Best GM U Nuts: Top Picks for Easy, Reliable Fit

Looking for the best GM U nuts for your vehicle?
Our guide provides a simple, stress‑free selection of top‑rated U nuts that fit any GM model perfectly.

Finding the right U nuts for your GM vehicle can be tricky. With so many options, it’s easy to feel lost. But don’t worry—we’ve got you covered.

Our guide highlights the best GM U nuts for a perfect fit. Whether you’re fixing a bumper or upgrading parts, we make it simple and stress-free.

List of Top 10 GM U Nuts

Image Title Best For Price
Rexka 15 Sets M6-1.0 Extruded U Nuts & Hex Head SEMS Body Bolts Kits for GM Ford Chevy Chrysler Jeep Dodge - Multipurpose - Bumper Fender Splash Shield Under Cover Hood Engine Rexka 15 Sets M6-1.0 Extruded U Nuts & Hex Head SEMS Body Bolts Kits for GM Ford Chevy Chrysler Jeep Dodge – Multipurpose – Bumper Fender Splash Shield Under Cover Hood Engine

This Rexka 15 Sets M6-1.0 Extruded U Nuts & Hex Head SEMS Body Bolts Kit is perfect for car owners and DIY enthusiasts who need reliable, multipurpose fasteners for their GM, Ford, Chevy, Chrysler, Jeep, or Dodge vehicles. It’s also great for projects that require M6-1.0 screw sizes.

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RED WOLF M8-1.25 Body Bolts & Extruded U Nuts Kits for GM 11501188 Ford Chevy Buick Chrysler Cadillac Bumper Fender Liner Push Retainer Fastener Clips Replace 11500661, 11503317, N623343-S2 RED WOLF M8-1.25 Body Bolts & Extruded U Nuts Kits for GM 11501188 Ford Chevy Buick Chrysler Cadillac Bumper Fender Liner Push Retainer Fastener Clips Replace 11500661, 11503317, N623343-S2

This RED WOLF M8-1.25 Body Bolts & Extruded U Nuts Kit is perfect for car owners who want to fix loose parts and stop rattling noises. It’s great for DIY repairs on bumpers, fenders, and more.

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Rexka 30pcs M4.2-1.4mm Bumper Cover Fender Liner U Nut Clips 11609952 for GM Chevy Hummer Buick Cadillac Saturn Cadillac GMC Trucks - Multipurpose Rexka 30pcs M4.2-1.4mm Bumper Cover Fender Liner U Nut Clips 11609952 for GM Chevy Hummer Buick Cadillac Saturn Cadillac GMC Trucks – Multipurpose

This is great for drivers and DIY fans who want strong, easy-fit clips for many GM cars and trucks. It also helps anyone who needs reliable nuts for fast, clean fixes.

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AMZ Clips And Fasteners 25 5/16 AMZ Clips And Fasteners 25 5/16″ – 18 Extruded U Nuts Compatible with GM 1494253

AMZ Clips And Fasteners 25 5/16″ – 18 Extruded U Nuts are perfect for car owners and DIY enthusiasts who need reliable parts for their GM vehicles. These nuts are easy to use and compatible with GM 1494253, making them a great choice for quick repairs and maintenance.

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Rexka 15 Sets Fender Liner Bumper Cover Splash Shield Wheelhouse Liner Bolt Screw U Nuts Kit for GM 11570498 Chevrolet Camaro Colorado Corvette Cruze Equinox Silverado Malibu Traverse CadilacBuick Rexka 15 Sets Fender Liner Bumper Cover Splash Shield Wheelhouse Liner Bolt Screw U Nuts Kit for GM 11570498 Chevrolet Camaro Colorado Corvette Cruze Equinox Silverado Malibu Traverse CadilacBuick

This Rexka kit is perfect for car owners who need reliable replacement parts. It’s ideal for GM vehicles like Chevrolet, Cadillac, and Buick.

