![Technic Axle Connector Ridged [with x Hole x Orientation]](https://cdn.rebrickable.com/media/thumbs/parts/elements/4113805.jpg/250x250p.jpg)
Technic Axle Connector Ridged [with x Hole x Orientation]
6538bTechnic Connectors
Colors
20
Colors
Appears in these sets
Cargo Plane
2014
Container Truck
2014
Customized Pick up Truck
2014
Remote-Controlled Volvo L350F Wheel Loader
2014
Technic Connectors
2014
EV3 Expansion Set
2013
Excavator
2013
Grand Prix Racer
2013
Mindstorms Education NXT Base Set
2013
Mobile Crane MK II
2013
Red Five X-Wing Starfighter
2013
Service Truck
2013
Helicopter
2012
Logging Truck
2012
Pick-Up Tow Truck
2012
Flatbed Truck
2011
Mercedes-Benz Unimog U400
2011
Supercar
2011
Mindstorms Education Resource Set
2010
Mobile Crane
2010
Motorized Excavator
2010
Crane Truck
2009
Front Loader
2009
Tractor with Trailer
2009
Castle Coin Bank
2008
Cherry Picker
2008
Excavator
2008
Off-Roader
2008
River Chase
2008
Telescopic Handler
2008
Aero Booster
2007
Airport - ANA Version
2007
Barraki Deepsea Patrol
2007
Big Rig
2007
Blade Titan
2007
Booster Beast
2007
Bridge Chase
2007
Bullet Run
2007
City Harbor
2007
Combat Crawler X2
2007
Combine Harvester
2007
Crab Crusher
2007
Cyclone Defender
2007
Deep Sea Treasure Hunter
2007
ETX Alien Mothership Assault
2007
Ferrari 599 GTB Fiorano 1:10
2007
Ferris Wheel
2007
Fight for the Golden Tower
2007
Fire Hovercraft
2007
Heavy Hauler
2007
Hydraxon
2007
Imperial Landing Craft
2007
MB-01 Eagle Command Base
2007
MX-71 Recon Dropship
2007
Maxilos and Spinax
2007
Millennium Falcon
2007
Monster Dino
2007
Motorized Bulldozer
2007
Night Blazer
2007
Nitro Muscle
2007
Nocturn
2007
Off Road Power
2007
Off Road Truck
2007
Piraka & Catapult
2007
Republic Cruiser (Limited Edition - with R2-R7)
2007
Rough Terrain Crane
2007
Service Station
2007
Skeleton Ship Attack
2007
Skeleton Tower
2007
TIE Crawler
2007
Toa Mahri Hewkii
2007
Toa Undersea Attack
2007
Tow Trasher
2007
Trade Federation MTT
2007
Wheel Loader
2007
Y-wing Fighter
2007
Air Temple
2006
Airport
2006
Arkham Asylum
2006
Army of Vikings with Heavy Artillery Wagon
2006
Axonn
2006
B-wing Fighter
2006
Brutaka
2006
Building Crane
2006
Crawler Crane
2006
![Education Resource Set [NXT Supplemental Set]](https://cdn.rebrickable.com/media/thumbs/sets/9648-1.jpg/180x180p.jpg)
Education Resource Set [NXT Supplemental Set]
2006
Ferrari F1 Racer 1:8
2006
Fire Truck
2006
Fire Vulture
2006
Gargoyle Bridge
2006
Gate Assault
2006
Grand Titan
2006
Imperial Star Destroyer
2006
Jabba's Sail Barge
2006
King Jayko
2006
Lava Chamber Gate
2006
Mindstorms NXT
2006
Mini Tractor
2006
Mobile Defense Tank
2006
Motion Power
2006
Motor Box
2006
NANO QUEST Challenge Kit
2006
Nitro Intimidator
2006
Piraka Outpost
2006
Quad Bike
2006
Race for the Mask of Life
2006
Revvin' Riders
2006
Roaring Roadsters
2006
Science & Technology Base Set
2006
Sentai Fortress
2006
Sir Adric
2006
Slave I
2006
Sonic Phantom
2006
Stealth Hunter
2006
Striking Venom
2006
Supernova
2006
Telehandler
2006
The Batcave: The Penguin and Mr. Freeze's Invasion
2006
The Batmobile Ultimate Collectors' Edition
2006
The Batwing: The Joker's Aerial Assault
2006
Thunder Fury
2006
Tow Truck
2006
Tractor
2006
Tuner Garage
2006
Ultimate Accessory Set 500
2006
Umbra
2006
Vezon & Fenrakk
2006
Viking Double Catapult versus the Armored Ofnir Dragon
2006
X-wing Fighter
2006
ARC-170 Starfighter
2005
Battle of Metru Nui
2005
Buzz Saw
2005
Dark Fortress Landing
2005
Death Star II
2005
Dino Air Tracker
2005
Dino Track Transport
2005
Dump Truck
2005
Enzo Ferrari 1:10
2005
Excavator
2005
Forklift
2005
Harry and the Hungarian Horntail
2005
Iron Predator vs. T-Rex
2005
Jumping Giant
2005
Keetongu
2005
King's Siege Tower
2005
Knights' Attack Barge
2005
Mobile Crane
2005
Nitro Menace
2005
OCEAN ODYSSEY Challenge Kit
2005
ROBOLAB Amusement Park Set
2005
Rescue from the Merpeople
2005
Robo Platoon
2005
Roodaka
2005
Street Bike
2005
T-1 Typhoon vs. T-Rex
2005
The Shadowed One (LEGO Club Members Exclusive)
2005
Toa Iruini
2005
Toa Norik
2005
Tower of Toa
2005
Ultimate Creatures Accessory Set
2005
Ultimate Lightsaber Duel
2005
Viking Ship challenges the Midgard Serpent
2005
Visorak Battle Ram
2005
Visorak's Gate
2005
Vladek's Dark Fortress
2005
Wookiee Attack
2005
Wookiee Catamaran
2005
4WD
2004
Aircraft
2004
Citadel of Orlan
2004
Cool Movers
2004
Ferrari F1 Racer 1:10
2004
Front End Loader
2004
Front-End Loader Black Box
2004
Hogwarts Castle
2004
Ice Blade
2004
Krekka
2004
Mobile Command Center
2004
NHL Championship Challenge
2004
NHL Street Hockey
2004
No Limits Challenge Kit
2004
Ogel's Mountain Fortress
2004
Rescue Chopper
2004
Special Elements For Mechanical Engineering Set
2004
Toa Vakama
2004
Toa Vakama - 2004 San Diego Comic-Con Exclusive
2004
Truck
2004
Tundra Tracker
2004
X-wing Fighter
2004
X-wing Fighter
2004
X-wing Fighter
2004
Y-wing Attack Starfighter
2004
AT-TE
2003
Air Blazers
2003
Backhoe Loader
2003
Baja Desert Racers
2003
Cross Axles
2003
Dumper
2003
Emperor's Ship
2003
Front End Loader
2003
Game Set
2003
Grand Central Station
2003
Green Car Set
2003
Guurahk
2003
Guurahk - With Shadow Kraata
2003
Guurahk - With mini CD-ROM
2003
Hailfire Droid
2003
Jaller and Gukko
2003
Kurahk
2003
Kurahk - With Shadow Kraata
2003
Kurahk - With mini CD-ROM
2003
Lerahk
2003
Lerahk - With Shadow Kraata
2003
Lerahk - With mini CD-ROM
2003
MISSION MARS Challenge Kit
2003
Makuta
2003
Mars Exploration
2003
Mars Exploration Rover
2003
Mission to Mars
2003
Multi-Challenge Race Track
2003
NBA Challenge
2003
NBA Jam Session Co-Pack
2003
NBA Ultimate Arena
2003
Panrahk
2003
Panrahk - With Shadow Kraata
2003
Panrahk - With mini CD-ROM
2003
Pneumatic Crane Truck
2003
Puck Feeder
2003
![ROBOLAB Team Challenge Set Version 2.5 [USB]](https://cdn.rebrickable.com/media/thumbs/sets/9794-1.jpg/180x180p.jpg)
ROBOLAB Team Challenge Set Version 2.5 [USB]
2003
Record and Play
2003
Renewable Energy Set II
2003
Rescue Truck
2003
Robo Technology Set (Serial Cable)
2003
![Robo Technology Set [USB Cable]](https://cdn.rebrickable.com/media/thumbs/sets/9786-1.jpg/180x180p.jpg)
Robo Technology Set [USB Cable]
2003
Sea Riders
2003
Slammer Rhino
2003
Space Shuttle Discovery
2003
Supersonic RC
2003
Takanuva
2003
Takua and Pewku
2003
Technology Resource Set
2003
Temple of Mount Everest
2003
Tuneable Racer
2003
Turahk
2003
Turahk - With Shadow Kraata
2003
Turahk - With mini CD-ROM
2003
Ultimate Defense
2003
Vorahk
2003
Vorahk - With Shadow Kraata
2003
Vorahk - With mini CD-ROM
2003
Wild Windup
2003
Wright Flyer
2003
X-wing Fighter
2003
X-wing Fighter & TIE Advanced
2003
Alpha Team Command Sub
2002
Axle Extenders (Pack of 50) {Axle Joiners}
2002
Boxor
2002
Cahdok and Gahdok
2002
City Sights Challenge Kit
2002
Crane Truck
2002
Darth Vader
2002
Exo-Toa
2002
Gigamesh G60
2002
Helicopter
2002
Motorbike
2002
Nitro Race Team
2002
Off Road Race Track
2002
Quidditch Practice
2002
R2-D2
2002
ROBOLAB Amusement Park Set
2002
![ROBOLAB Team Challenge Set Version 2.5 [Serial Transmitter]](https://cdn.rebrickable.com/media/thumbs/sets/9793-1.jpg/180x180p.jpg)
ROBOLAB Team Challenge Set Version 2.5 [Serial Transmitter]
2002
Racers Picture Frame
2002
Republic Gunship
2002
Scary Laboratory
2002
Shadowstrike S70
2002
Snaptrax S45
2002
Spin & Shoot
2002
