metric hardware call out 1

[PROEGUY]

i'm still working on our "mil-spec" metric hardware library so forgive me if it sounds as if i'm beating a dead horse...
is this syntax acceptable for a metric callout in a BOM?

DIN912_M3X1.5X8L SHCS, ALLOY STEEL PLATED

i'm trying to mimic the US mil spec syntax call out, i.e.
MS16995-1 SHCS, .086-56 UNC-3A X .188L

TIA

Sr. Pro/E Mechnaical Designer

 

[drawoh]

fcsuper,

In practice, when applied to threaded fasteners, my use of these terms may be simply this; a bolt is fastened with the use of a generic wrench; a screw is fastened with the use of some sort of dedicated driver, such as screw driver, hex head driver, Torx Plus driver, or torque driver. Ironically, even these basic definitions also have many exceptions, so even these are not universal. They certainly contradict the traditional definitions. They also do not provide any mechanically significant functional distinction. So, even though they may be commonly used, they do not provide any usefulness when classifying a threaded fastener.

The terminology has been abused, even by official specifications. Look up Grade_8 cap screws and tell me if they are screws or bolts. I have had hex keys described to me as Allen wrenches.

I pointed out in a previous discussion, that if your female companion has wrapped herself in a bolt of cloth, a mixture of vodka and orange juice might be a way to remove it.

JHG