Nuts and bolts.
Bolts, nuts, fastener.
Nuts and bolts.
Nuts and bolts.
Ball screw.
Nuts, screw.
Nuts and bolts.
Fastener.
Bolts, nuts.
Nuts and nozzles.
Bolts, nuts, washer, threaded rods, screw.
Flat washer.
Bolts, nuts, wahsers.
Bolts, nuts.
Washer.
Fasteners.
Bolt screw.