Bevinsee Exhaust Manifold Studs & Flanged Nuts Kit — 12 Pairs M10-1.25 48mm A2-70 Corrosion-Resistant

Bevinsee 12 Pairs Exhaust Manifold Stud Nuts Kit supplies twelve M10-1.25 x 48mm stainless steel studs and matching flanged nuts engineered for reliable exhaust manifold fastening.

This kit gives mechanics and DIYers a ready set of high-strength replacement studs and nuts for securing exhaust manifolds on compatible Toyota, Nissan, and Honda models. Constructed from A2-70 stainless steel, the components resist corrosion and provide consistent clamping where heat and vibration are routine. The set includes 12 studs and 12 flanged nuts sized to fit common OEM threads and wrench sizes so you can replace multiple fasteners in one service session.

Will these studs fit my vehicle’s exhaust manifold?

Compatibility varies by make and model; confirm thread pitch and stud length against your factory hardware before ordering. The studs are M10-1.25 with a 48mm overall length and split threaded sections, which match many Japanese exhaust applications.

• Thread pitch: M10-1.25
• Overall stud length: 48mm
• Threaded segments: 25mm and 15mm
• Wrench size for nut: 14mm

How durable are these studs under heat and vibration?

Made from A2-70 stainless steel, the studs and flanged nuts offer good corrosion resistance and mechanical strength suited to exhaust environments. They won’t match expensive high-grade alloys intended for extreme race conditions, but they are a robust, long-lasting option for normal road use and many light-performance applications.

• Material: A2-70 stainless steel
• High precision manufacturing for consistent fit
• Flanged nuts improve load distribution at mating surfaces
• Suitable for regular heat and vibration exposure

What tools and steps are needed to install these studs and nuts?

Installation requires basic hand tools and standard workshop practices: remove old studs, clean threads, and fit the replacement studs and nuts to specified torque values. Use a 14mm wrench for the flanged nuts and thread the studs to the correct engagement depth for a secure clamp without over-stressing the manifold or head threads.

• Required wrench size: 14mm
• Recommend cleaning and anti-seize for threads
• Install to factory torque specs where available
• Inspect mating surfaces and gaskets during reassembly

What exactly comes in the package and why that matters?

The kit contains 12 studs and 12 flanged nuts—enough to service an entire manifold on many 4- and 6-cylinder engines, or to replace selective studs on larger setups. Having a matched set ensures consistent hardware quality and reduces the risk of mixing different grades that can corrode or fail prematurely.

• Contents: 12 studs + 12 flanged nuts
• All pieces manufactured to the same A2-70 stainless specification
• Packaged for immediate use without mixing brands
• Check fitment notes before purchase

Who is this for: This Bevinsee kit is designed for automotive technicians, restoration hobbyists, and hands-on car owners who need reliable, corrosion-resistant replacements for exhaust manifold fasteners on compatible Toyota, Nissan, and Honda vehicles. If you require OE-sized studs and nuts in moderate-temperature exhaust systems and want a full set to complete a repair, this kit offers a practical and cost-effective solution. Remember to verify thread pitch and stud length against your vehicle before installing to ensure a proper match.