A seat assembly, comprising: a seat frame; a track (103,203); and a track lock assembly slidably connecting the seat frame to the track (103,203), the track lock assembly comprising: a track foot body configured for sliding translation within the track (103,203), a pin member having a first end configured for threaded engagement with the track foot body and a grip portion disposed at a second end and a plunger configured for sliding engagement with the pin member between the first end and the second end and for locking engagement with the track lock assembly, characterised in that the track lock assembly further comprises a first nut threaded onto the pin member and configured to lock the plunger into one of a plurality of access openings (105,205) within the track (103,203) and configured to receive the plunger, and wherein the track lock assembly further comprises a second nut threaded onto the pin member and configured to jam lock the first nut, and wherein the first nut and the second nut include a knurled surface configured for threading both the first nut and the second nut along the pin member by hand; wherein the track foot body includes an anchor section configured to slidably receive the plunger and an aperture configured to receive the first end of the pin member; and wherein the first end of the pin member is threaded into the anchor section of the track foot body. a seat frame; a track (103,203); and a track lock assembly slidably connecting the seat frame to the track (103,203), the track lock assembly comprising: a track foot body configured for sliding translation within the track (103,203), a pin member having a first end configured for threaded engagement with the track foot body and a grip portion disposed at a second end and a plunger configured for sliding engagement with the pin member between the first end and the second end and for locking engagement with the track lock assembly, characterised in that the track lock assembly further comprises a first nut threaded onto the pin member and configured to lock the plunger into one of a plurality of access openings (105,205) within the track (103,203) and configured to receive the plunger, and wherein the track lock assembly further comprises a second nut threaded onto the pin member and configured to jam lock the first nut, and wherein the first nut and the second nut include a knurled surface configured for threading both the first nut and the second nut along the pin member by hand; wherein the track foot body includes an anchor section configured to slidably receive the plunger and an aperture configured to receive the first end of the pin member; and wherein the first end of the pin member is threaded into the anchor section of the track foot body. a track foot body configured for sliding translation within the track (103,203), a pin member having a first end configured for threaded engagement with the track foot body and a grip portion disposed at a second end and a plunger configured for sliding engagement with the pin member between the first end and the second end and for locking engagement with the track lock assembly, characterised in that the track lock assembly further comprises a first nut threaded onto the pin member and configured to lock the plunger into one of a plurality of access openings (105,205) within the track (103,203) and configured to receive the plunger, and wherein the track lock assembly further comprises a second nut threaded onto the pin member and configured to jam lock the first nut, and wherein the first nut and the second nut include a knurled surface configured for threading both the first nut and the second nut along the pin member by hand; wherein the track foot body includes an anchor section configured to slidably receive the plunger and an aperture configured to receive the first end of the pin member; and wherein the first end of the pin member is threaded into the anchor section of the track foot body.