Sizing a Bolt, step by step
A teaching sequence. Real joints follow the governing standard.
- Resolve the joint loadSeparate tension from shear, and apply the load factor.
- Choose a property class8.8 or 10.9 for steel. Proof stress sets the available preload.
- Try a size, check preloadPreload of 0.75 times proof times stress area must beat the clamp need.
- Check joint separationExternal tension must stay below the preload, with margin.
- Check the clamped partsBearing under the head, and enough thread engagement length.
- Specify the tighteningTorque, lubrication state, sequence and how it will be checked.
Simplified teaching sequence. Real joints follow VDI 2230 or the governing code. Educational reference.
Questions about the Sizing a Bolt poster
- What’s on the Sizing a Bolt poster?
- 6 numbered steps. A teaching sequence. Real joints follow the governing standard. Resolve the joint load — Separate tension from shear, and apply the load factor.; Choose a property class — 8.8 or 10.9 for steel. Proof stress sets the available prel…; Try a size, check preload — Preload of 0.75 times proof times stress area must beat t…; Check joint separation — External tension must stay below the preload, with margin.; Check the clamped parts — Bearing under the head, and enough thread engagement length.; Specify the tightening — Torque, lubrication state, sequence and how it will be checked.. Simplified teaching sequence. Real joints follow VDI 2230 or the governing code. Educational reference.
- Who is the Sizing a Bolt poster for?
- Sizing a Bolt belongs to the Mechanical Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning machine design can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Sizing a Bolt poster?
- Designing any bolted joint that carries real load rather than just locating a cover. A wall chart earns its place by being glanceable from where the work is happening, so Sizing a Bolt belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
- What other posters go with Sizing a Bolt?
- Welded or Bolted?, Bearing Life and Choosing a Bearing sit alongside Sizing a Bolt in the Mechanical Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Welded or Bolted?Bearing LifeChoosing a Bearing
- Is the Sizing a Bolt poster free to download and print?
- Yes. Sizing a Bolt downloads as a free PDF with no account, no email and no watermark, like everything else in the Mechanical Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Sizing a Bolt poster print at?
- Sizing a Bolt is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Sizing a Bolt loses nothing.Printing guide
Related posters
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