10pcs M3 Carbon Steel thumb screw with collar round head with knurling manual adjustment screws bolt GB834

Your selection of one of the following length

M3* 6mm (L)

M3* 8mm (L)
M3* 10mm (L)

M3* 12mm (L)
M3* 16mm (L)

M3* 20mm (L)

M3* 25mm (L)
M3* 30mm (L)