Threads
Thread data - metric, unified, ACME and others.
ANSI B1.20.1 - NPS - American National Standard Straight Pipe Threads
NPS pressure tight straight pipe threads with lubricant or sealer.
ANSI B1.20.1 - NPT - American National Standard Taper Pipe Threads
NPT and NPTF pipe threads - dimensions according ANSI/ASME B1.20.1/3.
ANSI/ASME B1.5 - ACME Screw Threads
Acme trapezoidal threads.
British Standard Brass Threads
British Brass Thread is an imperial unit based screw thread.
British Standard Cycle Threads
British Standard Cycle is a British Imperial screw thread standard.
BS 21 - Pressure Tight Pipe Thread Joints
BSPT - British Standard Pipe Taper threads & BSP or BSPF - British Standard Pipe Parallel (Straight) threads.
EN 10226 - Pipe Threads where pressure tight joints are made on the threads - Dimensions
Pipe threads where pressure tight joints are made on the threads - Part 1: Taper external threads and parallel internal threads.
EN 10241 - Steel Threaded Pipe Fittings
EN 10241 specifies requirements for screw threaded fittings.
ISO 228 - Pipe Threads where Pressure Tight Joints are not made on the Threads
Requirements for thread form, dimensions, tolerances and designation for fastening pipe threads, thread sizes.
ISO 28741 Metric Thread Dimensions for Spark Plugs
Metric threads spark plugs according ISO 28741.
ISO 2901 - Metric Trapezoidal Screw Threads
Dimensions of ISO metric trapezoidal screw threads.
ISO 7 - Pipe Threads where Pressure-tight Joints are made on the Threads
Pressure-tight joints made on the pipe threads.
ISO 724 - Metric Threads
Dimensions of metric threads according ISO 724.
Metric Threads - Clearance Holes and Tapping Drill Sizes
Recommended clearance holes and drill tap sizes.
NPT Threads - Taps and Drill Sizes
NPT - Briggs Standard Pipe threads - Taps and Drill Sizes.
Piping Thread Standards
Applied threaded standards used for piping connections.
Threads commonly used in Piping
Piping thread standards.
Unified Thread Standards: UNC & UNF Size Charts & Specifications
ANSI/ASME B1.1 Unified National Thread - UNC Coarse series and UNF Fine series.
Whitworth Pipe Threads
BSPP (G) - British Standard Pipe Parallel and BSPT (R/Rp) – British Standard Tapered Pipe for pipes and tapered threads - G/R/Rp.
Withworth Threads - Taps and Drill Sizes
Taps and drill sizes used for Whitworth - ISO 7 and ISO 228 threads.
