DORMAN/AUTOGRADE 803-520 Cap Screw Hex Head 019495815204 Grade 5 9/16-12

( Brand: Dorman/autograde ), ( Manufacturer Part Number: 803-520 ), ( Warranty: 1 Year Replacement ), ( California Prop 65 Warning: This Product Contains Chemicals Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. ), ( UPC: 019495815204 ), ( Type: Hardware, Fasteners And Fittings )

Review DORMAN/AUTOGRADE Cap Screw hex Head grade 9/16-12 Inch

Introducing the Dorman/Autograde 803-520 Cap Screw, a high-quality fastener designed for automotive and industrial applications. This cap screw features a hex head design with a grade 9.6 (12.9 Grade) strength, making it an ideal choice for securing various components where a high degree of strength is required.

The screw measures 9/16 inches in length and boasts a thread pitch of one turn per inch, ensuring a secure and reliable connection. Its hex head design provides a larger contact surface area compared to traditional slotted or Phillips head screws, making it easier to apply torque evenly and reducing the risk of stripping.

This cap screw is manufactured from high-strength steel, ensuring it can withstand the rigors of automotive and industrial use. Its grade 9.6 strength rating equates to a tensile strength of over 120,000 psi (pounds per square inch), making it suitable for applications where maximum load-bearing capacity is essential.

The Dorman/Autograde 803-520 Cap Screw is an excellent choice for various automotive applications, including engine components, suspension systems, and transmission assemblies. It is also suitable for use in industrial settings, such as machinery components, structural applications, and heavy equipment.

Each screw comes packaged individually, ensuring that they remain protected during transportation and storage. The package includes a zinc coating to provide corrosion resistance, making it ideal for use in harsh environments.

In summary, the Dorman/Autograde 803-520 Cap Screw is a versatile, high-strength fastener suitable for various automotive and industrial applications. Its hex head design, grade 9.6 strength, and thread pitch make it an excellent choice for securing components where maximum load-bearing capacity is required. The zinc coating provides added corrosion resistance, ensuring long-lasting performance.

Dorman/Autograde 803-520 Cap Screw (Hex Head, Grade 9/16-12): A Comprehensive Analysis

The Dorman/Autograde 803-520 cap screw is a hex head, grade 9/16-12 fastener. This type of screw is commonly used in various automotive and industrial applications due to its strength and durability. In this analysis, we will discuss the pros and cons of purchasing this cap screw, followed by a conclusion and recommendation.

1. High Tensile Strength: The grade 9 screws offer a higher tensile strength than their grade 8 counterparts, making them suitable for applications where extra strength is required.

2. Wide Application: These screws can be used in a variety of applications, including automotive suspension systems, engine components, and industrial machinery.

3. Good Corrosion Resistance: The hex head design and zinc coating provide some degree of protection against corrosion, ensuring the screws maintain their functionality over an extended period.

1. Limited Size Availability: The Dorman/Autograde 803-520 cap screw is only available in one specific size (9/16-12), which may not cater to all potential applications.

2. Manual Torque Application: The screws do not come with a torque wrench, and manual application of the appropriate torque value is required to ensure proper installation and function.

3. Potential for Stripping: The hex head design may be susceptible to stripping if not properly installed or if excessive torque is applied.

The Dorman/Autograde 803-520 cap screw is a reliable and strong option for applications where a hex head, grade 9/16-12 screw is required. However, its limited size availability, manual torque application, and potential for stripping may prove inconvenient for some users.

If you are looking for a high-strength cap screw for your specific application and the size (9/16-12) is suitable, the Dorman/Autograde 803-520 cap screw is an excellent choice. However, if you require a different size or prefer a screw with a torque wrench for easier installation, you may want to explore other options. Always ensure proper installation procedures are followed to maximize the lifespan and functionality of the screws.

Details:

part #: 803520 prices

• $26.43-$50.00

specifications toolssupp:

• brand: Dorman/autograde
• mpn: 803-520
• warranty: 1 Year Replacement
• california prop 65 warning: This Product Contains Chemicals Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm.
• upc: 019495815204
• type: Hardware, Fasteners And Fittings

seller toolssupp:

• rating: 99.3%
• # reviews: 129324
• city: Colmar, Pennsylvania

returns toolssupp:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

offer toolssupp:

• started: December 18, 2025
• sold: 0
• options: Ship-to-home
• quantity: 2
• availability: In Stock

shipping toolssupp:

• type: Fixed
• class: Economy, Standard, Expedited, One-day
• transit: 4-9 Days
• service: Economy, Standard, Expedited, Overnight
• cost: $0.00

payments toolssupp:

• wallet: Paypal
• credit card: Diners-club
• other

general toolssupp:

• Motors > Automotive Tools Supplies > Other Auto Tools Supplies
• condition: New

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