I thought the building looked familiar, Winston. I used to walk/cycle past it every day on my way to work in Bordesley Green Road in the 40/50's. Over the road from the 'Screw' was one of the Mulliners factories and a small car repair yard with a petrol pump at it's entrance.
Just up from the 'Screw', on the dog-leg corner of Cherrywood Road, was a café from where we used to get our morning break bacon, egg and tomato sandwiches. Further down on the Mulliners side, there was an illegal bookies at the side of the Why Not Inn and the chap who ran it was often nabbed. But it never stopped him. There were plenty of factories round there - including the GPO - so business was always brisk!
Back across the road and on the corner of Burbidge Road, was Motor Components, part of the Clifford Group. Several of my relatives worked there (and at Clifford Covering, further down) from pre-war through to the 70's. Most of their business was in car and aero valve manufacture, the latter being mainly for de Haviland. Their canteen was situated opposite the factory in Cherrywood Road and the children's Christmas parties were held there.
Cherrywood Road had plenty of shops interspersed between the houses - general stores, a cooked meats shop, a couple of chippies, ladies' hairdressers, drapers, a small church and, near to Colmore Depot, even a doctors surgery from where Dr Bose and Dr Sankiara(?) practiced. A self-sufficient community in those days.