Just out of interest and in the interests of saving money and hassle.. A conventional washer used with a bolt.. setscrew or nut is exactly the same in practice as using a Flanged nut, screw or bolt ..
Flanged fasteners were introduced to save time at the production stage.. i.e. fastener and washer all in one piece.. quicker and easier assembly..
Some have argued that tests have demonstrated that conventional washers or flanges do nothing to distribute load .. they are there simply to protect the item from nut/bolt corner damage..
Best to put them back on IMO..
by "conventional" I mean 8.8 or S grade standard fasteners.. setscrews, bolts, nuts, washers..
This does not apply to special applications..
Gettin' to old for this sh*t
Last edited by seadart; 28-05-14 at 21:09.