This listing is for TWO (2) hidden shackle locks keyed alike (same key unlocks both) and 4 keys. The Master Lock No. 6271 ProSeries Hidden Shackle Padlock includes a 2-7/8″ (73mm) wide reinforced die cast body that withstands forcible attacks and a 3/8″ (9mm) diameter boron alloy shackle. The Lock body conceals the shackle, defeating attempts to pry and cut. Ideal for transportation, vending & industrial applications, the high security, rekeyable 6-pin cylinder with spool pins is virtually not possible to pick out.
“Bolt Cutter Tough” fully shielded 3/8 (9mm) diameter boron alloy hardened steel shackle offers not possible to chop and pry resistance features.
Hardened diecast steel body is robust, durable and resists corrosion. 6-pin cylinder for max pick out resistance.
Removable cylinder for replacement or repinning.
Opening dimensions where the hidden shackle is positioned: 1-11/16″ wide x 9/16″ high x 11/16″ depth (to the middle of the pin)
See image for reference – Shackle Dimensions – A: 3/8in (10mm) B: 19/32in (15mm) C: 1-23/32in (44mm)