Quality Screw Machine Products, Inc. Produces a range of high-volume components and parts; from simple shafts and spacers to threaded couplings, connectors, and other fittings.

Quanex Corporation Manufacturing group producing steel bars and aluminum impact extrusions for automotive industry, as well as siding, roofing, and doors and windows for building trade. Site provides detailed information regarding capabilities.

Quick Draw & Machining, Inc. "Custom machining for aerospace, medical, and military applications.

Quickparts.com Allows users to upload their CAD data and receive online quotes. Offers a variety of services including, rapid prototypes, cast urethanes, injection molding, and cast metals.

RAF Electronic Hardware Manufacturer of screw machine parts.

RC Sales and Manufacturing. Plastic fabricators and makers of custom machined plastic parts and products in Illinois.

Reed Mfg Services. Manufactures precision screw products from multiple spindle screw machines and CNC lathes.

Reese Machine Company. Supplies a variety of railroad maintenance-of-way equipment and custom parts. Also offers chemical and pump parts, as well as custom CNC machining.

Reliable Bronze & Manufacturing Inc. Carries large inventory of standard size bearings and bar or plate stock and can fulfill custom orders on made-to-print basis. Site incorporates detailed information of available items and capabilities.

Reliance Foundry. Specializing in cast steel, manganese, and iron castings for mining and aggregate, wood processing, oil and gas, and marine industries.

Remet Corporation. Precision industrial casting supplier.

RGS Machine Inc. CNC Machining, Milling and turning.

Richland Center Foundry Manufacturers of grey and ductile iron castings.

Rima Manufacturing Company. Manufacturer of precision machined metal products.

Rimnetics, Inc. Rapid prototyping and injection molding.

Rishi International Manufactures wide selection of nuts, washers, bolts, studs, rivets, screws, and nails in self coloured and galvanized finishes. Located in India with offices in Latin America and the UK.

Rivfast Ltd UK. Manufactures wide selection of rivets and eyelets, sells setting presses and tooling, and offers subcontract assembly services.

RLT Industries. Global sourcing for metal, plastic, and rubber components.

RMG Foundry. Produces all grades of gray and ductile iron castings.

Roberts Automatic Products, Inc. Machined products manufacturer. Areas include CNC turning and machining, screw machine products, and drilling, tapping, thread rolling, and broaching.