Long X 3/8" (10mm) Diameter | Master Lock | See listing | security chain or cable | 3/8" |
| Master Lock Combination Cable Lock, 4 Dial Number, Set Your Own, 6' (1.8M) Long, 5/16" (8mm) Diameter | Master Lock | See listing | combination | 5/16" |
| Master Lock Looped End Cable 6 Foot (1.8M) Long X 3/8" (10mm) Diameter | Master Lock | See listing | security chain or cable | 3/8" |
| Master Lock Integrated Cable Lock, Keyed Different, 6' (1.8M) Long, 3/8" (10mm) Diameter | Master Lock | See listing | keyed different | 3/8" |
| Master Lock Combination Cable Lock, 4 Dial Number, Set Your Own, 5' (1.5M) Long, 3/8" (10mm) Diameter | Master Lock | See listing | combination | 3/8" |
| Master Lock Keyed Cable Lock 3 Foot (91cm) Long X 3/16" (5mm) Diameter With Integrated Laminated Steel Padlock | Master Lock | See listing | security chain or cable | 3/16" |
Finishes and details above come from the current product listings. No pricing is shown here because feed prices go stale fast; check the retailer for the latest.
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