1. Product Name: Captive Panel Screws 2. Type: PFHV (Screw Head, no Spring)3. Material: Stainless Steel and Steel4. Thread Size: M3, M3.5, M4, #4-40, #6-32, #8-325. Small, compact and low profile design for limited access areas.6. Two screw lengths.7. Universal Slot/Phillips recess standard.