Trace Routing Fastener

A lock pin assembly for use with a base structure comprising a fiducial support carrying an installation indicator, the lock pin assembly comprising:

• a shank;
• a head including a fixed portion and a tab pivotally coupled to the fixed portion;
• and
• wherein the tab is movable between a first position and a second position relative to the installation indicator, and
• wherein the tab is configured to pivot upon engagement with the fiducial support during advancement of the lock pin to a fully seated position, thereby allowing the installation indicator to be read by a visual quality system.

A fastening system configured to secure one or more second components to a first component, comprising:

• a base structure comprising a carrier portion and one or more pawls;
• a lock pin comprising a shank and a head, the head including a fixed portion, a tab pivotally coupled to the fixed portion, and a pair of flexible arms extending from the shank, each flexible arm having a first notch and a second notch configured to engage the pawl to maintain the lock pin in a shipping position and a fully installed position, respectively;
• and
• wherein the tab is movable between a first obstructive position and a second non-obstructive position relative to an installation indicator mounted on a fiducial support of the carrier portion, the tab pivoting upon engagement with the fiducial support as the lock pin is advanced to a fully seated position.