Hillman 5/16 in. X 4 in. L Hex Stainless Steel Lag Screw 25 pk 9-98-991-65 so the knob and lever

so the knob and lever is always free to turn

For the front wardrobe door roller assembly use Prime-Line part N 6502

Use these partially threaded

The EKLIND 69218 Hex-L Key - 18pc set

Hillman 5/16 in. X 4 in. L Hex Stainless Steel Lag Screw 25 pk 9-98-991-65 so the knob and leverStainless steel hex lag screws offer a higher level of corrosion resistance and is great for any outdoor project. Common applications include retaining walls, deck frames and outdoor play equipment. This screw has coarse threads with a hexagonal drive. Its stainless steel finish provides anti corrosive properties and makes it slightly stronger than regular (un hardened) steel bolts. Brand Name: HILLMAN Size: 5 16 in. Length: 4 in. Head Type: Hex