Relman
November 8th, 2007, 09:49 AM
No maths for a change, just plain common sense I hope!
Item A is fixed to Item B using machine screws into threaded holes in B.
Currently, the screws have helical spring-type lockwashers under the heads, with a plain washer under that.
I say that this arrangement is not locking the screw at all, just hold ing it relative to the plain washer. Furthermore, I say that the plain washer should be removed, and the spring washer used alone.
Design and Engineering both say the Spring + Plain method is correct.
Can anyone direct me to an authoritative source to break this standoff?
Item A is fixed to Item B using machine screws into threaded holes in B.
Currently, the screws have helical spring-type lockwashers under the heads, with a plain washer under that.
I say that this arrangement is not locking the screw at all, just hold ing it relative to the plain washer. Furthermore, I say that the plain washer should be removed, and the spring washer used alone.
Design and Engineering both say the Spring + Plain method is correct.
Can anyone direct me to an authoritative source to break this standoff?