bolt nut

3d bolt and spring

Isometric views of parts

Orthogonal views of a skp piece

Screws

Roskas

Views of a support and 3d model

2d gears

Mechanic piece

simple 3d model

Rivets and screws pdf

Hexagonal screw

Representation and designation of metric threads

2d zip screws

hex bolts

3d nut

chain transmission

m6 screw

3d object – dimension

3d mechanical part

Structural bolts of different sizes