• SPC Performance Knuckle Pinch Hardware Bolt & Nut | 2017 - 2020 Audi A4, 2019 - 2020 Audi S4 & 2018 - 2021 Audi S5 (21045)
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SPC Performance Knuckle Pinch Hardware Bolt & Nut | Audi A4, S4, S5 (21045)

SPC Performance Knuckle Pinch Hardware Bolt & Nut | Audi A4, S4, S5 (21045)

21045

In stock

$7.53 USD
$9.05 USD $7.53 USD
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The SPC Performance Knuckle Pinch Hardware Bolt & Nut kit is a specialized replacement component designed for select Audi models, including the 2017–2020 Audi A4, 2019–2020 Audi S4, and 2018–2021 Audi S5. Crafted to address corrosion and seizing issues common with upper control arm ball joint pinch bolts, this kit ensures secure and reliable attachment of the control arm to the knuckle. Made from durable materials, the hardware provides enhanced resistance to rust and corrosion, extending the lifespan of critical suspension components. Its precise engineering ensures a proper fit and function, restoring optimal suspension performance and safety for enthusiasts and professional mechanics alike. This hardware kit is specifically engineered for direct replacement on the listed Audi models, fitting vehicles equipped with the original upper control arm pinch bolts. It is intended for use in suspension repairs, upgrades, or maintenance to prevent issues caused by rust or corrosion. Installation involves replacing the existing bolts and nuts with the included components, restoring the integrity of the control arm connection. Suitable for street driving, daily use, or maintenance work, this kit offers a reliable solution to maintain proper suspension alignment and handling. Compatibility is confirmed for the specified years and models, ensuring a precise fit for your vehicle’s suspension system.

Overview

SPC Performance Knuckle Pinch Hardware Bolt & Nut

2017–2020 Audi A4 / 2019–2020 Audi S4 / 2018–2021 Audi S5

Part #: 21045

Overview

The SPC Performance Knuckle Pinch Hardware Bolt & Nut kit is designed specifically for Audi enthusiasts and professional mechanics who seek a reliable solution for corrosion-prone components. This kit addresses the common issue of rusted or seized upper control arm ball joint pinch bolts on popular Audi models, including the A4, S4, and S5. Over time, exposure to road salt and moisture can cause these critical fasteners to corrode, making removal difficult and potentially compromising suspension integrity. With this kit, you can replace the original OE bolts and nuts with high-quality, corrosion-resistant hardware, ensuring easier maintenance and long-lasting performance.

Whether you're performing routine suspension service, upgrading components, or restoring your vehicle, this hardware kit provides a durable and cost-effective solution. Designed for both daily drivers and performance-oriented builds, it helps maintain proper suspension alignment and safety while reducing the hassle of dealing with rusted fasteners. The kit is ideal for those who want to keep their Audi's suspension system in top condition and avoid the frustration of seized bolts during repairs.

Key Features

The SPC Performance Knuckle Pinch Hardware Bolt & Nut kit offers several key features that make it an essential upgrade for your Audi suspension:

  • Constructed with high-grade steel and coated with a 720-hour salt spray certified finish, providing exceptional corrosion resistance and durability.
  • Designed to replace the original Audi OE bolt WHT006542 and nut N10286110, ensuring a perfect fit and reliable performance.
  • Prevents future corrosion buildup, reducing the likelihood of seized fasteners during maintenance or repairs.
  • Easy to install with standard hand tools, making it suitable for both professional mechanics and DIY enthusiasts.
  • Manufactured by SPC Performance, a trusted name in suspension hardware and automotive upgrades.
  • Sold as a single kit per side, ensuring comprehensive coverage for each suspension corner.
  • Meets or exceeds OEM specifications for strength and longevity, maintaining the safety and integrity of your vehicle's suspension system.

Construction & Design

This hardware kit features precision-machined steel components with a specialized salt spray coating that provides superior resistance to corrosion and rust. The bolts and nuts are engineered to withstand harsh environmental conditions, including road salt, moisture, and temperature fluctuations. The design ensures a secure pinch fit for the upper control arm ball joint, maintaining proper suspension geometry and alignment. The components are manufactured with tight tolerances to guarantee a straightforward installation process and a reliable, long-lasting connection.

Installation & Fitment

Installing the SPC Performance Knuckle Pinch Hardware Bolt & Nut is a straightforward process that requires basic hand tools. The kit is designed to replace the original hardware without the need for modifications or special equipment. It is recommended to inspect the surrounding suspension components for corrosion or damage before installation. No cutting, drilling, or complex adjustments are necessary. Proper torque specifications should be followed to ensure optimal clamping force and safety. This kit is suitable for both professional repair shops and DIY enthusiasts performing suspension maintenance or upgrades.

  • Replace corroded or seized OE bolts and nuts with this high-quality hardware kit.
  • Ensure proper suspension function and ease of future maintenance.
  • Ideal for restoring or upgrading suspension components on compatible Audi models.

What's Included

  • One high-strength steel bolt with corrosion-resistant coating
  • One matching nut with corrosion-resistant coating
  • Installation instructions (if applicable)

Ideal For

  • Owners and technicians performing suspension repairs or upgrades on Audi A4, S4, and S5 models
  • Enthusiasts seeking long-lasting, corrosion-resistant hardware for daily driving or spirited performance
  • Professionals looking to reduce repair time and prevent future corrosion issues
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