Corroded studs and nuts cause nearly 30% of exhaust failures, so choosing the right set makes a big difference.
Use stainless or heat-treated studs sized to match your manifold and engine, plus nuts that resist galling and stay tight through heat cycles.
Match thread pitch, length, and coating to your vehicle, and pick kits that include washers and work with anti-seize for easier future removal.
Below are the best exhaust stud and nut options for reliability, longevity, and straightforward maintenance.
| Exhaust Manifold M8×1.25 Gasket Nuts (10PCS) | Corrosion-Resistant Value | Thread Size: M8 × 1.25 | Application: Exhaust manifold gasket fastener | Material / Finish: Iron, copper-plated (rose gold finish) | VIEW LATEST PRICE | Read Our Analysis | |
| Dorman Exhaust Stud Kit M10-1.5 x 62mm |
| Trusted OEM Replacement | Thread Size: M10 × 1.5 | Application: Exhaust flange/exhaust stud replacement | Material / Finish: Quality metal (unspecified; OEM-grade) | VIEW LATEST PRICE | Read Our Analysis |
| Exhaust Studs and Nuts Kit for Honda/Acura |
| Honda/Acura Fitment Pick | Thread Size: M8 × 1.25 | Application: Exhaust manifold / intake manifold fasteners | Material / Finish: Stainless steel | VIEW LATEST PRICE | Read Our Analysis |
| ApplianPar Exhaust Stud & Nut Kit for Subaru Models |
| Subaru-Specific Fit | Thread Size: (vehicle-specific; studs for Subaru — implied standard metric studs) | Application: Exhaust manifold studs/nuts for Subaru models | Material / Finish: (unspecified metal; replacement studs/nuts) | VIEW LATEST PRICE | Read Our Analysis |
| Harley Exhaust Studs & Nuts (1984–2015) |
| Harley OEM Match | Thread Size: (Harley OEM replacement thread — stainless steel, OEM 16715-83) | Application: Exhaust studs/nuts for Harley Davidson exhaust | Material / Finish: Stainless steel, chrome finish | VIEW LATEST PRICE | Read Our Analysis |
| Stainless Steel M8x1.25 Exhaust Studs & Nuts Kit |
| Heavy-Duty Stainless | Thread Size: M8 × 1.25 | Application: Exhaust manifold studs/nuts for Ford/Lincoln/Mercury | Material / Finish: Premium stainless steel | VIEW LATEST PRICE | Read Our Analysis |
| Exhaust Manifold Bolt Kit – Zinc Plated (10PCS) |
| High-Strength Bolt Kit | Thread Size: (imperial/unspecified bolt size; high-strength exhaust bolt) | Application: Exhaust manifold bolt/nut kit (universal exhaust use) | Material / Finish: Grade 8 carbon steel, zinc-plated (gold finish) | VIEW LATEST PRICE | Read Our Analysis |
| FEL-PRO ES 75100 Exhaust Flange Bolt Set |
| Premium-Rated Kit | Thread Size: (application-specific exhaust flange threads; proprietary kit) | Application: Exhaust flange bolt set for exhaust system repair | Material / Finish: Coated fasteners with proprietary organic coating | VIEW LATEST PRICE | Read Our Analysis |
| Dorman Front Exhaust Stud Kit 3/8-16 x 2-1/2 |
| Front-Flange Specialist | Thread Size: 3/8-16 (imperial thread) | Application: Front exhaust flange stud kit | Material / Finish: Quality metal (unspecified; durable construction) | VIEW LATEST PRICE | Read Our Analysis |
| Dorman Exhaust Stud Kit M10-1.5 x 72mm |
| Long-Length Replacement | Thread Size: M10 × 1.5 | Application: Exhaust flange stud kit | Material / Finish: Quality metal (unspecified; durable construction) | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Exhaust Manifold M8×1.25 Gasket Nuts (10PCS)
Corrosion-Resistant Value
View Latest PriceShould you want a simple, durable fix for a leaky exhaust manifold, these Exhaust Manifold M8×1.25 Gasket Nuts (10PCS) are a great choice for DIYers and mechanics who need a reliable direct replacement. You’ll get ten M8×1.25 nuts that match OEM A1201420072 whenever threads align, so always verify the part number before you fit them. They’re iron with a copper plated finish, so they resist corrosion and handle heat without breaking. You’ll find them compact and lightweight, easy to carry in your tool kit. They secure the gasket, stop gas leaks, and help keep engine performance steady.
