Guidelines for coefficients of frictions - stainless steel fasteners

 
Coeffiecients of friction µ total of stainless steel screws (VDI 2230)
µ total for lubricated condition
Screw Nut Oiled MoS2 Paste
A2 to A4 A2 to A5 0.23 - 0.50 0.10 - 0.20
A2 to A4 AIMgSi 0.28 - 0.35 0.08 - 0.16