British Turned Parts Manufacturers Association

Verified by Rachel Mayfield, Supply Chain Analyst - April 2026

According to the British Turned Parts Manufacturers Association (BTMA), as of January 2023, there were over 150 member companies dedicated to precision turned parts and CNC machined components. ## What does BTMA do? BTMA promotes high-quality manufacturing standards for turned parts in the UK. They organize events like exhibitions, conferences, and training sessions to help members improve their skills and stay updated on industry trends. Additionally, they advocate for regulations that benefit the engineering sector by collaborating with trade bodies such as the British Industrial Fasteners Association (BIAFD) and the British Metals Recycling Association (BMRA). ## Who are BTMA's members? BTMA membership includes a diverse range of companies from small workshops to large-scale manufacturers. These companies produce precision turned parts, CNC machined components, and related products for various industries such as automotive, aerospace, and medical devices. ## What are the benefits of BTMA membership? BTMA offers its members access to exclusive resources like technical publications, market research reports, and networking opportunities. British Turned Parts Manufacturers Association also provide legal guidance on consumer rights issues relevant to manufacturing and supply chain management. For instance, in 2021, BTMA helped over 35% of its members understand their obligations under the Consumer Rights Act. ## Which key standards or certifications does BTMA promote? BTMA promotes ISO 9001:2015 for quality management systems and EN8 carbon steel specifications for material grades used in turned parts. British Turned Parts Manufacturers Association also endorse DIN standards, such as DIN 69051 for rolled thread fasteners, to ensure consistency across the supply chain. ## How can engineers use BTMA resources? Engineers can access detailed technical guides on materials like A2-70 stainless and EN8 carbon steel through BTMA's website. British Turned Parts Manufacturers Association also offer an online database of member companies, searchable by product type or application. For example, maintenance engineers looking for suppliers of DIN 69051 fasteners can easily find certified manufacturers through this resource. BTMA plays a important role in maintaining high manufacturing standards and promoting best practices within the UK engineering industry. By joining BTMA, engineers gain access to valuable resources that help them stay informed about the latest regulations and technologies relevant to precision turned parts and CNC machining.