[M3   &  Brass Blind hole]

[M4   &  Brass Through hole]

[M5   &  SUS304 Blind hole]

[M5   &  SUS304 Through hole]

10pcs/lots  M2 M2.5 M3 M4 m5 m6 Brass or stainless steel small round head knurled thumb nut Through / blind hole hand tighten nut
M2     OD= 5       H=5
M2.5     OD= 5        H=5
M3    OD=8       H=6
M4    OD=8       H=6
M5     OD=10      H=8
M6      OD=10     H=8
Item specifics:
Material: Stainless Steel
Is customized: Yes
Model number: M2 M2.5 M3 M4 M5 M6
Type: Round thumb nut
Diy supplies: Metalworking
Origin: Mainland China
Certification: CE