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- Walk to the machine with one sheet that has every fastener on the job on it, with its tap drill, wrench size, grade and tightening torque, instead of eleven browser tabs.
- Pin the tap-drill and torque tables to the wall by the drill press, printed black on white, where a phone with oily hands is no use.
- Torque a plated, oiled or anti-seized joint to a figure that assumes what you actually put on the thread, rather than the dry default.
- Bolt schedule with no line limit - build a job sheet listing every fastener on the job with its pitch, tap drill, wrench size, grade, target preload and tightening torque on one line each. A free schedule holds 3 lines.
- Saved schedules, one per job, instead of the 1 a free plan keeps - named, stored in your browser, no account.
- Print the bolt schedule as a job sheet or save it as a PDF, and export it as CSV for a parts list or a work order.
- 8 printable shop charts - metric coarse, metric fine, UNC, UNF, pipe threads, a tap-drill reference covering all 228 sizes, and torque by grade for ISO 898-1 and SAE J429. Laid out for paper: black on white, column headers repeating at the top of every page, banded rows, no row split across a page break, and landscape where the sheet needs it. Print them or save them as a PDF.
- Selectable nut factor (K) - dry / as-received, zinc-plated, lightly oiled, and wax or anti-seize - in the bolt-torque calculator and on the bolt schedule's torque column, so the figure matches how the joint is actually assembled instead of the K = 0.20 default.
Weekly, yearly and lifetime plans are available.
Every thread size page stays free: all dimensions, the recommended tap drill and clearance hole, wrench sizes, and a torque estimate at the default K = 0.20 - plus the thread identifier, the tap-drill calculator, every guide, and a working bolt schedule of 3 lines you can build, save and read in full. Every figure printed on a chart is free to read on the size page it came from, and a sample of each sheet renders for everyone.
A job sheet as it comes out of the printer, longer than a free schedule holds. The job name, the locations and the quantities are sample data. The figures are not: every pitch, tap drill, wrench size, grade, preload and torque cell is the value published on that size's own free reference page, at the default K = 0.20. Printed it is black on white, with the column headers repeating at the top of every page and no row split across a break.
Sample job: pump housing rebuild
| Location | Size | Qty | Pitch | Tap drill | Hex A/F | Grade / class | Preload | Torque |
|---|---|---|---|---|---|---|---|---|
| Housing to frame | M10 × 1.5 | 8 | 1.5 mm · ≈16.93 TPI (converted) | 8.5 mm | 16 mm | Class 10.9 | 36.1 kN | 72 N·m |
| Bearing caps | M8 × 1.25 | 12 | 1.25 mm · ≈20.32 TPI (converted) | 6.75 mm | 13 mm | Class 8.8 | 15.92 kN | 26 N·m |
| Cover plate | M6 × 1.0 | 6 | 1 mm · ≈25.4 TPI (converted) | 5 mm | 10 mm | Class 8.8 | 8.74 kN | 11 N·m |
| Drive coupling | 1/2-13 UNC | 4 | 1.954 mm · 13 TPI | 27/64" | 3/4" | SAE Grade 8 | 12750 lbf | 106 lb·ft · 1275 lb·in |
| Suction flange | 3/8-16 UNC | 6 | 1.588 mm · 16 TPI | 5/16" | 9/16" | SAE Grade 5 | 4950 lbf | 31 lb·ft · 371 lb·in |
| Guard brackets | 1/4-20 UNC | 10 | 1.27 mm · 20 TPI | #7 | 7/16" | SAE Grade 2 | 1313 lbf | 5.5 lb·ft · 66 lb·in |
Dimensions per ISO 68-1 / ISO 261 / ISO 262 and ASME B1.1; pipe threads per ASME B1.20.1, ISO 7-1 and ISO 228-1. Proof loads per ISO 898-1:2013 and SAE J429. Preload is 75% of proof load; torque is the T = K · F · d estimate at K = 0.20 (dry / as-received steel).
The usual default when no lubricant is specified.
Torque figures are estimates that depend on the stated nut-factor assumption. Verify against your fastener manufacturer's data and joint requirements before assembly.