- Thread Size:M8 × 1.25
- Application:Exhaust manifold gasket fastener
- Material / Finish:Iron, copper-plated (rose gold finish)
- Quantity (kit contents):10 pieces
- Fit Type:Direct OEM replacement when thread/part matches
- Durability / Corrosion Resistance:Copper-plated for corrosion resistance; high strength iron
- Additional Feature:Copper-plated rose gold
- Additional Feature:Replacement OEM A1201420072
- Additional Feature:Compact lightweight dimensions
Dorman Exhaust Stud Kit M10-1.5 x 62mm
Should you need a reliable replacement for corroded or missing exhaust flange studs, the Dorman Exhaust Stud Kit M10-1.5 x 62mm is a solid pick for DIYers and professional mechanics alike. You’ll find the Dorman 03133 kit matches original hardware fit and function, so installation is straightforward whenever you enter your vehicle details into the garage tool. It replaces failed studs and nuts to restore flange connection integrity. The studs are made from quality materials that endure typical exhaust conditions. You’ll also get U.S. based support from a company with over a century of experience, which gives real peace of mind.
- Thread Size:M10 × 1.5
- Application:Exhaust flange/exhaust stud replacement
- Material / Finish:Quality metal (unspecified; OEM-grade)
- Quantity (kit contents):Kit (number of studs/nuts not explicitly listed; includes studs + nuts)
- Fit Type:Direct replacement for specified vehicles (vehicle lookup)
- Durability / Corrosion Resistance:Built to withstand exhaust conditions; durable construction
- Additional Feature:Dorman 03133 model
- Additional Feature:U.S.-based product support
- Additional Feature:Vehicle lookup compatibility
Exhaust Studs and Nuts Kit for Honda/Acura
Should you want a reliable, long-lasting fix for stripped or rusty manifold bolts, this M8×1.25 exhaust studs and nuts kit is a smart choice for Honda and Acura owners who value durability and fitment precision. You’ll get premium stainless steel studs and serrated-face flange nuts that resist rust and corrosion, so they last through heat and road salt. The 50 mm studs and washers come in a 16 piece package sized for B C D F H series engines and B series manifolds, and they also work for intake bolts. Sold through TUYOMEII, they include support should assistance be required.
- Thread Size:M8 × 1.25
- Application:Exhaust manifold / intake manifold fasteners
- Material / Finish:Stainless steel
- Quantity (kit contents):16 pieces (studs, nuts, washers)
- Fit Type:Direct fit for Honda/Acura B/C/D/F/H series engines
- Durability / Corrosion Resistance:Stainless steel — corrosion and rust resistant
- Additional Feature:Stainless steel construction
- Additional Feature:Fits B/C/D/F/H engine series
- Additional Feature:Includes washers and serrated nuts
ApplianPar Exhaust Stud & Nut Kit for Subaru Models
Should you drive a Subaru and want a simple, reliable fix for a leaking or broken exhaust flange, the ApplianPar Exhaust Stud and Nut Kit is a smart choice because it gives you the exact parts many Subaru models need for a secure repair. You’ll get four studs and four nuts that match common Subaru applications from Legacy and Outback to WRX and BRZ. Check the listed years and models before you install. The kit replaces part numbers 800910550, 902370029, and 800910390. You’ll feel confident using this kit because it’s straightforward, fits many models, and saves time during repair.
- Thread Size:(vehicle-specific; studs for Subaru — implied standard metric studs)
- Application:Exhaust manifold studs/nuts for Subaru models
- Material / Finish:(unspecified metal; replacement studs/nuts)
- Quantity (kit contents):4 studs + 4 nuts
- Fit Type:Direct replacement for listed Subaru models/years
- Durability / Corrosion Resistance:Designed as replacement OEM-quality studs/nuts (suitable for exhaust environment)
- Additional Feature:Subaru-specific fitment list
- Additional Feature:Includes 4 studs + 4 nuts
- Additional Feature:Multiple OEM replacement numbers
Harley Exhaust Studs & Nuts (1984–2015)
In case you want a dependable, corrosion-resistant set of exhaust studs and nuts that fit a wide range of Harley models from 1984 through 2015, these stainless steel, chrome-finish fasteners are a smart choice. You’ll get four studs and four nuts that directly replace OEM 16715-83. They fit Big Twin models, Sportster XL, Electra Glide, Softail, Dyna, Road King and more, so you won’t worry about compatibility. Because they’re stainless, they resist rust and keep that chrome look. You can install them easily as replacement exhaust mounting hardware, and they’ll hold up under road vibration and heat.
