PSK 3027 - Captive Nut Cage, Wing to Door Pillar Land-Rover Series 2 £2.20 exc. Quantity: at £2.20 each Out of Stock Out of stock. 0 in your basket View Basket Checkout Captive Nut Cage, Wings (or Fenders) to Door Pillar Used on very early bulkheads where fastening of the wing to the door pillars is into 5/16" UNF threaded square nuts held in captive nut cages. See part number NS 605011 for 5/16" UNF Square Nut. Fitted to: Series 2/2a, 4-cylinder, Type 1 only.