bolt head turned over to show sheared threading after stress failure
Keywords
stress,
bankruptcy,
bolt,
shear,
tighten,
stressed,
over,
twirling,
screw,
threaded,
fastener,
support,
tear,
fracture,
repetitive,
expectancy,
life,
design,
defect,
mechanical,
torque,
twisted,
risk,
iron,
safety,
substitution,
cheap,
maintenance,
fail,
snap,
faulty,
metalwork,
center,
drilling,
hole,
nut,
rotate,
industry,
metallic,
industrial,
steel,
metal,
frustrated,
crisis,
frustration,
sad,
sleepy