Sign: Open, Wall Mount Chain
CREATIVE: Requires no power and can be turned on/off when designing prefabs.
Harvest drops
Scrap Polymers× 2 @ 80%
Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.
Salvage drops
Electrical Parts× 2 @ 70%
Extra parts when salvaged with a wrench, ratchet or impact driver.
Drops when destroyed
Iron× 1-5
When it collapses
Falling, it leaves 
Scrap Metal Pile (75% of the time) where it lands.
Where to find (26 POIs)
Minotaur Theater (tier 5), Two Bit Tower (tier 5), Judy Witch (tier 4), Elzner's Emporium (tier 3), Happy Sleep Motel (tier 3), Jim & Tim's Bullets and Booze (tier 3), Meat You Here Butchery (tier 3), Pass-N-Gas Truck Plaza (tier 3), The Rejekts Gang Outpost (tier 3), Animal Hospital (tier 2), The Molar & Moral Building (tier 2), The Wagon Diner (tier 2), Boe's Market (tier 1), Dick's Diner (tier 1), Prowlin Petes (tier 1), Swiggin Serum (tier 1), Auto Wash, Bloomington Square, Bruno's Boulevard, Construction Warehouse, Junkin, Kruz-Thru Liquors, LUX Restaurant, Rhythm & Brews District, Trader Bob, Trader Jen.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.