Palm Button Hinge Lock Assembly for Little Giant Ladder


Average delivery time: about 1-2 weeks! 




Little Giant Ladder Authorized Dealer
Authorized Dealer since 1989








The 31639 Little Giant Ladder Palm Button Hinge Lock Assembly Kit is a very popular replacement part
for Velocity, Leveler, Megalite, Multi, Dark Horse 2.0 (green fiberglass) and LT Little Giant Ladders. The main difference between this and similar part number 20157/31005 is the different palm button assembly. 2" center-to-center measurement on the outer pins.  3/4" diameter center pin. If your Velocity, Leveler, Megalite, Multi, Dark Horse 2.0  (green fiberglass) or LT Little Giant Ladder has an EXTERNAL spring on the hinge that is clearly visible then this is likely the hinge lock you'll need. Part number 31639.  Also interchangeable with Leveler part # 31801.









This genuine Little Giant Palm Button Hinge Lock Assembly Kit comes with the following items:

  • Hinge Lock Assembly
  • Steel barrel (fits on hinge lock shaft as shown in pictures)
  • Orange plastic Palm Button, with black snap-in insert
  • External spring
  • 2 washers
  • Large snap ring
  • Small snap ring


Not compatible with any competitors ladder. Not compatible with most aluminum Type 1A, Type 1AA and some models of Fiberglass Little Giant Ladders. If your
Velocity, Leveler, Megalite, Multi, Dark Horse 2.0 (green fiberglass) or LT Little Giant Ladder has an EXTERNAL spring on the hinge that is clearly visible then this is likely the hinge lock you'll need.


I am a factory authorized Little Giant Ladder Dealer and have been selling Little Giants since 1989. I am VERY familiar with the product and I'm more than willing to help with any questions. I can also airmail this accessory to HI, AK, PR, GU, VI, or APO for $8 additional Priority Mail postage, however you MUST select the Priority Mail option during checkout or your item cannot be shipped. $23 additional postage to Canada. Average delivery time: about 1-2 weeks. Visa/MC/Disc/Amex or check/MO accepted. For questions, call 800-735-8281 on weekdays, 8:00 - 5:00 Mountain Time. Click here to check out my other ladder auctions.



Little Giant Ladder Palm Button Hinge Lock Assembly Kit  Instruction Sheet




Little Giant Ladder Palm Button Assembly Kit  Instruction Sheet