![](http://www.alamy.com/thumbs/6/648F7B95-39E2-4766-8F4C-2CCF352B0AB2/KRCEK6.jpg)
Hands of a workman tighten a bolt.
Size: 5575px × 3721px
Photo credit: © Patrizio Martorana / Alamy / Afripics
License: Royalty Free
Model Released: No
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