Chrysler 300 2011-present Body Panel & Frame Bolt Torque Specifications
Chrysler 300 2011-present

Chrysler 300 2011-present Body & Frame Bolt Torque Specifications

This page provides detailed torque specifications for various body bolts on the 2011-Present Chrysler 300 (Second Generation). Includes specifications for door, fender, bumper, and other body panels.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

Exterior Body Panels

Torque specifications for bolts securing exterior body panels and trim components.

1

Fender Bolts

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Estimated value. Check specific service manual for exact specifications. Use care when tightening to avoid damaging the fender or body.
2

Bumper Mounting Bolts

M8 x 1.25
Torque Value
18 ft-lbs (25 N·m)
Important Notes
Estimated value. Always refer to the service manual for exact specifications based on the vehicle model and bolt location. Ensure proper bumper alignment prior to tightening.
3

Grille Mounting Bolts

M5 x 0.8
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Estimated value. Be careful not to overtighten these small fasteners, which could damage the grille or mounting points.
4

Headlight Mounting Bolts

M5 x 0.8
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Estimated value. Ensure proper headlight alignment before tightening. Overtightening may cause cracking or damage to the light housing.
5

Taillight Mounting Bolts

M5 x 0.8
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Estimated value. Ensure the taillight is flush with the body panel. Use caution not to overtighten these small fasteners.
6

Side Mirror Mounting Bolts

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Estimated value. Tighten evenly to ensure a secure and stable mirror mounting.

Doors And Closures

Torque specifications for bolts on doors, hood, and trunk/liftgate.

1

Door Hinge Bolts

M8 x 1.25
Torque Value
18 ft-lbs (25 N·m)
Important Notes
Estimated value, may vary based on specific location. Ensure proper door alignment. Improper torque can cause door misalignment or binding.
2

Door Latch Bolts

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Estimated value. Avoid over-tightening, which can cause difficulty in door closing and opening or alignment issues.
3

Hood Hinge Bolts

M8 x 1.25
Torque Value
18 ft-lbs (25 N·m)
Important Notes
Estimated value. Proper torque is crucial for hood alignment and safe operation. Do not overtighten.
4

Hood Latch Bolts

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Estimated value. Ensure latch is properly aligned. Overtightening can cause difficulty in hood operation.
5

Trunk/Liftgate Hinge Bolts

M8 x 1.25
Torque Value
18 ft-lbs (25 N·m)
Important Notes
Estimated value. Improper torque can lead to misalignment and improper operation. Check alignment after tightening.
6

Trunk/Liftgate Latch Bolts

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Estimated value. Proper torque ensures secure and safe closure. Overtightening may cause malfunction.

Interior Components

Torque specifications for interior component mounting bolts.

1

Seat Mounting Bolts

M10 x 1.5
Torque Value
30 ft-lbs (40 N·m)
Important Notes
Estimated value, check service manual for exact values specific to the vehicle model. Critical for safety. Ensure all bolts are properly seated and torqued.
2

Dash Mounting Bolts

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Estimated value. Even torque distribution is important to prevent squeaks and ensure proper fit.
3

Interior Trim Panels/Door Panels/Kick Plates

M5 x 0.8
Torque Value
5 ft-lbs (7 N·m)
Important Notes
Estimated value. Do not overtighten; these are usually self-tapping screws or small bolts.
4

Body Control Module (BCM) Mounting Bolts

M5 x 0.8
Torque Value
5 ft-lbs (7 N·m)
Important Notes
Estimated value. Over-tightening may cause damage to the BCM or its mounting points. Use care when tightening.
5

Door Glass Regulator Bolts

M5 x 0.8
Torque Value
5 ft-lbs (7 N·m)
Important Notes
Estimated value. Use care when tightening these small bolts. Overtightening may cause damage to the mechanism.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Why is using the correct torque specification important for body bolts?

Using the correct torque is critical to ensure the structural integrity of the vehicle. Over-tightening can lead to stripped threads, bolt breakage, or deformation of the body panels. Under-tightening can cause components to loosen over time, leading to rattles, alignment issues, and potential safety hazards. For example, a loose fender bolt might cause the fender to vibrate excessively at high speeds.

Q2

What happens if I over-torque a body bolt?

Over-torquing can stretch or weaken the bolt, leading to potential failure. It can also damage the threads in the receiving component, requiring costly repairs. For example, over-torquing a door hinge bolt could damage the hinge and the door panel, affecting door alignment.

Q3

Do I need to use thread locker on body bolts?

While not always required, thread locker (such as Loctite) is recommended for specific body components that may be subject to vibration or heavy load, especially if the service manual specifies it. For example, bolts securing bumpers or side skirts may benefit from thread locker to prevent loosening over time.

Q4

Can I reuse body bolts?

While many body bolts can be reused, it's best practice to replace bolts if they show signs of damage (stripped threads, corrosion, stretching) or if the service manual recommends replacement. If the bolt has a thread locker compound on it already, its performance may be degraded upon reuse. For example, if you removed a corroded fender bolt during repair, replace it with a new one of the same specification.

Q5

What tools do I need to properly torque body bolts?

You'll need a calibrated torque wrench suitable for the torque range specified in the service manual, along with the correct size sockets and extensions. Using a torque wrench is crucial for achieving the correct tightness; guessing 'tight enough' is not safe or accurate. For example, a 3/8 inch drive torque wrench with a range of 5-80 ft-lbs would be appropriate for many body bolt applications on a Chrysler 300.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

Temperature Effects

Includes: High Heat, Cold Weather, Thermal Cycling

Temperature can significantly impact torque values and fastener behavior

Cold Weather

Effects:
  • Increased material brittleness
  • Higher torque required due to thread contraction
  • Reduced thread lubricant effectiveness
Recommendations:
  • Allow components to warm to room temperature when possible
  • Consider using winter-grade thread lubricants
  • Check torque values more frequently during winter months

Hot Weather

Effects:
  • Thermal expansion of components
  • Decreased friction in threads
  • Accelerated lubricant breakdown
Recommendations:
  • Check torque when components are at normal operating temperature
  • Use temperature-resistant thread lockers
  • Consider re-torquing after heat cycles

Humidity and Corrosion

Covers: Rust Prevention, Salt Exposure, Moisture Control

Moisture and corrosion can affect fastener integrity and torque values

High Humidity

Effects:
  • Accelerated corrosion formation
  • Reduced friction coefficient
  • Potential thread seizing
Prevention:
  • Use corrosion-resistant fasteners
  • Apply appropriate anti-seize compounds
  • Maintain proper protective coatings

Salt Exposure

Effects:
  • Rapid corrosion development
  • Thread damage
  • Seized fasteners
Prevention:
  • Regular underbody washing
  • Use of sacrificial anodes where appropriate
  • Application of protective coatings

Seasonal Maintenance

Spring, Summer, Fall, and Winter maintenance schedules

Spring

  • Inspect for winter damage
  • Clean and protect exposed fasteners
  • Check torque on critical components

Summer

  • Monitor heat-affected components
  • Check expansion-related loosening
  • Inspect cooling system mounts

Fall

  • Prepare for winter conditions
  • Apply corrosion protection
  • Verify all fasteners are properly torqued

Winter

  • More frequent inspection of critical fasteners
  • Check for salt damage
  • Monitor suspension component torque

Related Resources

Tools, service procedures, and technical bulletins

Recommended Tools

Torque Wrench (1/2" Drive)

A calibrated torque wrench is essential for accurately tightening bolts to specified values.

  • Accurate torque readings
  • Click-type or digital readout
Learn more

Socket Set (Metric)

A comprehensive set of metric sockets is necessary to fit various bolt and nut sizes.

  • Wide range of sizes
  • Impact rated (optional)
Learn more

Extension Bars

Extension bars allow for reaching bolts in recessed areas.

  • Various lengths
  • Strong construction
Learn more
Service Procedures

General Body Bolt Torque Procedure

This procedure outlines the general steps for tightening body bolts on a 2011-Present Chrysler 300.

  • Identify the specific bolt and its corresponding torque specification.
  • Select the appropriate socket and extension (if necessary).
  • Thread the bolt in by hand until it's snug.
  • Using a calibrated torque wrench, tighten the bolt to the specified torque value.
  • Verify the torque setting if needed.
View full procedure

Front End Body Panel Removal and Reinstallation

Steps for removal and reinstallation of front end body panels including torque specifications.

  • Disconnect battery ground.
  • Remove the necessary trim and fasteners to access the panels.
  • Carefully detach the body panels.
  • Reinstall panels following the reverse procedure and using proper torque specifications.
View full procedure
Technical Service Bulletins

Revised Torque Specifications for Body Mount Bolts

2015-06-15

This bulletin updates torque specifications for body mount bolts on the 2011-2015 Chrysler 300.

2011-2015

Resolution: Use the new torque specifications listed in the updated service manual.

Body Panel Alignment Concerns

2018-03-20

This bulletin addresses body panel alignment issues related to improper torque on fasteners.

2016-2018

Resolution: Inspect and re-torque all affected panel fasteners to the proper specifications, referencing the service manual.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

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Technical Information
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