Appleton K100A Conduit Body Cover. Appleton UNILETS Conduit Body Cover, Blank, 1 in Hub, For Use With: Form 85 UNILETS Conduit Outlet Body, Stamped Aluminum, Natural Finish. Additional Description: APLE-K100A 1 COVER FOR FORM 35 UNILET. Catalog Description: Form 85 UNILETS Blank Cover With Screw, Hub Size: 1 IN, Form: 85, Mounting: Screw-In, Material: Stamped Aluminum, Finish: Natural Aluminum, Standard: UL 514A, UL 514B, UL File Number E2527, CSA C22.2 No. 18.3, CSA 065183, NEMA FB-1, For Fo.