Kickass Square Spindle Extension Kit For Hella Thick Custom Doors And Steel Gates Making Lock Installation A Breeze On Mechanical Keyless Entry Hardware Sets

Heavy Duty Square Spindle Extension Kit For Custom Steel Gates
✔️ Fits 5/16 inch 8 mm spindle holes 115mm to 140mm length

This sturdy mounting adapter removes guesswork from installing heavy custom doors and steel gates. You get a ready setup to join standard keyless levers to thicker framing without swapping out the whole lockset. Workers love using it to speed up retrofits on warehouse entrances and patio barriers.

✅ Built for 5/16 inch 8 mm square spindle lock bodies
✅ Fits frame gaps from 2 3/8 inches 60 mm up to 4 inches 101 mm
✅ Includes one 115mm 4.5 inch extension rod and one 140mm 5.5 inch shaft
✅ Supplies two 90mm 3.5 inch screws paired with two 100mm 4 inch fasteners
✅ Adds four 5mm 0.2 inch m5 straight spacing sleeves for alignment

💡 Why do locksmiths install square spindle extension kits on thick exterior doors?
- These handy hardware upgrades bridge the gap between standard lever handles and oversized framing gaps
- Contractors match exact thread pitch and shoulder diameter for reliable linear slide unit performance
- Retrofitting existing carriage plates prevents misalignment on heavy timber or welded steel gate assemblies