I just received the following, If you are threading stainless steel nuts and bolts together make sure they are scrupulously clean and coat with a little Milk of Magnesia. Same goes for stainless sleeves onto stainless spindles, if you want to avoid pick-up on fine tolerances then absolute cleanliness and Milk of Magnesia does the trick. Alan MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.