Stage 8 Locking Fasteners & Header Bolts

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    • Stage 8® - Header Locking Bolt Kit
      (0 reviews)
      # sp92964
      Header Locking Bolt Kit by Stage 8®. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if the locking retainer and clip are present then...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $32.66 - $112.85
    • Stage 8® - Exhaust Manifold Hardware Kit
      (0 reviews)
      # sp92963
      Exhaust Manifold Hardware Kit by Stage 8®. Thread Pitch: 3/8"-16. Stage 8 manufacturers the World's Best Active Mechanical Locking systems. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are...
      High quality at an affordable priceExpertly made from premium materials
      $50.99 - $62.31
    • Stage 8® - Flexplate Locking Bolt Kit
      (0 reviews)
      # sp92980
      Flexplate Locking Bolt Kit by Stage 8®. Stage 8 manufacturers the World's Best Active Mechanical Locking systems. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $40.08 - $57.22
    • Stage 8® - Oil Pan Locking Bolt Kit
      (0 reviews)
      # sp92968
      Oil Pan Locking Bolt Kit by Stage 8®.
      High quality at an affordable priceExpertly made from premium materials
      $40.08 - $60.59
    • Stage 8® - Timing Chain Cover Locking Bolt Kit
      (0 reviews)
      # sp92969
      Timing Chain Cover Locking Bolt Kit by Stage 8®.
      High quality at an affordable priceExpertly made from premium materials
      $30.16
    • Stage 8® - Pressure Plate Locking Bolt Kit
      (0 reviews)
      # sp92982
      Pressure Plate Locking Bolt Kit by Stage 8®. Stage 8 manufacturers the World's Best Active Mechanical Locking systems. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable...
      High quality at an affordable priceExpertly made from premium materials
      $25.85
    • Stage 8® - Valve Cover Locking Bolt Kit
      (0 reviews)
      # sp92973
      Valve Cover Locking Bolt Kit by Stage 8®.
      High quality at an affordable priceExpertly made from premium materials
      $19.29 - $38.54
    • Stage 8® - Valve Cover Locking Nut Kit
      (0 reviews)
      # sp92974
      Valve Cover Locking Nut Kit by Stage 8®.
      High quality at an affordable priceExpertly made from premium materials
      $19.29
    • Stage 8® - Header Locking Nut Kit
      (0 reviews)
      # sp92966
      Header Locking Nut Kit by Stage 8®. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if the locking retainer and clip are present then...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $37.69 - $76.34
    • Stage 8® - Intake Manifold Locking Bolt Kit
      (0 reviews)
      # sp92975
      Intake Manifold Locking Bolt Kit by Stage 8®. Stage 8 manufacturers the World's Best Active Mechanical Locking systems. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and...
      High quality at an affordable priceExpertly made from premium materials
      $28.79 - $46.80
    • Stage 8® - Distributor Locking Bolt Kit
      (0 reviews)
      # sp92976
      Distributor Locking Bolt Kit by Stage 8®. Stage 8 manufacturers the World's Best Active Mechanical Locking systems. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable...
      High quality at an affordable priceExpertly made from premium materials
      $6.89
    • Stage 8® - Flywheel Locking Bolt Kit
      (0 reviews)
      # sp92981
      Flywheel Locking Bolt Kit by Stage 8®. Stage 8 manufacturers the World's Best Active Mechanical Locking systems. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and...
      High quality at an affordable priceExpertly made from premium materials
      $26.29 - $38.54
    • Stage 8® - Header Locking Bolt Kit-H
      (0 reviews)
      # sp92965
      Header Locking Bolt Kit-H by Stage 8®.
      $20.00 - $112.85
    • Stage 8® - Starter Locking Bolt Kit
      (0 reviews)
      # sp92977
      Starter Locking Bolt Kit by Stage 8®. Stage 8 manufacturers the World's Best Active Mechanical Locking systems. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and...
      High quality at an affordable priceExpertly made from premium materials
      $12.35
    • Stage 8® - Water Pump Locking Bolt Kit
      (0 reviews)
      # sp101194
      Water Pump Locking Bolt Kit by Stage 8®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance...
      High quality at an affordable priceExpertly made from premium materials
      $13.85
    • Stage 8® - X-Lock™ Locking Spindle Nut
      (0 reviews)
      # sp118860
      X-Lock™ Locking Spindle Nut by Stage 8®. If you crave to add smoothness and dependability to your ride, keep an eye out on premium wheel hub bearings and seals. Manufactured from high strength materials, they will help boost...
      Designed to improve your off-road experience and safetyMade to deliver exceptional performance and reduce friction
      $74.96
    • Stage 8® - Timing Cover Bolt Kit
      (0 reviews)
      # sp125336
      Timing Cover Bolt Kit by Stage 8®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $30.16
    • Stage 8® - Automatic Transmission Pan Fastener Kit
      (0 reviews)
      # sp129168
      Automatic Transmission Pan Fastener Kit by Stage 8®. Stage 8 manufacturers the World's Best Active Mechanical Locking systems. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and...
      High quality at an affordable priceExpertly made from premium materials
      $31.76 - $37.43
    • Stage 8® - Turbo Locking Bolt Kit
      (0 reviews)
      # sp139329
      Turbo Locking Bolt Kit by Stage 8®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality...
      High quality at an affordable priceExpertly made from premium materials
      $29.08 - $69.23
    • Stage 8® - Oil Pump Locking Bolt Kit
      (0 reviews)
      # mpn3557984117
      Oil Pump Locking Bolt Kit by Stage 8®. Stage 8 manufacturers the World's Best Active Mechanical Locking systems. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $6.05
    • Stage 8® - Harmonic Balancer Locking Bolt Kit
      (0 reviews)
      # 1416186894
      Harmonic Balancer Locking Bolt Kit by Stage 8®. Stage 8 design the world’s most effective active mechanical locking systems that prevent even a single degree of fastener loosening rotation, and provide significantly more breakaway...
      High quality at an affordable priceExpertly made from premium materials
      $34.79 - $38.54
    • Stage 8® - Harmonic Balancer Bolt Special
      (0 reviews)
      # mpn4555236670
      Harmonic Balancer Bolt Special by Stage 8®. Stage 8 design the world’s most effective active mechanical locking systems that prevent even a single degree of fastener loosening rotation, and provide significantly more breakaway torque...
      High quality at an affordable priceExpertly made from premium materials
      $30.56
    • Stage 8® - Wide 5 Wheel Hub Locking Bolt Kit
      (0 reviews)
      # mpn3557984160
      Wide 5 Wheel Hub Locking Bolt Kit by Stage 8®. If you crave to add smoothness and dependability to your ride, keep an eye out on premium wheel hub bearings and seals. Manufactured from high strength materials, they will help boost...
      Designed to improve your off-road experience and safetyMade to deliver exceptional performance and reduce friction
      $42.83
    • Stage 8® - CV Joint Locking Bolt Kit
      (0 reviews)
      # 1479369772
      CV Joint Locking Bolt Kit by Stage 8®. