Reference Charts

BA threads are a precision fastening system with a rich history in British engineering. This BA Thread Chart serves as an essential reference guide for engineers, machinists, electronics technicians, model engineers, restorers and workshop professionals who work with small precision...

The Metric Fine Thread Chart is an essential reference tool for engineers, machinists, maintenance technicians, manufacturers, apprentices and workshop professionals who work with precision fastening systems. This comprehensive ISO Metric Fine Thread Sizes guide provides quick access to critical thread...

The PG Thread Chart provides a quick reference for Panzergewinde (PG) cable gland thread sizes and is designed for electricians, engineers, machinists, panel builders, maintenance technicians and industrial professionals who work with electrical installations and industrial equipment. Diameter TPI Drill...

NPS stands for National Pipe Straight. NPS threads are part of the American pipe thread system and are defined under the ASME B1.20.1 standard. Unlike NPT threads, NPS threads are straight (parallel) threads rather than tapered. NPS threads use a...

This NPT Thread Chart provides a quick reference for National Pipe Taper thread sizes and is designed for engineers, machinists, hydraulic technicians, maintenance professionals, manufacturers and workshop professionals. Whether you're selecting the right tap, die or drill bit, understanding NPT...

This BSPT Thread Chart provides a quick reference for British Standard Pipe Taper thread sizes and is designed for engineers, machinists, hydraulic technicians, maintenance professionals, plumbers and workshop professionals who need reliable specifications for pipe threading applications. Diameter TPI Drill...

BSP (British Standard Pipe) threads are a fundamental component in plumbing, hydraulic, pneumatic and industrial applications across Australia and worldwide. Whether you're an engineer, machinist, plumber, maintenance technician, hydraulic specialist or workshop professional, understanding BSP thread sizes and specifications is...

The BSB Thread Chart provides a quick reference for British Standard Brass thread sizes and is designed for engineers, machinists, restorers, model engineers, maintenance technicians and workshop professionals working with specialist British thread standards. Whether you're restoring vintage equipment, working...