Hardened Chest
A metal hard block with 7,500 hit points.
Changes into
When its hit points run out it becomes Hardened Chest.
When it collapses
Falling, it leaves 
Scrap Metal Pile (75% of the time) where it lands.
Loot
Holds the Hardened Chest loot container: 8 × 9 slots, 432 possible items.
First Aid Bandage79%
Shotgun AP Slug (Ammo)63%
HiPower 9mm Ammo63%
HiPower 7.62mm Ammo63%
Sewing Kit44%
HiPower .44 Magnum Ammo39%
Chance of at least one per open at loot stage 50. Every item and stage.
Where to find (90 POIs)
7 Days Suites (tier 5), Area 7 (tier 5), Champions Coliseum (tier 5), Correa Rockworx (tier 5), Crack-a-Book HQ (tier 5), Dishong Tower (tier 5), Dr. Karen Higashi Residence (tier 5), Grover High (tier 5), Haven Hotel (tier 5), Higashi Pharmaceutical (tier 5), Hybrid Mining (tier 5), Minotaur Theater (tier 5), Navezgane Athletics Complex (tier 5), Navezgane Corrections (tier 5), Navezgane County Jail (tier 5), Navezgane General Hospital (tier 5), Ostrich Hotel (tier 5), Pop-N-Pills Factory (tier 5), Red Mesa Compound (tier 5), Shamway Factory (tier 5), Shotgun Messiah Factory (tier 5), The Last Sunset Nursing Home (tier 5), Two Bit Tower (tier 5), U.S. Army Post #7 (tier 5), Vanity Tower (tier 5), Aranea Caverns (tier 4), Beanthere Coffee Company (tier 4), Butcher Pete's (tier 4), Calm Inn (tier 4), Camp Hollow Point (tier 4), ChemTech Distribution Center (tier 4), Close Encounters Gun Range (tier 4), Coleman's Drive-In (tier 4), Diamond's Mens Club (tier 4), Don Vittorio Spagetto Residence (tier 4), Doominium Tower (tier 4), Downtown Marketplace (tier 4), Dumpsy Clinic (tier 4), Ecotrash Recycling Center (tier 4), Favales Academy (tier 4) and 50 more.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.
Variants (4)
Blocks of the game with the same name (colours, open or closed, secure or not, the player's own copy).