Shamrock Bolt And Screw DBA Shamrock Precision is a discrete manufacturing company focused on Quality, Delivery, and Service Excellence (AS9100) Shamrock Precision is a customer-focused precision machine shop serving diverse industries worldwide. Certifications in AS9100, ISO9001. Shamrock Precision is committed to deliver high quality components and meet challenging on-time deliveries by following our core principles of Quality, Delivery, and Service Excellence. Shamrock Precision is the market leader of shear screws used in the oilfield service industry. Specializing in the design, manufacture, and certification of shear screws, shear pins, and other fastening devices designed to shear at specific values. Shamrock Precision uses advanced CNC machining, manufacturing, measuring, and analytic tools in state of the art facilities to meet strict customer and industrial standards. With locations in Dallas, Texas and Johor, Malaysia, Shamrock is capable of meeting worldwide demand with short lead times. Industries served include oilfield, aerospace, defense, telecommunications, automotive, and industrial. Shamrock specializes in manufacturing SHEAR SCREWS from its locations in Dallas, Texas and Johor, Malaysia - sourcing materials to specifications, manufacturing to print, testing, and certifying shear values to meet strict customer requirements using dependable CNC machine tools. Brands include Mazak, Citizen, Okuma, Keyence, Brown and Sharp, Mitutoyo, MasterCAM, Seco, Iscar, and Kennametal. Shamrock machines precision components to customer specifications ranging in size from 0.03"-10" diameter and 0.05"-12" length. Shamrock works with nearly all materials including steel, brass, aluminum, and nickle alloys.