Street 'n' Mud Racer
2002
Stunt Race Track
2002
Super Battle Droid
2002
Team Challenge Upgrade Kit
2002
Technojaw T55
2002
Vampire's Crypt
2002
Williams F1 Team Racer
2002
4x4 Off Roader
2001
ARCTIC IMPACT Challenge Kit
2001
Battle Cars
2001
C-3PO
2001
Car Stunt Studio
2001
Extreme Off-Roader
2001
Forklift Truck
2001
Lewa
2001
Lewa - With mini CD-ROM
2001
Manas
2001
Mechanical Engineering Set
2001
Movie Backdrop Studio
2001
Muaka and Kane-ra
2001
Nui-Rama
2001
Pneumatic Front End Loader
2001
ROBOLAB Intelligent House Building Set
2001
Robotics Invention System, Version 2.0
2001
Slammer Stunt Bike
2001
Slammer Turbo
2001
Stormtrooper
2001
Tarakava
2001
Ultimate Builders Set
2001
4WD X-Track
2000
Battle Droid
2000
Chassis Pack
2000
Cities and Transportation
2000
Create 'n' Race - Master Builders
2000
Dark Side Developer Kit
2000
Destroyer Droid
2000
Dirt Bike
2000
Duel Bikes
2000
Dust
2000
Ice Explorer
2000
Millennium/Millennia
2000
Mission Experience Pack
2000
Pit Droid
2000
Pneumatic Pack
2000
Power
2000
Power Bike
2000
Power Puller
2000
Silver Champion
2000
Slammer Dragsters / Dueling Dragsters
2000
Slammer Racer / Formula Force
2000
Styling Pack
2000
Swamp
2000
The Boss
2000
Turbo Racer
2000
![Vision Command [RCX Digital Colour Camera]](https://cdn.rebrickable.com/media/thumbs/sets/9731-1.jpg/180x180p.jpg)
Vision Command [RCX Digital Colour Camera]
2000
White RoboRider (Ice Explorer) (Kabaya Promotional Set)
2000
X-wing Fighter
2000
Air Enforcer / Supercopter
1999
Ant
1999
Beach Buster / Police Car
1999
![Competition Ultra Challenge [aka Cyber Stinger]](https://cdn.rebrickable.com/media/thumbs/sets/8269-1.jpg/180x180p.jpg)
Competition Ultra Challenge [aka Cyber Stinger]
1999
Crane Truck
1999
Droid Developer Kit
1999
Energy Work, Power Starter Set
1999
Exploration Mars
1999
Fire Helicopter
1999
Freight Loading Station
1999
Indy Storm / Formula 1 Racer
1999
ROBOLAB Amusement Park Set
1999
ROBOLAB Team Challenge Set (Serial)
1999
Rescue Bike
1999
Robotics Discovery Set
1999
Robotics Invention System Upgrade Kit (1.5)
1999
Robotics Invention System, Version 1.5
1999
Scorpion Attack
1999
Super Street Sensation
1999
eLAB Renewable Energy Set
1999
Cross Axles
1998
Cyber Strikers
1998
CyberMaster
1998
CyberMaster
1998
Extreme Creatures
1998
Forklift
1998
Go-Cart
1998
Heli-Transport (Rota-Beast)
1998
Hover Sub
1998
Mag Wheel Master
1998
Power Pack Motor Set
1998
ROBOLAB Starter Building Set
1998
Robot's Revenge
1998
Robotics Invention System, Version 1.0
1998
Sky Flyer I
1998
Spider Slayer
1998
Spyder Slayer
1998
Supersonic Car
1998
The Wasp
1998
Tow Truck
1998
Turbo Command Featuring CD-ROM Experience Expander
1998
Aqua Dozer
1997
Barcode Multi-Set
1997
Big Foot 4x4
1997
Blast-Off Dragster
1997
Bungee Blaster
1997
Chopper Force
1997
Future Car
1997
Giant Model Set
1997
Hydro Reef Wrecker
1997
Mountain Rambler
1997
Pneumatic Front-End Loader
1997
![Search Sub [No CD]](https://cdn.rebrickable.com/media/thumbs/sets/8250-1.jpg/180x180p.jpg)
Search Sub [No CD]
1997
![Search Sub [with CD]](https://cdn.rebrickable.com/media/thumbs/sets/8299-1.jpg/180x180p.jpg)
Search Sub [with CD]
1997
Tread Trekker
1997
V-TOL
1997
3 In 1 Car / Amphipower
1996
Black Hawk / Sky Stormer
1996
Coastal Cop Buggy / Miami Police Patrol
1996
Convertables
1996
Desert Ranger
1996
Fiber Optic Multi Set / Multi Racer Set (with Fibre Optics)
1996
Flying Time Vessel
1996
Giant Truck
1996
Hydrofoil 7 / Powerboat Columbia
1996
Intelligent House Building Set
1996
Pneumatic Log Loader / Pneumatic Logger
1996
Space Shuttle
1996
Pneumatic Crane Truck / Mobile Crane
1995
Road Rally V / Super Kart
1995