Ohio based precision machine shop R.W. Screw Products, Inc., was founded in 1948 by E.Ray Woolley. The company has grown to a ... ttain national recognition as a manufacturer of precision screw machine parts. Under the leadership of James F. Woolley, son of the founder, R.W. Screw Products has grown into a modern facility incorporating over 188,000 square feet of manufacturing and administrative area. read more