Drop chances

ItemStage 10Stage 50Stage 100Avg count
Cloth Fragment20%20%20%0.91
Brass20%20%20%11
Scrap Polymers20%20%20%2.5
Wood20%20%20%3.96
Iron20%20%20%2.98
Forged Iron5.0%5.0%5.0%0.5
Repair Kit4.9%4.9%5.0%0.05
Forged Steel4.9%4.9%4.9%0.36
Sewing Kit4.8%4.8%4.9%0.05
Oil4.5%4.5%4.5%0.16
Glue4.4%4.4%4.3%0.13
Short Iron Pipe4.4%4.4%4.4%0.33
Electrical Parts4.4%4.4%4.4%0.09
Mechanical Parts4.4%4.4%4.2%0.13
Duct Tape4.4%4.4%4.3%0.11
Nails4.4%4.4%4.4%0.65
Spring4.3%4.3%4.3%0.11
Forge Ahead4.0%4.0%3.9%0.04
Steel Tool Parts–2.3%2.4%0.06
Motor Tool Parts–2.3%2.6%0.06
Iron Sledgehammer–0.95%0.19%0.01
modVehicleStorage–0.93%0.66%0.01
Claw Hammer–0.91%0.23%0.01
modVehicleOffRoadHeadlights–0.91%0.69%0.01
Iron Shovel–0.90%0.20%0.01
Wrench–0.89%0.19%0.01
modVehicleFuelSaver–0.89%0.72%0.01
Steel Sledgehammer Parts–0.86%0.84%0.02
Iron Fireaxe–0.83%0.19%0.01
Iron Pickaxe–0.82%0.18%0.01
Minibike Handlebars–0.53%0.44%0.01
Engine–0.52%0.63%0.01
Lead Car Battery–0.52%0.65%0.01
Wheel1.8%0.51%0.62%0.01
Minibike Chassis–0.48%0.41%0
Bicycle Handlebars1.8%––0
Stone Axe5.3%––0
Stone Shovel5.4%––0
Bicycle Chassis1.8%––0
Steel Sledgehammer––0.30%0
Steel Shovel––0.78%0
Steel Pickaxe––0.72%0
Motorcycle Chassis––0.21%0
Steel Axe––0.84%0
modVehicleReserveFuelTank––0.26%0
Ratchet––0.84%0
Motorcycle Handlebars––0.16%0

Average count per open at loot stage 50. From 40,000 simulated opens per stage; perks that raise loot are not counted.