ASME B18.18.1 pdf download Inspection and Quality Assurance for General Purpose Fasteners 1 GENERAL INFORMATION 1.1 Basic Plan Structure This Standard outlines a Quality Assurance Plan for internally and externally threaded fasteners and acces- sories or associated parts. Provisions are included for sampling plans, inspection frequencies, control proce- dures, and record keeping. Included in this plan are fasteners for general...