Basic Info
- What is it: M4 Ringbolt ~40mm
- Material: strong
- Dimensions: ~40mm long, hole in ring at least ⌀ 4mm



Tolerance
- Size: standard tolerance
- Material: standard tolerance
Get the part
- Buy: available as local make plus readily available in stores, search for “M4 ringbolt 40mm”
- Make: no instructions available
Meta
- Introduced by: Lars Zimmermann via Climate Change Survival Fortune Angels
- Original post, original post backup.pdf
- Open: Off the shelf part. Most likely prior art, unless you get a very special version.
- Disclaimer
Download Portal
Most parts have open design and manufacturing files you can download and work with.

More Parts
001.1 – Rod 390mm long ⌀ 16mm
021.1 – Disk ⌀ ~120mm
122.1 – board ~360x150mm
088.2 – M6 sleeve nut ~16mm
063.1 – Plate 210x330mm
108.1 – Beam ~660x30x30mm
037.1 – Strap 750x30mm
124.3 – Pocket small 400x200x100mm
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