Dead nuts 

Archaic expression, used in many trades to mean 'spot on', or absolutely accurate. It originates from the times when machinsts machines were set with a set of nuts, on a fine threaded screw inside the machine which controled it's movements to and froe. The nut would be set at absolute zero, or the stop, or limit of the machine. When the nut was tightened, and the zero set, it would be considered a dead nut.

I know that part was accurate, my machine was dead nuts on!

Dead nuts by D. Cypher May 30, 2017

dead nuts 

Machinist/ fabricator/construction term; great precision or accuracy. Perhaps related to dead on.

The location of this anchor bolt is dead nuts.

dead nuts by nemo storm July 14, 2011

DEAD NUTS 

dead even, right on the money, exactly right, correct,level, plum, even. this list can go on.

Johnny was dead nuts with the other racer.

Johnny as dead nuts with his answer to that question.

DEAD NUTS by jimmyjoemickeychuck June 21, 2009

dead nuts 

Completely level or plumb. A definition used in the construction trades.

After I laid the porch steps I checked them with my level and they were dead nuts!

dead nuts by Nate Pesci July 12, 2006

Dead Nuts 

Means Accurate

That bullet hit her dead nuts in the middle of the head

Dead Nuts by BassMan69 July 30, 2010

dead nuts on 

Very accurate. When used as an explanatory measurement, it means that it is within 99% accuracy.

When I shot that bitch up in the face with my desert eagle, I made sure the slide was dead nuts on.

dead nuts on by Denis Baldwin February 3, 2004

deadnuts 

The more formal way of saying deadass.

Person 1: Sir, the general just died.
Person 2: Deadnuts?
Person 1: Deadnuts.

deadnuts by pinjer October 3, 2018