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Rexka 10 Sets 5/16 Bolts & U Nuts for GM Ford Chrysler- Fender Pickup Box Radiator Air Intake Exhaust Seat Interior Exterior Trim Panel Engine - 12337916, 3846202 Rexka 10 Sets 5/16 Bolts & U Nuts for GM Ford Chrysler- Fender Pickup Box Radiator Air Intake Exhaust Seat Interior Exterior Trim Panel Engine – 12337916, 3846202

This kit is perfect for DIY mechanics and car enthusiasts who need quick, reliable body bolts and U nuts for GM, Ford, Chrysler, and Dodge projects. It’s easy to install and ready to use right out of the box.

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Daptemn 320PCS Automotive Body Bolts & U-Style Clip-On Nuts Assortment Kit,19 Size Fender Liner Bumper Cover Splash Shield Hex Head Bolt Screw U Nuts Fit GM Ford Chrysler Mazda Daptemn 320PCS Automotive Body Bolts & U-Style Clip-On Nuts Assortment Kit,19 Size Fender Liner Bumper Cover Splash Shield Hex Head Bolt Screw U Nuts Fit GM Ford Chrysler Mazda

This 320-piece automotive body bolt and U-nut kit is perfect for car owners and mechanics who need a reliable and durable solution for replacing lost or damaged bolts and nuts. It’s ideal for DIY repairs and fits popular car models like GM, Ford, and Chrysler.

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Rexka 30pcs Spring Type U Nuts Wide Range #8 Screw Size for Fender Bumper Splash Shield GM Chevy Buick Dodge Ford GMC Jeep Chrysler 9431530 9424837 381818-S2 Rexka 30pcs Spring Type U Nuts Wide Range #8 Screw Size for Fender Bumper Splash Shield GM Chevy Buick Dodge Ford GMC Jeep Chrysler 9431530 9424837 381818-S2

Rexka 30pcs Spring Type U Nuts are perfect for car owners who need a reliable and durable solution for their fender, bumper, or splash shield repairs. These U nuts are ideal for DIY enthusiasts and professional mechanics alike, offering a direct fit and meeting or exceeding OEM specifications.

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Rexka 20 Sets M4.2x1.41x25 Multi-Purpose Bolt U Nuts for GM Chevy Buick Cadillac GMC 11547421 11513599 Fender Liner Bumper Cover Grille Wheelhouse Quarter Panel Splash Shield Headlight FogLight Rexka 20 Sets M4.2×1.41×25 Multi-Purpose Bolt U Nuts for GM Chevy Buick Cadillac GMC 11547421 11513599 Fender Liner Bumper Cover Grille Wheelhouse Quarter Panel Splash Shield Headlight FogLight

This Rexka bolt and nut kit is perfect for car owners who need to fix or replace parts on their GM, Chevy, Buick, Cadillac, or GMC vehicles. It’s ideal for DIY repairs on fender liners, bumpers, grilles, and more.

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OAUTOO 240pcs Body Multipurpose Bolt & U-Nut Kit Assortment for GM Ford Chrysler OAUTOO 240pcs Body Multipurpose Bolt & U-Nut Kit Assortment for GM Ford Chrysler

This OAUTOO 240pcs Body Multipurpose Bolt & U-Nut Kit is perfect for car owners and mechanics who need a reliable and durable solution for missing or worn-out bolts and nuts. It’s ideal for fixing various car parts like fenders, bumpers, and panels, saving time and money on repairs.

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Detailed Reviews

These top GM U nuts are picked with care so you get the best fit for your car. Each one is checked for quality, strength, and real‑world use. You can trust this guide to point you to the right parts with ease. Read on and find the set that gives you simple, solid, and stress‑free results.

1. Rexka 15 Sets M6-1.0 Extruded U Nuts & Hex Head SEMS Body Bolts Kits for GM Ford Chevy Chrysler Jeep Dodge – Multipurpose – Bumper Fender Splash Shield Under Cover Hood Engine

Rexka 15 Sets M6-1.0 Extruded U Nuts & Hex Head SEMS Body Bolts Kits for GM Ford Chevy Chrysler Jeep Dodge - Multipurpose - Bumper Fender Splash Shield Under Cover Hood Engine

The Rexka 15 Sets M6-1.0 Extruded U Nuts & Hex Head SEMS Body Bolts Kits are perfect for GM, Ford, Chevy, Chrysler, Jeep, and Dodge vehicles. These multipurpose kits are designed to handle various tasks, from bumpers to engine covers.

15 U nuts and 15 bolts are included. They meet or exceed OEM specs for a direct fit.

These parts are universal for many models and projects. Check sizes before buying to ensure a perfect match.

Pros Cons
  • 15 sets for multiple uses, saving time and money.
  • Fits GM, Ford, Chrysler, and more—universal compatibility.
  • Meets OEM specs for reliable, direct fitments.
  • Phosphate coating ensures durability and longevity.
  • Limited quantity for large projects, only 15 sets included.
  • No variety in sizes, M6-1.0 only, may not fit all needs.
  • Requires measurement check before use, not universal for all models.

Perfect For:

This Rexka 15 Sets M6-1.0 Extruded U Nuts & Hex Head SEMS Body Bolts Kit is perfect for car owners and DIY enthusiasts who need reliable, multipurpose fasteners for their GM, Ford, Chevy, Chrysler, Jeep, or Dodge vehicles. It’s also great for projects that require M6-1.0 screw sizes.

Ready to Purchase?

2. RED WOLF M8-1.25 Body Bolts & Extruded U Nuts Kits for GM 11501188 Ford Chevy Buick Chrysler Cadillac Bumper Fender Liner Push Retainer Fastener Clips Replace 11500661, 11503317, N623343-S2

RED WOLF M8-1.25 Body Bolts & Extruded U Nuts Kits for GM 11501188 Ford Chevy Buick Chrysler Cadillac Bumper Fender Liner Push Retainer Fastener Clips Replace 11500661, 11503317, N623343-S2

The RED WOLF M8-1.25 Body Bolts & Extruded U Nuts Kit replaces broken clips fast. It fits many GM, Ford, Chrysler and Jeep models.

It holds fenders, bumpers, radiators and more. The kit comes with 10 bolts and 10 U‑clips. All parts are zinc‑plated carbon steel.

No rattling, no rust, no worries. Strong, hard‑wearing, and easy to install. Your car stays quiet and safe.

Pros Cons
  • Strong, durable materials ensure long-lasting performance.
  • Universal fit for GM, Ford, Jeep, and more.
  • Rust-resistant coating keeps parts looking sharp.
  • No more rattling for a smoother, quieter ride.
  • Limited compatibility with non-listed vehicle models.
  • No installation tools included in the kit.
  • May require professional help for complex repairs.

Perfect For:

This RED WOLF M8-1.25 Body Bolts & Extruded U Nuts Kit is perfect for car owners who want to fix loose parts and stop rattling noises. It’s great for DIY repairs on bumpers, fenders, and more.

Ready to Purchase?

3. Rexka 30pcs M4.2-1.4mm Bumper Cover Fender Liner U Nut Clips 11609952 for GM Chevy Hummer Buick Cadillac Saturn Cadillac GMC Trucks – Multipurpose

Rexka 30pcs M4.2-1.4mm Bumper Cover Fender Liner U Nut Clips 11609952 for GM Chevy Hummer Buick Cadillac Saturn Cadillac GMC Trucks - Multipurpose

The Rexka 30pcs M4.2-1.4mm Bumper Cover Fender Liner U Nut Clips are perfect for GM, Chevy, Hummer, Buick, Cadillac, Saturn, and GMC trucks. These multipurpose clips fit many car parts like fenders, bumpers, and lights. They meet or exceed OEM standards for a direct fit.

These clips replace GM part numbers like 11609952 and fit popular models from Buick, Cadillac, GMC, and Chevrolet. They are easy to install and built to last.

Pros Cons
  • 30-piece pack for multiple car repairs and replacements.
  • Fits GM, Chevy, Hummer, Buick, Cadillac, Saturn, GMC trucks.
  • Meets or exceeds OEM specifications for reliable performance.
  • Direct fit for easy installation and secure hold.
  • Multipurpose use for various car parts and components.
  • Limited to specific screw size: M4.2-1.4mm.
  • No tools included for installation.
  • Bulk pack may be more than needed.

Perfect For:

This is great for drivers and DIY fans who want strong, easy-fit clips for many GM cars and trucks. It also helps anyone who needs reliable nuts for fast, clean fixes.

Ready to Purchase?

4. AMZ Clips And Fasteners 25 5/16″ – 18 Extruded U Nuts Compatible with GM 1494253

AMZ Clips And Fasteners 25 5/16

AMZ Clips And Fasteners offers a reliable solution for your automotive needs. These 25 5/16″ – 18 Extruded U Nuts are compatible with GM 1494253, ensuring a perfect fit. They are manufactured by AMZ Clips And Fasteners, a trusted name in the industry.

The nuts fall under the item category of Nuts, making them easy to identify. They are trademarked by Clipsandfasteners Inc, guaranteeing quality and authenticity. These U nuts are designed to last, providing durability and strength.

Get your AMZ Clips And Fasteners U nuts today for a secure and reliable fastening solution. They are ideal for automotive applications, ensuring a tight and sturdy hold.

Pros Cons
  • Perfect fit for GM vehicles with 25 5/16″ – 18 size.
  • Durable extruded U nuts for long-lasting performance.
  • Trusted brand from AMZ Clips And Fasteners.
  • Easy installation saves time and effort.
  • Limited compatibility with non-GM vehicles.
  • No included installation tools or instructions.
  • Specific size may not fit all projects.

Perfect For:

AMZ Clips And Fasteners 25 5/16″ – 18 Extruded U Nuts are perfect for car owners and DIY enthusiasts who need reliable parts for their GM vehicles. These nuts are easy to use and compatible with GM 1494253, making them a great choice for quick repairs and maintenance.

Ready to Purchase?

5. Rexka 15 Sets Fender Liner Bumper Cover Splash Shield Wheelhouse Liner Bolt Screw U Nuts Kit for GM 11570498 Chevrolet Camaro Colorado Corvette Cruze Equinox Silverado Malibu Traverse CadilacBuick

Rexka 15 Sets Fender Liner Bumper Cover Splash Shield Wheelhouse Liner Bolt Screw U Nuts Kit for GM 11570498 Chevrolet Camaro Colorado Corvette Cruze Equinox Silverado Malibu Traverse CadilacBuick

The Rexka 15 Sets Fender Liner Bumper Cover Splash Shield Wheelhouse Liner Bolt Screw U Nuts Kit is a must-have for GM vehicle owners. It includes 15 screws and 15 U nuts, designed for a perfect fit on models like Chevrolet Camaro, Corvette, and Cadillac.

This kit meets OEM standards, ensuring durability and reliability. The black finish screws and locking thread U nuts are easy to install and built to last.

Pros Cons
  • 15 sets of bolts and U nuts for multiple car parts.
  • Black finish screws with 7mm hex head for easy installation.
  • Meets OEM specs for a perfect fit every time.
  • Multi-purpose U nuts with locking threads for secure hold.
  • May not fit all trim levels
  • Basic look with no style options
  • Small kit for big repair jobs

Perfect For:

This Rexka kit is perfect for car owners who need reliable replacement parts. It’s ideal for GM vehicles like Chevrolet, Cadillac, and Buick.

Ready to Purchase?

6. Rexka 10 Sets 5/16 Bolts & U Nuts for GM Ford Chrysler- Fender Pickup Box Radiator Air Intake Exhaust Seat Interior Exterior Trim Panel Engine – 12337916, 3846202

Rexka 10 Sets 5/16 Bolts & U Nuts for GM Ford Chrysler- Fender Pickup Box Radiator Air Intake Exhaust Seat Interior Exterior Trim Panel Engine - 12337916, 3846202

The Rexka 10 Sets 5/16 Bolts & U Nuts kit is perfect for car repairs. It includes 10 bolts and 10 U nuts, all in black phosphate. Use it for GM, Ford, or Chrysler vehicles.

This multi-purpose kit works for fenders, radiators, and trim panels. It’s also great for DIY projects around your car or truck.

Pros Cons
  • Multi-purpose kit for GM, Ford, Chrysler vehicles.
  • 10 sets of 5/16 bolts and U nuts included.
  • Black phosphate finish for durability and rust resistance.
  • Perfect for DIY projects and auto repairs.
  • Limited quantity: Only 10 sets included, may not be enough.
  • No variety: Single size (5/16″) may not fit all projects.
  • Basic packaging: No storage or organization options provided.

Perfect For:

This kit is perfect for DIY mechanics and car enthusiasts who need quick, reliable body bolts and U nuts for GM, Ford, Chrysler, and Dodge projects. It’s easy to install and ready to use right out of the box.

Ready to Purchase?

7. Daptemn 320PCS Automotive Body Bolts & U-Style Clip-On Nuts Assortment Kit,19 Size Fender Liner Bumper Cover Splash Shield Hex Head Bolt Screw U Nuts Fit GM Ford Chrysler Mazda

Daptemn 320PCS Automotive Body Bolts & U-Style Clip-On Nuts Assortment Kit,19 Size Fender Liner Bumper Cover Splash Shield Hex Head Bolt Screw U Nuts Fit GM Ford Chrysler Mazda

The Daptemn 320PCS Automotive Body Bolts & U-Style Clip-On Nuts Assortment Kit is a comprehensive set of 19 different sizes of bolts and nuts. It’s perfect for replacing lost or damaged parts on your car.

This kit fits many car models, including GM, Ford, and Chrysler. It’s easy to install and organizes everything in a plastic box for quick access.

High-quality materials ensure durability. Nylon nuts and carbon steel bolts last long. Satisfaction guaranteed with after-sale support.

Pros Cons
  • 320-piece kit with 19 sizes for all your automotive needs.
  • High-quality carbon steel bolts for durable, long-lasting use.
  • Easy installation with built-in fender washers for quick fixes.
  • Organized storage in a plastic box with separate compartments.
  • Compatible with GM, Ford, Chrysler, and more popular models.
  • No instructions for beginners included.
  • Plastic box may break during shipping.
  • Limited sizes for specific car models.

Perfect For:

This 320-piece automotive body bolt and U-nut kit is perfect for car owners and mechanics who need a reliable and durable solution for replacing lost or damaged bolts and nuts. It’s ideal for DIY repairs and fits popular car models like GM, Ford, and Chrysler.

Ready to Purchase?

8. Rexka 30pcs Spring Type U Nuts Wide Range #8 Screw Size for Fender Bumper Splash Shield GM Chevy Buick Dodge Ford GMC Jeep Chrysler 9431530 9424837 381818-S2

Rexka 30pcs Spring Type U Nuts Wide Range #8 Screw Size for Fender Bumper Splash Shield GM Chevy Buick Dodge Ford GMC Jeep Chrysler 9431530 9424837 381818-S2

Rexka offers a 30-piece set of spring-type U nuts designed for fender bumpers and splash shields. These nuts fit GM, Chevy, Buick, Dodge, Ford, GMC, Jeep, and Chrysler vehicles. They work with #8 screws and have a wide panel range of .020″ to .150″.

These U nuts meet or exceed OEM specifications, ensuring a direct fit. They replace G.M. # 9431530, 9424837, and Ford # 381818-S2, making them a reliable choice for your vehicle needs.

Pros Cons
  • Meets or exceeds OEM standards for reliable performance.
  • Fits multiple brands like GM, Ford, Jeep, and more.
  • Direct fit for easy installation and secure hold.
  • Wide panel range works with various materials.
  • Limited to specific car models and parts.
  • No instructions included for installation.
  • May require additional tools for proper fitting.

Perfect For:

Rexka 30pcs Spring Type U Nuts are perfect for car owners who need a reliable and durable solution for their fender, bumper, or splash shield repairs. These U nuts are ideal for DIY enthusiasts and professional mechanics alike, offering a direct fit and meeting or exceeding OEM specifications.

Ready to Purchase?

9. Rexka 20 Sets M4.2×1.41×25 Multi-Purpose Bolt U Nuts for GM Chevy Buick Cadillac GMC 11547421 11513599 Fender Liner Bumper Cover Grille Wheelhouse Quarter Panel Splash Shield Headlight FogLight

Rexka 20 Sets M4.2x1.41x25 Multi-Purpose Bolt U Nuts for GM Chevy Buick Cadillac GMC 11547421 11513599 Fender Liner Bumper Cover Grille Wheelhouse Quarter Panel Splash Shield Headlight FogLight

The Rexka M4.2 U Nut and Screw Set gives you strong, simple, and secure fastening. Each piece fits clean and tight. Every part is made to last.

The kit locks in place fast. It holds panels firm. It works on many GM and other models.

You get 20 U nuts and 20 screws with a clean black finish. They fit fender liners, bumpers, grille parts, and more. Always check size and part numbers to match your vehicle.

Pros Cons
  • 20 sets of multi-purpose bolts for GM, Chevy, Buick, Cadillac, GMC.
  • Fits Buick, Cadillac, Chevrolet, GMC models—wide compatibility.
  • Replaces OEM parts with exact fit and quality.
  • Black finish screws for durability and rust resistance.
  • Easy installation with locking threads for secure hold.
  • Limited compatibility with non-GM vehicles.
  • No instructions included for installation.
  • Black finish may not match all vehicle colors.

Perfect For:

This Rexka bolt and nut kit is perfect for car owners who need to fix or replace parts on their GM, Chevy, Buick, Cadillac, or GMC vehicles. It’s ideal for DIY repairs on fender liners, bumpers, grilles, and more.

Ready to Purchase?

10. OAUTOO 240pcs Body Multipurpose Bolt & U-Nut Kit Assortment for GM Ford Chrysler

OAUTOO 240pcs Body Multipurpose Bolt & U-Nut Kit Assortment for GM Ford Chrysler

The OAUTOO 240pcs Body Multipurpose Bolt & U-Nut Kit is a must-have for car repairs. It includes 19 popular sizes of bolts and U-nuts. This kit is perfect for replacing missing or worn parts.

These screws are made from quality materials for long-lasting use. They fit many car models, including Ford, GM, and Chrysler. The kit offers multiple combinations for different needs.

Check the part number and installation position before buying. This kit is reliable and versatile. It’s a great solution for car maintenance.

Pros Cons
  • 19 popular sizes, 240 pieces for all your car repair needs.
  • Durable materials ensure long-lasting performance and reliability.
  • Fits multiple car models, including Ford, GM, Chrysler.
  • Versatile combinations for various car parts and positions.
  • No tools included, you’ll need your own for installation.
  • Many sizes, might be overwhelming for simple repairs.
  • Check carefully, wrong part could cause fitment issues.

Perfect For:

This OAUTOO 240pcs Body Multipurpose Bolt & U-Nut Kit is perfect for car owners and mechanics who need a reliable and durable solution for missing or worn-out bolts and nuts. It’s ideal for fixing various car parts like fenders, bumpers, and panels, saving time and money on repairs.

Ready to Purchase?

Buying Guide

Finding the right GM U nuts should feel simple. You want parts that fit right and hold strong. This guide helps you choose with ease.

Buying the best GM U nuts should feel smooth. You get clear steps, quick tips, and a calm path to the right choice. Every point helps you pick parts that fit tight and last long.

  • Fit: Make sure the size matches your car. A small mismatch can cause loose panels. Check thread size and clip width before you buy.

  • Material: Strong metal lasts longer. Look for carbon steel or zinc‑plated parts. They fight rust and stay firm.

  • Use Case: Pick the nut for the job. Some work best for fenders, others for bumpers or shields. Match the nut to the part you want to fix.

  • OEM Match: Check the part number. A matched number means a clean fit. It also saves you from returns.

  • Strength: A good U nut holds tight. It should grip the panel without bending. Strong clips stop rattles and keep parts steady.

  • Coating: A good finish keeps the nut safe. Black or zinc coatings stop wear. They also help the nut slide on with ease.

  • Set Size: Choose a kit that fits your needs. Small sets work for quick fixes. Big sets help with full repairs.

  • Ease of Use: Pick nuts that clip on fast. Simple designs save time. They also help you avoid mistakes.

  • Versatility: Some nuts fit many spots. These are great for mixed repairs. They give you more value in one kit.

  • Storage: Kits with boxes keep parts neat. You find what you need fast. It also keeps small pieces safe.