SELFLOCK SCREW PRODUCTS COMPANY, INC.

Hardware Manufacturing

Establishments in this category are primarly engaged in manufacturing metal hardware, such as metal hinges, metal handles, keys, and locks (except coin- or card-operated, time locks).

Machine Shops

This category includes establishments known as machine shops primarily engaged in machining metal and plastic parts and parts of other composite materials on a job or order basis. Generally machine shop jobs are low volume using machine tools, such as lathes (including computer numerically controlled); automatic screw machines; and machines for boring, grinding, milling, and additive manufacturing.

Precision Turned Product Manufacturing

This includes establishments known as precision turned manufacturers primarily engaged in machining precision products of all materials on a job or order basis. Generally precision turned product jobs are large volume using machines, such as automatic screw machines, rotary transfer machines, computer numerically controlled (CNC) lathes, or turning centers.

Bolt, Nut, Screw, Rivet, and Washer Manufacturing

This includes establishments primarily engaged in manufacturing metal bolts, nuts, screws, rivets, washers, and other industrial fasteners using machines, such as headers, threaders, and nut forming machines.

Fluid Power Valve and Hose Fitting Manufacturing

This includes establishments primarily engaged in manufacturing fluid power valves and hose fittings.

Illustrative Examples:

Fluid power aircraft subassemblies manufacturing
Hose assemblies for fluid power systems manufacturing
Hydraulic and pneumatic hose and tube fittings manufacturing
Hydraulic and pneumatic valves manufacturing

Other Metal Valve and Pipe Fitting Manufacturing

This includes establishments primarily engaged in manufacturing metal valves (except industrial valves, fluid power valves, fluid power hose fittings, and plumbing fixture fittings and trim).

Illustrative Examples:

Aerosol valves manufacturing
Firefighting nozzles manufacturing
Lawn hose nozzles manufacturing
Lawn sprinklers manufacturing
Water traps manufacturing
Metal hose couplings (except fluid power) manufacturing
Metal pipe flanges and flange unions manufacturing
Plumbing and heating inline valves (e.g., check, cutoff, stop) manufacturing

Electronic Connector Manufacturing

This includes establishments primarily engaged in manufacturing electronic connectors, such as coaxial, cylindrical, rack and panel, pin and sleeve, printed circuit, and fiber optic.

Other Electronic Component Manufacturing

This includes establishments primarily engaged in manufacturing electronic components (except bare printed circuit boards; semiconductors and related devices; electronic capacitors; electronic resistors; coils, transformers, and other inductors; connectors; and loaded printed circuit boards).

Illustrative Examples:

Crystals and crystal assemblies, electronic, manufacturing
Electron tubes manufacturing
LCD (liquid crystal display) unit screens manufacturing
Microwave components manufacturing
Piezoelectric devices manufacturing
Printed circuit laminates manufacturing
Switches for electronic applications manufacturing
Transducers (except pressure) manufacturing

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals

This includes establishments primarily engaged in manufacturing instruments for measuring and testing the characteristics of electricity and electrical signals. Examples of products made by these establishments are circuit and continuity testers, voltmeters, ohm meters, wattmeters, multimeters, and semiconductor test equipment.

Fiber Optic Cable Manufacturing

This includes establishments primarily engaged in manufacturing insulated fiber optic cable from purchased fiber optic strand.

Current-Carrying Wiring Device Manufacturing

This includes establishments primarily engaged in manufacturing current-carrying wiring devices.

Illustrative Examples:

Bus bars, electrical conductors (except switchgear-type), manufacturing
GFCI (ground fault circuit interrupters) manufacturing
Lamp holders manufacturing
Lightning arrestors and coils manufacturing
Receptacles (i.e., outlets), electrical, manufacturing
Switches for electrical wiring (e.g., pressure, pushbutton, snap, tumbler) manufacturing

Noncurrent-Carrying Wiring Device Manufacturing

This includes establishments primarily engaged in manufacturing noncurrent-carrying wiring devices.

Illustrative Examples:

Boxes, electrical wiring (e.g., junction, outlet, switch), manufacturing
Conduits and fittings, electrical, manufacturing
Face plates (i.e., outlet or switch covers) manufacturing
Transmission pole and line hardware manufacturing

All Other Miscellaneous Electrical Equipment and Component Manufacturing

This includes establishments primarily engaged in manufacturing industrial and commercial electric apparatus and other equipment (except lighting equipment, household appliances, transformers, motors, generators, switchgear, relays, industrial controls, batteries, communication and energy wire and cable, wiring devices, and carbon and graphite products). Examples of products made by these establishments are power converters (i.e., AC to DC and DC to AC), power supplies, surge suppressors, and similar equipment for industrial-type and consumer-type equipment.

Illustrative Examples:

Appliance cords made from purchased insulated wire
Battery chargers, solid-state, manufacturing
Door opening and closing devices, electrical, manufacturing
Electric bells manufacturing
Extension cords made from purchased insulated wire
Inverters manufacturing
Surge suppressers manufacturing
Uninterruptible power supplies (UPS) manufacturing

Other Electronic Parts and Equipment Merchant Wholesalers

Establishments in this category are primarly engaged in the merchant wholesale distribution of electronic parts and equipment (except electrical apparatus and equipment, wiring supplies, and construction materials; electrical and electronic appliances; and television sets and radios).

Illustrative Examples:

Blank compact discs (CDs) merchant wholesalers
Blank digital video discs (DVDs) merchant wholesalers
Broadcasting equipment merchant wholesalers
Cellular telephones merchant wholesalers
Communications equipment merchant wholesalers
Modems and routers merchant wholesalers
Radar equipment merchant wholesalers
Teleconferencing equipment merchant wholesalers
Unloaded computer boards merchant wholesalers