18″ Heavy Duty Drawer Slides, Full Extension, 500 lb.


Buy Save
Heavy Duty Drawer Slides 3 - 4 5%
Heavy Duty Drawer Slides 5 - 14 10%
Heavy Duty Drawer Slides 15 - 59 13%
Heavy Duty Drawer Slides 60 + 15%

Hettich Logo

Hettich KA 3320 telescoping precision full extension 18″ drawer slides for high loads, up to 500 lb. capacity, with cushioned in and out stops. The runner and ball race form a single non-detachable unit. The 18 inch drawer runner is not removable. You will need to unscrew the drawer from the runner to remove the drawer box. The reason for this is with 18 inches of travel to its fully extended 36 inch length, the weight of the loaded drawer acheives a great deal of momentum and must come to an abrupt stop. A lever release would need to be massive and would be expensive and hard to fit into the slide mechanism. Smooth action and high side stability through precision slide. Ball spacers made of noise-absorbing plastic with hardened steel balls.


 3/4″ Installation Width – 3″ Height. Tested Weight Capacity 500 lbs.@ 10,000 Cycles – 325 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 acheive full load rating.


PRICE IS PER PAIR. Screws not included.


Manufactured by Hettich America, in Buford, GA, USA.

Features & Specifications of the Hettich, 03320-018-44, 18″ Drawer Slides, Full Extension, Heavy Duty



  • 3320 Drawer Slide 18" bulk w/o screws Pregalv.
  • Up to 500 lb. Load Capacity
  • 3/4" Required Each Side For Installlation
  • Full extension
  • Industrial Applications

  • Specifications Hettich KA3320 Specifications, Brochure & Instructions (515 kb PDF file)

    More Help Drawer Slide Terms
    Series See more: Hettich KA 3320 Heavy Duty

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

    Weight 12 lbs
    Dimensions 20 × 3 × 2 in

    Unit of Measure

    Closed Length



    Disconnect Type



    Installation width

    Manufactured in

    Soft Close



    Weight Class

    Model Number


    You may also like…

    1 review for 18″ Heavy Duty Drawer Slides, Full Extension, 500 lb.

    1. Dan (verified owner)

      18 inch slides work great
      I installed these on an 80 inch wide, sliding fire place hearth. The aluminum frame work weighs about 80 lbs, the sides are tiled with a marble slab top. I can stand on the front edge with slides fully extended with less than an eighth inch deflection. They work great.

    Add a review

    Your email address will not be published.

    Customer Testimonials

    Related Products