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
059.1 – Plate 390x270mm
068.1 – ° M4 ring bolt 10mm
115.3 – 2 corner bracket modified Round +
048.2 – Tube 60mm ⌀152mm
010.1 – Cable with plug and switch
118.1 – Board ~360x150x18mm
146.1 – Key ring ⌀ 38mm
126.1 – “Flap” board ~420x80x18mm
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