- Thread Size:(Harley OEM replacement thread — stainless steel, OEM 16715-83)
- Application:Exhaust studs/nuts for Harley Davidson exhaust
- Material / Finish:Stainless steel, chrome finish
- Quantity (kit contents):4 studs + 4 nuts
- Fit Type:Direct-fit replacement for listed Harley models/years
- Durability / Corrosion Resistance:Stainless steel with chrome finish for corrosion resistance
- Additional Feature:OEM replacement 16715-83
- Additional Feature:Chrome stainless finish
- Additional Feature:Fits wide Harley model range
Stainless Steel M8x1.25 Exhaust Studs & Nuts Kit
Should you want a tough, long-lasting fix for leaking or worn exhaust studs, this Stainless Steel M8x1.25 Exhaust Studs and Nuts Kit is a great choice, especially should you own a Ford F-150, F-250, Lincoln, or Mercury from the listed years. You’ll get 16 premium stainless steel M8×1.25 studs, 50 mm long, and 16 serrated-face flange nuts. They replace two exhaust manifolds and fit 4.6L, 5.4L, 6.8L engines for Ford 1996–2017, Lincoln 1998–2014, Mercury 2001–2011. They swap directly for OEM N811313S431 W707747S431 W701706-S2. GSTP makes them, model LN-1006-S-NRS, ASIN B09W2L5MTS.
- Thread Size:M8 × 1.25
- Application:Exhaust manifold studs/nuts for Ford/Lincoln/Mercury
- Material / Finish:Premium stainless steel
- Quantity (kit contents):16 studs + 16 nuts
- Fit Type:Direct replacement for Ford/Lincoln/Mercury listed models
- Durability / Corrosion Resistance:Premium stainless steel for long service life
- Additional Feature:Fits Ford/Lincoln/Mercury engines
- Additional Feature:Replaces two-manifold hardware
- Additional Feature:GSTP LN-1006-S-NRS model
Exhaust Manifold Bolt Kit – Zinc Plated (10PCS)
In case you want a reliable, long-lasting fix for a leaky or loose exhaust manifold, this 10-piece zinc plated bolt and nut kit is a smart choice for DIYers and pro mechanics alike. You’ll get ten 0.7″ x 1.45″ bolts made from Grade 8 carbon steel, so they stand up to heat and vibration without warping. The roll-formed threads fit factory holes cleanly and cut down cross-threading, giving a leak-free seal from the initial turn. The hex flange head spreads pressure and stops slipping, while the gold zinc plating blocks rust and makes future removal easy.
- Thread Size:(imperial/unspecified bolt size; high-strength exhaust bolt)
- Application:Exhaust manifold bolt/nut kit (universal exhaust use)
- Material / Finish:Grade 8 carbon steel, zinc-plated (gold finish)
- Quantity (kit contents):10-piece bolt and nut kit
- Fit Type:Universal fit (most cars, trucks, SUVs)
- Durability / Corrosion Resistance:Grade 8 carbon steel with zinc plating for rust resistance
- Additional Feature:Grade 8 carbon steel
- Additional Feature:Roll-formed threads
- Additional Feature:Integrated hex flange head
FEL-PRO ES 75100 Exhaust Flange Bolt Set
In case you want a dependable flange bolt set that makes exhaust repairs less stressful, the FEL-PRO ES 75100 has you covered with parts meant for mechanics and DIYers who need reliable, long-lasting fasteners. You’ll notice the kit is specific to exhaust work, so you get the right pieces without guesswork. The bolts come with a proprietary organic coating that resists rust, and those coatings are tested and certified. You’ll also get self-locking nuts where needed and fasteners with a controlled friction coefficient for steady torque. FEL-PRO verifies each component, so you can trust the fit and performance.
- Thread Size:(application-specific exhaust flange threads; proprietary kit)
- Application:Exhaust flange bolt set for exhaust system repair
- Material / Finish:Coated fasteners with proprietary organic coating
- Quantity (kit contents):Application-specific set (contents vary per kit)
- Fit Type:Application-specific fit (engineered per application)
- Durability / Corrosion Resistance:Proprietary corrosion-resistant organic coating; tested/certified
- Additional Feature:Proprietary organic coating
- Additional Feature:Controlled friction spec
- Additional Feature:Self-locking nuts included
Dorman Front Exhaust Stud Kit 3/8-16 x 2-1/2
Should you need a reliable, direct-replacement kit for a worn or missing front exhaust flange, the Dorman Front Exhaust Stud Kit 3/8-16 x 2-1/2 is a smart choice for DIYers and professional mechanics alike. You’ll get studs and nuts sized to match original hardware on specified vehicles, so fit and function stay true. Before you buy, check your make, model, and trim in a garage tool to confirm compatibility. The parts are built from quality materials for long service life in exhaust environments, and U.S. based experts back the product with decades of automotive experience.
