Is this 3D model free to download?

Yes, Bolt and nut sizer is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by SashimiTabernacleChoir, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Bolt and nut sizer 3D printable model by SashimiTabernacleChoir

Bolt and nut sizer

Source: Thingiverse by SashimiTabernacleChoir

The Bolt and nut sizer is a free printable 3D model from Thingiverse by SashimiTabernacleChoir. Device to identify bolts and nuts by size. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

671 saves Source: Thingiverse Updated 2026-11-06 License: CC-BY · commercial OK 2 makes Category: Tools & Workshop

Tags: 3D printing, bolts, measurement tool, nuts, parametric, sizer

About this model

Device to identify bolts and nuts by size. SAE sizes from #4 up to 1/2, with customizable openscad file. There are ruler tic-marks along one edge for measuring bolt lengths. After printing you will need the following to populate it: (1) 3/4" x #4 machine screw and (2) #4 nuts. Ditto for #6, #8, #10. Then (1) nut and (1) bolt each for 1/4, 5/16, 3/8, 7/16, and 1/2. Glue in the bolts and nuts, taking care to put them in the proper columns as shown in the picture, because bolt head sizes occasionally differ from the sizes of their matching nuts. Bolts of the same diameter can come with different thread counts, so either pick the thread you use most for each size, or make 2 of these gizmos to cover both coarse and fine threads. You can also fill in the lettering and the ruler tics with caulk o…

Frequently asked questions

Is this 3D model free to download?: Yes. Bolt and nut sizer is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by SashimiTabernacleChoir.
Who made this model?: Designed by SashimiTabernacleChoir, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.