Geometry Nodes screws nuts and bolts.
With these procedural screws nuts and bolts you can generate any size you need.

Parameters:
Thread length
Top Length
Diameter
Thread Width
Material
Hex
Philips
Torx
Flat
Nut
Bolt

VERSION 4.2
September 7, 2024
4.2 Compatibel
Extra Inbus caps where added

VERSION 2.0
June 6, 2024
4.1 Compatibel
Smooth remesh parameters
Remesh resolution parameter

VERSION 1.1
September 26, 2023
3.6.2 Compatibel

VERSION 1.0
August 23, 2022
Release