Bevinsee Exhaust Manifold Studs Kit M10-1.25 x48mm — 12 Pairs A2-70 Stainless

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 provides a complete set of 12 studs and 12 flanged nuts made from A2-70 stainless steel, sized to common Japanese engine specifications. Each stud measures 48mm overall with split-thread sections (25mm and 15mm) to match manifold and head engagement, while the nuts accept a 14mm wrench. The parts are precision-made for corrosion resistance and consistent fit, intended to simplify replacement during exhaust removal or manifold upgrades.

Will these studs fit my vehicle’s exhaust manifold?

Compatibility depends on thread pitch, length and head clearance; this kit is commonly used on various Toyota, Nissan and Honda applications that accept M10-1.25 studs. Verify your original stud dimensions before buying to ensure correct engagement and clearance.

• Thread size: M10 with 1.25mm pitch.
• Overall stud length: 48mm with 25mm/15mm threaded sections.
• Nut hex size: 14mm for tightening access.
• Material: A2-70 stainless for corrosion resistance.

How do these studs improve exhaust manifold reassembly?

Replacing damaged or corroded studs with matched-length stainless parts restores accurate manifold alignment and durable clamping force. Using flanged nuts reduces the chance of loosening and spreads load across the manifold flange for a more even seal.

• Exact thread pitch prevents cross-threading during installation.
• Flanged nuts decrease point-load stress on the flange.
• Stainless construction resists rust in high-heat exhaust environments.
• Uniform stud lengths make torqueing and gasket seating predictable.

What are the key dimensions and material details I should confirm?

Before purchasing, measure your existing studs or the threaded holes on the head and manifold to confirm match. This kit uses M10-1.25 threads, 48mm overall length, and A2-70 stainless steel for strength and corrosion protection.

• Stud size: M10-1.25 x 48mm total length.
• Threaded portions: split 25mm/15mm for head and nut ends.
• Nut hex across flats: 14mm wrench fit.
• Material grade: A2-70 stainless steel, balancing toughness and corrosion resistance.

How should I install these studs and nuts for best results?

Use anti-seize on threads exposed to heat to ease future removal, thread studs into the head hand-tight and torque to manufacturer specs, then mount the manifold and torque the nuts evenly. Avoid over-torquing to prevent stud stretch or head damage.

• Apply high-temperature anti-seize to exposed threads.
• Start studs by hand to avoid cross-threading.
• Tighten nuts in a star or crisscross pattern to seat the manifold evenly.
• Follow vehicle manufacturer torque specs where available.

Who this is for: This Bevinsee kit is suited for DIY mechanics, professional techs and anyone rebuilding or repairing exhaust manifolds on compatible Toyota, Nissan or Honda engines who need a matched batch of M10-1.25 stainless studs and flanged nuts. It’s particularly useful when original studs are seized, broken or corroded and when consistent replacement hardware is required across all manifold fasteners.