Item Condition: New
Horizon Matrix Smooth Fitness Treadmill Nylon Locking Nut M12X1.75P 004945-00
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Item Description
Condition : New
Part #: 004945-00
Updated List 2026
This nylon locking nut is designed for compatible Matrix Fitness treadmills and strength equipment systems. Featuring an M12X1.75P thread design, it helps provide secure fastening support for equipment assembly and maintenance applications. The locking structure helps maintain stable hardware connections in commercial fitness environments where consistent machine performance is important.
Key Features
Secure Locking Design
The nylon insert helps reduce loosening caused by vibration and repeated equipment movement during operation.
Commercial Equipment Compatibility
Designed for use on compatible treadmills, strength systems, and multi-station gym equipment.
Reliable Replacement Component
Supports equipment maintenance by helping restore secure fastening performance for worn or damaged hardware.
Versatile Fitness Equipment Use
Suitable for commercial gym maintenance applications involving cardio and strength training equipment.
Specifications
- Product Type: Nylon Locking Nut
- Thread Size: M12X1.75P
- Usage: Equipment Fastening Component
- Design Type: Locking Nut with Nylon Insert
Compatibility
Compatible with select Matrix Fitness equipment including:
- G7-S22 Pec Fly / Rear Delt | G7GM125 | 2018
- G2-MS20 Cable Crossover | 2005
- G2-MS40 4-Stack | 2005
- G2-MS50 5-Stack | 2005
- G3-S10 Chest Press | 2008
- G3-S70 Leg Press | 2008
- T62 TM157 | 2006
- T63 TM158 | 2006
- T64 TM159 | 2006
- T70 TM177 | 2006
- T71 TM204 | 2007
- T72 TM205 | 2007
- T95 TM202 | 2007
- WT751 TM279 | 2007
- WT950 TM153 | 2006
- WT951 TM286 | 2007
How It Works
The locking nut threads onto compatible bolts or threaded hardware to help secure equipment components in place. The nylon insert helps resist loosening caused by vibration, movement, and repeated machine usage.
Note
Please verify thread size, part number 004945-00, and equipment compatibility before ordering.
Compatibility Notes
- Confirm M12X1.75P thread specification before purchase
- Verify part number compatibility with your equipment
- Designed for select treadmill and strength systems
- Suitable for commercial fit
Used on the following models:
Matrix Fitness
CST4 - TM117 - 2005 G1-MG30 | 3-Stack Multi-Gym | MG30, G1GM167 | GM167K | GM167L | 2010
G1-MG30LS | 3-Stack Multi-Gym | G1-MG30LS | 2010 G2-FW77 | Seated Calf | G2FW77 | 2005
G2-MS20 | Cable Crossover | G2MS20, MS20 | 2005
G2-MS40 | 4-Stack | G2MS40 | 2005
G2-MS50 | 5-Stack | G2MS50 | 2005
G2-MS80 | 8-Stack | G2MS80 | 2005
G2-S10 | Chest Press | G2GM02 | 2005
G2-S70 | Leg Press | G2GM10 | 2005
G3-MS20 | Cable Crossover | G3MS20 | MS20L | MS20P | 2008
G3-MS40 | 4-Stack | G3MS40 | 2008
G3-MS50 | 5-Stack │G3MS50 | 2008
G3-MS80 | 8-Stack | G3MS80 | 2008
G3-S10 | Chest Press | G3GM02 | GM02K | GM02L | 2008
G3-S34 | Diverging Seated Row | G3GM28 | GM28C | GM28K | GM28N | 2008
G3-S70 | Leg Press (Belt) | G3GM10D, G3GM10 | 2008
MX-MS50 | 5-Stack Multi-Station | MS50│2002-2004
MX-S10 | Chest Press | GM02 | 2002-2004
MX-S70 | Leg Press | GM10 | 2002-2004
G3-S70-02 | Leg Press (Cable) | G3GM10B | G3GM10K | G3GM10N | 2011
MG-A41-03 | 3-tier Studio Dumbbell Rack w/ Saddles | FW231 | 2013
3-tier Dumbbell Rack w/Saddles | MG-A42-03 | 2014
3-tier Beauty Bell Rack | MG-A44-03 | 2014
MG-PL71 | Hack Squat | Plate Loaded | PL212 | PL212K | PL212M | 2014
VS-S131 | Multi Press | Versa Dual | GM100, GM100K, GM100L | 2016
G7-S22 | Pec Fly / Rear Delt | G7GM125 | 2018
VY-400-03 | Perfect Squat | PL217 | 2018
T62 | TM157 | 2006
T63 | TM158 | 2006
T64 | TM159 | 2006
T70 | TM177 | 2006
T71 | TM204 | 2007
T72 | TM205 | 2007
T805 | TM121 | 2005
T95 | TM202 | 2007
TSC2 | TM67B | 2003
WT751 | TM279 | 2007
WT950 | TM153 | 2006
WT951 | TM286 | 2007
ST720 | Multi-Press | GM88 | 2007
ST740 | Ab/Low Back | GM81 | 2007
Let customers speak for us
from 1240 reviewsOrdered a part from Hydra Fitness Parts because the OEM part was back ordered for months. Part came in just a couple of days and had it installed by my service tech shortly after. My cross trainer works like new again. Definitely recommend.
Works great perfect fit would buy again
I moved my treadmill from one room to another. I happened to break off a rear foot to it during a difficult spot. It has been like this for 2 years. I decided to look for the part, it was hard to find. But then I found it and jow my treadmill is back together and ready to use
Ordered a part for our treadmill that got lost during a move. Perfect fit! Quick and easy shipping. Would highly recommend if you are looking for odd parts for your Horizon treadmill.
Hydra fit had the part I needed to repair my Bowflex treadmill for only $150. Bowflex techs were telling me I needed a new monitor control for $2,000 but I knew that was wrong because there was no electrical supply to the monitor so it couldn’t be that! Hydrogen gave me a couple ideas I I figured it out. NO thanks Bowflex, and thanks hydro fit.
Used power rods appear to be in good shape and delivery time was very good.
Parts no longer made from my treadmill. Hydra Fitness Exchange had a front roller that works great! Quiet, smooth, almost like new again! Timely shipping, good packaging, helpful website. Thanks!
Product fits perfect. Was able to verify that it would fit my model, and it arrived in a timely fashion. I would order from you guys in the future.
Spirit XE200 elliptical. Common problem of the wheels jumping off and galling the aluminum track rail covers. By the time I fixed the problem, my original track rail covers were too damaged. These were inexpensive and appear to be OEM. Only two bolts to swap them out. Excellent!
Ordered replacement part for my eliptical machine and fit tightly into place and the machine is working fine.
Upon receipt of the item, it would not charge. In working with them I was told to give charging one last shot. This time I pressed the start button multiple times and it started to charge. It synched with my bike. I thanked them for their patience in working out the problem.
The website was easy to use and the product arrived when promised.
We’ve been looking for this part for about 7 years. It fits perfectly. Shipping time was excellent.
Thank you so much!
Product was received on time and fit the description as advertised.
Great value for the price.
