Help with civil war relic ID please

[7thcav]

This iron object was discovered in a field with numerous civil war bullets, artillery shell fragments, fuses and uniform buttons. The cylinder is about 3 inches long , appears broken and has visible threading. Seems solid not hollow. Was curious if this is part of an artillery shell or cannon elevation screw? Numerous artillery relics were found in the general vicinity . Thank you very much for your thoughts

 

[Sandog]

Welcome to the T'net.

 

[russau]

If it were from the WW2 era ,(i know it's not BUT) then I'd say it was a ignitor from a artillery shell . other than that I'm stumped on it's I.D. !