| | Kamax-GB DuPont LP (Lapeer, MI) Cold headed products, bolts & screws | |
| | Lake Erie Screw Corp (Lakewood, OH) Cap screws | |
| | Material Systems Engineering (Danville, IN) Pneumatic conveying systems; filter receivers, bag dumps, cyclones & pressure screws | |
| | Mercury Thread Grinding Inc (Chesterfield, MI) Precision thread grinding, milling & chasing thread, orthopedic screws & taps | |
| | Mid States Screw Corp (Rockford, IL) Cold headed products, fasteners & screws | |
| | Mid-Continent Screw Products (Lincolnwood, IL) Cold headed fasteners, screws & packaging | |
| | Morrison Timing Screw Co (Glenwood, IL) Timing screws, packaging related equipment & components | |
| | New Castle Industries (New Castle, PA) Plastic injection molds, extrusion & injection screws | |
| | Nylok Fastener Corp (Lincolnwood, IL) Apply self locking material to screws, nuts, bolts & fasteners | |
| | Peerless Hardware Mfg Co (Columbia, PA) Fasteners, thumb screws, wing nuts, marine & general hardware, ferrous, nonferrous castings & forgings | |
| | PGM Products Inc (Warren, MI) Ball screws | |
| | Power Machining Inc (Franklin Park, IL) Machine shop: CNC, NC & precision machining, drilling, lathe & mill work; valves, nuts, screws & machinery parts | |
| | Precision Feedscrews Inc (New Castle, PA) Feed screws for plastic industries | |
| | Reliant Fastener (Rock Falls, IL) Bolts, screws & cold formed products | |
| | Rockford Fastener Inc (Rockford, IL) Manufactures metal fasteners & screws | |
