OEM Repair Part | 46-006490 | Tamper-proof Cover Screw For NOVA 1 Hand Dryers (with or without plug). Note: There are two versions of this part. Consult the manual that came with your dryer if you are unsure. This one is listed in the manual as: "Screw 10-32 X 1/2 SHCS ZN" Fits these dryers: 0830, 0833 (P)Note: For the NOVA 2 hand dryer use part 46-006393.