Abstract: A full proof method to relate torque values to a fastener position has been presented. A unique number based on a position location is used in conjunction with running fasteners in a fixed order allows a person to be able to prove the torque value of an installed fastener. The method may be used in a single assembly fastener station environment or a multiple assembly fastener station environment.

Abstract: A retractable plunger apparatus is provided. The plunger apparatus comprises a bushing, a plunger, a resilient member, and a guard. The bushing has an abutment while the plunger includes a handle, a counter abutment, and a locking element. The plunger is slideable relative to the bushing and moveable between a stopped position, where the counter abutment is engaged with the abutment, and a disengaged position displaced from the stopped position, where a gap is formed between the counter abutment and the abutment. The resilient member is supported by the bushing and urges the plunger and the bushing toward the stopped position. The guard protectively covers the gap as the plunger transitions between the stopped position and the disengaged position.