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Heavy-duty soft-down lid stay for use on upward-opening flap doors with concealed hinges. Designed to hold door in closed and open position.
  • Torque Calculation: Door Height x 1/2 x Weight (for 90° opening angle)
  • K-Type (Light-Duty): 140~179kg·cm (122~155 lbs·inch) / pair
  • Hold door in closed and open position.
  • Used in pairs.
  • HDS is designed to operate at room temperature, 5°-35°C (41°-95°F)
  • Use with concealed hinges (sold separately).
  • NOTE: Arm bracket for wood or aluminum frame, must be ordered separately.
Lapcon series products provide the smoothest opening and closing system imaginable, equipped with Sugatsune's built-in patented dampening device. Doors and lids will come down slowly & softly which eliminates slamming doors or smashed fingers.  

Required Accessories


Manufacturer Location:
lid stay
2 year limited warranty.
California Residents:
WARNING: This product can expose you to chemicals including lead, nickel and/or chrome, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
  • Torque Calculation: Door Height  x 1/2 x Weight (for 90° opening angle)
  • K-Type (Light-Duty): 140~179kg·cm (122~155 lbs·inch) / pair
  • Special Certifications: 90,000 cycles tests approved by LGA.
  • Usage: upward-opening flaps

Installation / Specification Documents

Return Policy

If an item is returnable (See restocking list), you must first call or use form below to request a return goods authorization (RGA) prior to returning any items purchased through us.

We will not accept any returns without an RGA. All items must be returned in "Re-Saleable Condition", in original packaging with all parts included. Customer is responsible for shipping charges.

Our restocking policies vary, depending on manufacturer and item.

Click here for our restocking fee schedule. Please call or email us with any other questions you may have on returns.

Request a Return Authorization

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