Mechanics • 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 Thread
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 2841 - Spark Plugs Metric Threads
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.
Standards Applied for Piping Threads
Applied threaded standards used for piping connections.
Threads commonly used in Piping
Piping thread standards.
UNC and UNF - Unified Inch Screw Threads
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.