Ideal for 42" Lateral Files. Progressive Full Extension. Load rating: 175lbs. Side Mounted: 1/2" plus 1/32" minus 0 each side. Material: Electro zinc-plated and lacquered cold rolled steel. Action: Heavy duty progressive full extension on precision steel ball bearing. 3 ball bearings per inch of race. 32mm Hole pattern for system mounting. Factory attached drawer release clips with non-handed quick disconnect drawer members. Hold-in feature to prevent bounce back. Specification. Type: Ball Bearing Slide. Color: Anochrome. Style: Left/right handed. Closing Action: Stay close. Height: 3-51/64". Extension: Full. Related Products: KV8505, KV8525. Accessories: KTNZ03, B295.4000, BZRM. Screws Included: Yes. Side Clearance: 1/2". Size: 18".