Abstract: A security arrangement for preventing removal of a bolt or nut threaded fastener including a shielding sleeve receiving the fastener hex portion, the threaded body passing out through a hole in a closed end in the sleeve. A socket wrench can be received in the open end and engage the hex element for wrenching. A blocking cap is received over the open end and a locking pin driven through a hole in one side of the cap, a pair of aligned holes in the sleeve end, and a blind hole extending partially into the inside of the opposite side of the blocking cap.

Abstract: A theft deterrent arrangement for a passenger side air bag assembly includes hollow bolt shield cylinders surrounding mounting bolts holding the air bag assembly to a fixed cross member, a locking cylinder locked in place to prevent access to the bolt head. Removal of the locking cylinder with a key allows removal of the bolts and air bag by use of a socket wrench.