34 sizes · landscape
Metric coarse thread chart (ISO)
Every ISO metric coarse size from M1 to M64 on one sheet: pitch, pitch and minor diameters, the standard tap drill, all three ISO 273 clearance holes and the hex across-flats.
8 sheets · 228 sizes
Printable shop charts
The same reference, laid out for paper. Each sheet is a single high-contrast table built to print black-on-white with the column headers repeating at the top of every page, no row split across a page break and no series heading stranded at the foot of one - the one thing a size page in a browser cannot give you at the drill press.
Where a standard defines nothing for a size - ISO 898-1 starts at M1.6, SAE J429 skips the numbered sizes and stops at 1-1/2 in, and pipe threads carry no bolt preload at all - the sheet prints not defined and a footnote saying which standard stops where. It never fills the gap with a computed figure.
65 sizes · landscape
Metric fine thread chart (ISO)
The ISO metric fine-pitch series - every published fine pitch for each nominal diameter, with pitch and minor diameters, tap drill and clearance holes.
27 sizes · landscape
UNC coarse thread chart
The Unified coarse series, #0 to 2-1/2 inch: threads per inch, major, pitch and minor diameters, the tap drill in both inches and millimetres, and the hex across-flats.
24 sizes · landscape
UNF fine thread chart
The Unified fine series with threads per inch, major, pitch and minor diameters and tap drills in inches and millimetres - the companion sheet to the UNC chart.
228 sizes · portrait
Tap-drill reference chart
The drill-press sheet: the recommended tap drill for all 228 thread entries - metric coarse and fine, UNC, UNF, UNEF, UN and pipe - with the named drill, its size in millimetres and inches, and the thread engagement it actually produces.
30 sizes · portrait
Pipe thread chart (NPT / BSPT / BSPP)
Tapered and parallel pipe threads on one sheet: trade size, form, threads per inch, major and pitch diameters, and the tap drill where the form has one.
99 sizes · landscape
Metric torque chart (ISO 898-1)
Target preload and estimated tightening torque for property classes 8.8, 10.9 and 12.9 across every metric coarse and fine size - with the sizes ISO 898-1 does not cover marked as such rather than filled in.
99 sizes · landscape
Inch torque chart (SAE J429)
Target preload and estimated tightening torque for SAE grades 2, 5 and 8 across the Unified series - including the numbered sizes and the diameters above 1-1/2 inch, which J429 does not grade and which are marked as undefined here.
What costs and what does not
The numbers are free. The sheet is not.
Every dimension, tap drill, clearance hole and torque figure on these charts is free to read on its own size page, in the tap-drill calculator and in the torque estimate - no account, no paywall, forever. A sample of each sheet renders for everyone so you can judge the layout before deciding. Premium unlocks the complete print-ready sheets.