40″ Locking Drawer Slides, Full Extension


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Please Note: This item has been discontinued by Hettich.


Hettich KA 3338 40″ Locking Drawer Slides, Heavy Duty. Locks in both the closed and open positions. Great for mobile applications like RV’s, utility truck tool boxes, fire trucks, ambulances, and other mobile applications. Please read the specification sheet for details and weight ratings.  Please note: The Lock handle protrudes an additional 1-3/8″ (35mm) longer than the length of the slide itself.


These telescoping precision full extension 40″ locking drawer slides are designed for high loads, up to 500 lb. capacity, with cushioned in and out stops. Chromated steel. Runner and ball race form a single non-detachable unit. Smooth action and high side stability through precision slide. Ball spacers made of steel for higher load and better impact resistance. Grade 200 hardened steel ball bearings for long life, with USDA approved food grade grease. PRICE IS PER PAIR. Screws not included.


3/4″ Installation Width – 3″ Height. Tested Weight Cap. 320 lbs. @ 10,000 cycles – 210 lbs. @ 75,000 cycles. Cabinet member requires #10 Flat head countersunk screw. Drawer member requires #10 pan head screw. Screw length will vary depending on application. Use all screw holes to achieve full load rating.


40″ is the longest available in the KA3338 series. Manufactured by Hettich America, in Buford, GA, USA.

Features & Specifications of these 40″ Locking Drawer Slides.


  • Lock-in and Lock-out functions with Front Release activator handle
  • Highly visible handle, coated with a red safety finish, also easily identifiable by touch
  • Spring loaded locking system ensures positive lock
  • Precision ball bearings
  • Cushioned in-stop for noise absorption
  • Non-disconnect
  • Steel ball cage for higher load and impact implications

    Warranty Hettich Warranty
    Specifications Hettich KA3338 Specifications (753kb PDF file)

    More Help Drawer Slide Terms
    Series More: Hettich KA 3338 Locking Slides

    More Hettich View More Hettich Products
    Email Support Email Technical support for Drawer Slides

  • Weight 29.5 lbs
    Dimensions 42 × 5 × 5 in

    Installation width

    Weight Class



    Soft Close

    Manufactured in


    Unit of Measure


    Extension Loss

    Disconnect Type



    Closed Length

    Model Number


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    1 review for 40″ Locking Drawer Slides, Full Extension

    1. Guy M Pruitt (verified owner)

      Great product
      These slides are very well made. I would use no other.

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