The collection of 15 nuts, 21 bolts/screws and 21 rivets/pins/studs/washers was made in Blender 3.1
Render 1920x1080 px jpeg (Cycles)
Transformations has been reset and model is placed at scene origin [0, 0, 0 XYZ].
Textures PBR metal-rough 2048x2048 png
Models are not triangulated and consist mainly of quadrilaterals (the number of triangles is minimized, but due to the geometry of the thread, it is not possible to completely abandon them).
Each model has a ready-made UV-map without overlap
Nuts (sizes and number of polygons/vertices)
Bolts and screws (sizes and number of polygons/vertices)
Rivets, pins, studs and washers (sizes and number of polygons/vertices)
Formats: