DORMAN/AUTOGRADE 459-420 Cap Screw Flanged Hex Head 019495594208 10.9 M8-1.25 20MM

( Brand: Dorman/autograde ), ( Manufacturer Part Number: 459-420 ), ( Manufacturer Warranty: 1 Year ), ( 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: 019495594208 ), ( Type: Hardware, Fasteners And Fittings )

Review DORMAN/AUTOGRADE Cap Screw flanged Hex Head class 10.9 20mm

Introducing the Dorman/Autograde 459-420 Cap Screw, a high-strength fastener engineered for automotive applications. This cap screw features a flanged hex head design, providing a large contact surface area for enhanced torque transfer and improved grip. The hex head shape is ideal for use with sockets and wrenches, ensuring a secure connection during the installation process.

The cap screw is manufactured from Class 10.9 material, which is recognized for its exceptional tensile strength and durability. With a thread pitch of M8 and a thread length of 1.25 inches, this fastener is suitable for a wide range of applications where a strong and reliable connection is essential. The overall length of the cap screw is 20mm, making it suitable for various applications within the automotive industry.

Additionally, the Dorman/Autograde 459-420 Cap Screw boasts a corrosion-resistant finish. This protective coating shields the fastener from the elements, ensuring that it maintains its strength and functionality over time, even in harsh environments. The screw's flanged hex head design also adds an extra layer of protection against rust and corrosion, making it an excellent choice for automotive repair and restoration projects.

This cap screw's precision machining guarantees a perfect fit and reliable thread engagement, ensuring that the installation process is as straightforward and efficient as possible. The Dorman/Autograde 459-420 Cap Screw is an essential component for any automotive repair professional or enthusiast, providing the strength, durability, and reliability required to tackle even the most demanding projects.

A Detailed Analysis of Buying Dorman/Autograde 459-420 Cap Screws

The Dorman/Autograde 459-420 cap screw is a flanged hex head bolt with a class 10.9 rating, an M8 thread, and a length of 20mm. This type of fastener is commonly used in automotive applications. In this analysis, we will discuss the pros and cons of purchasing these cap screws.

1. High Tensile Strength: With a class 10.9 rating, these cap screws have a high tensile strength, making them suitable for applications that require strong fasteners.

2. Flanged Hex Head Design: The flanged hex head design offers improved torque transfer and reduces the risk of the screw camming out during installation or use.

3. Widely Available: Dorman/Autograde cap screws are widely available at various automotive parts stores and online marketplaces, ensuring ease of access for customers.

4. Affordable: Compared to other high-strength fasteners, Dorman/Autograde cap screws are relatively affordable, making them a cost-effective option for many applications.

1. Limited Applications: While these cap screws can be used in various automotive applications, they may not be suitable for all types of fastening tasks. For example, they may not be suitable for applications that require a longer length or a different thread size.

2. Potential Quality Concerns: Some customers have reported issues with the quality of Dorman/Autograde cap screws, including inconsistent threading and poor finish.

3. May Not Meet OEM Specifications: These cap screws may not meet the original equipment manufacturer's (OEM) specifications for some vehicles, which could potentially impact the vehicle's performance or safety.

The Dorman/Autograde 459-420 cap screw is a versatile and affordable fastener suitable for various automotive applications that require a high tensile strength and a flanged hex head design. However, potential quality concerns and limited applicability are factors that should be considered before making a purchase.

If you require a high-strength fastener for your automotive application and are looking for an affordable option, the Dorman/Autograde 459-420 cap screw could be a suitable choice. However, it is essential to ensure that the screw meets the specific application requirements and to verify the quality of the product before use. If you have concerns about the quality or applicability of these screws, it may be worth considering purchasing from a more established brand or consulting with a professional mechanic.

Details:

part #: 459420 prices

• $7.50-$21.95

specifications toolssupp:

• brand: Dorman/autograde
• mpn: 459-420
• manufacturer warranty: 1 Year
• 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: 019495594208
• type: Hardware, Fasteners And Fittings

general toolssupp:

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

seller toolssupp:

• rating: 99.5%
• city: Colmar, Pennsylvania
• # reviews: 130400

payments toolssupp:

• other
• credit card: Diners-club
• wallet: Apple-pay

offer toolssupp:

• options: Ship-to-home
• quantity: 2
• started: March 15, 2026
• availability: In Stock
• sold: 0

returns toolssupp:

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

shipping toolssupp:

• service: Economy, Standard, Expedited, Overnight
• type: Fixed
• class: Economy, Standard, Expedited, One-day
• transit: 4-8 Days
• cost: $0.00

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