Q: What are they used for?
Chicago bolts are used for knock-down assembly, traditional bookbinding and flower or leaf presses, wherever a project needs a bolt that can be taken apart and reassembled.
00K4001 - 20 to 26mm Chicago Bolts, pkg. 4
Length:
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Turned brass bolts for knock-down use or for their traditional use in binding. They are also ideal for flower and leaf presses.
Sizes noted are minimum and maximum inside measurements (from head to head). The range of adjustment is 6mm (1/4") for each. Bolt diameter is 6mm.
Sold in packs of four.
Chicago bolts are used for knock-down assembly, traditional bookbinding and flower or leaf presses, wherever a project needs a bolt that can be taken apart and reassembled.
They come in six inside-measurement ranges from 20mm to 66mm, measured head to head, with a 6mm bolt diameter throughout.
Each size gives about 6mm (1/4") of adjustment range, so choose the size range that covers your project's thickness.
They're available in packs of four, enough for a typical binding or knock-down project.
Yes, they're turned from solid brass rather than plated, which suits their traditional binding and knock-down uses.
| Materials | Brass |
| Dimensions | 20mm–26mm; 25mm–31mm; 30mm–36mm; 35mm–41mm; 40mm–46mm; 60mm–66mm (inside measurement, head to head); 6mm bolt diameter |
| Includes | Brass bolt |
| Package Quantity | Pack of 4 |
| Warranty | Lee Valley Satisfaction Guarantee |

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Length
Variations:
Chicago Bolts
Turned brass bolts for knock-down use or for their traditional use in binding. They are also ideal for flower and leaf presses.
Sizes noted are minimum and maximum inside measurements (from head to head). The range of adjustment is 6mm (1/4") for each. Bolt diameter is 6mm.
Sold in packs of four.
Choose an option to view item availability.
Choose an option to view item availability.
Choose an option to view item availability.
Choose an option to view item availability.