At NSI Bolt & Nut Corporation, our experience allows us to offer high quality products and services to meet the fastener needs of a diverse set of industrial clients. We serve industries ranging from construction and transportation to alternative energy and mining, in each case, meeting and exceeding customer requirements.

• Surface inspection (Magnetic Particle Inspection) is carried out of each bar end to end
• Positive Material Identification using XRF to certify in process chemistry of each bar
• 100%-dimensional verification using calibrated Vernier’s and Go No-Go gauges
• Coupling nuts
• Carriage bolts
• Flange nuts
• Flange bolts