HIT AIR SPARE BOLT/TOOL

Every airbag vest and jacket comes with one tool kit, if you misplaced or lost it you may buy one or more extra tool kits. The bolt must belong to the Hit-Air kit, as any slight difference in the diameter of the bolt may cause damage overtime in the keybox mechanism. 
Use of the wrong tools to replace the canister is one of the most common causes of keybox damage. 
Check your model to determine if you need a Y-type or B-Type