- Thread Size:3/8-16 (imperial thread)
- Application:Front exhaust flange stud kit
- Material / Finish:Quality metal (unspecified; durable construction)
- Quantity (kit contents):Front kit (studs + nuts; exact count per vehicle application)
- Fit Type:Direct replacement for specified vehicles (vehicle lookup)
- Durability / Corrosion Resistance:Durable construction for exhaust environments
- Additional Feature:Dorman 03112 model
- Additional Feature:3/8-16 imperial sizing
- Additional Feature:Front exhaust application
Dorman Exhaust Stud Kit M10-1.5 x 72mm
You’ll appreciate the Dorman Exhaust Stud Kit M10-1.5 x 72mm whenever you need a dependable, direct-replacement set for worn or missing exhaust flange hardware on select Ford, Lincoln, and Mercury models. You’ll get a matched stud and nut that fit like the original, so you won’t worry about leaks or loose connections. The kit uses durable materials for long service life, and U.S. product experts back its quality with decades of experience. Before you start, verify fit with the vehicle lookup tool using make, model, and trim. That simple check saves time and prevents mismatches during installation.
- Thread Size:M10 × 1.5
- Application:Exhaust flange stud kit
- Material / Finish:Quality metal (unspecified; durable construction)
- Quantity (kit contents):Kit (stud + matching nut; count varies by listing)
- Fit Type:Direct replacement for specified Ford/Lincoln/Mercury models (vehicle lookup)
- Durability / Corrosion Resistance:Durable construction for exhaust environments
- Additional Feature:Dorman 03131 model
- Additional Feature:M10-1.5 x 72mm length
- Additional Feature:Backed by century-old brand
Factors to Consider When Choosing Exhaust Studs Nuts
Upon selecting exhaust studs and nuts, begin checking thread size compatibility and the proper fitment and length so parts seat securely. You’ll also want materials and coatings that handle heat and resist corrosion while meeting strength and grade requirements for your engine. Pay attention to how those choices work together so you get reliable, long lasting hardware without surprises.
Thread Size Compatibility
Because thread size controls how the stud and nut sit together, you’ll want to match pitch and diameter exactly before you spend time on installation. You should confirm whether the thread is metric or imperial so you don’t mix standards. Measure the major diameter and the pitch, for example M8 × 1.25, and compare to the old fastener or the service manual. Also check inner and outer thread specs against the engine block and manifold tolerances to guarantee full engagement and even load distribution. Decide between fine and coarse pitch based on clamping precision versus tolerance for heat cycling. Inspect existing fasteners and remark lengths. These steps cut risk, save time, and help you avoid stripped threads or fastener failure.
Material And Coating
Matching thread size was a smart initial step, and now you’ll want to turn attention to what the studs and nuts are made of and how they’re coated. You’ll prefer stainless steel like 304 or 316 whenever you desire long service life and reliable protection in hot, damp exhaust areas. Should you require higher raw strength, carbon or iron fasteners work well, but you’ll have to pick good protective coatings like zinc or plated finishes to stop rust from road salt and condensate. Copper or brass plating can help seat gaskets because it’s a bit soft, yet it doesn’t hold up as long at very high heat. Also choose coatings rated for exhaust temperatures so threads keep hardness and don’t gall or seize during service.
Heat And Corrosion Resistance
Provided that you want hardware that stays strong through heat and wet roads, pick studs and nuts built for high temperatures and corrosion at the same time. You’ll want stainless steels like 304 or 316 or heat treated alloys because exhaust manifolds hit 600 to 900°C and repeated cycles cause creep and preload loss. Also factor in coatings rated for continuous manifold heat, such as ceramic or specialty high temp platings, so they don’t flake off and trap moisture. Watch coefficient of thermal expansion to avoid differential movement that loosens joints or stresses studs. Choose corrosion resistant materials and high temp grades matched to expected exhaust temps. Use serrated or locking flange nuts and high temp anti seize to help maintain clamp load over time.
Strength And Grade
Upon selecting exhaust studs and nuts, start checking their strength grade and material so the joint stays tight through heat and vibration. You want fasteners with a clear grade like SAE Grade 8 or metric Class 10.9 because higher grades give more tensile strength and resist stretching under load. Also check material hardness and tensile MPa since exhaust parts face high temperature creep and cyclic loading. Aim for alloys above 800 MPa whenever possible. Prefer corrosion resistant high strength options such as stainless or properly plated carbon steel that keep properties at raised temps. Match stud and nut grades so the nut is not weaker than the stud. Finally, confirm thread engagement length and yield strength so you can clamp without deforming or stripping threads.
Fitment And Length
Should you want the exhaust to seal and stay put through heat and vibration, start with getting the fit and length right for your studs and nuts. You’ll match thread pitch and diameter exactly to the flange and block, like M8×1.25 versus M10×1.5, so you avoid cross-threading and failure. Next, pick a stud length that gives full thread engagement equal to the stud diameter and enough exposed threads for the nut and washers. Consider manifold thickness, gasket stack height, and heat shields so the nut can torque without bottoming out. Don’t pick studs that are too long and hit nearby parts or bend, and don’t pick ones too short that strip or lose clamp load during thermal cycling.
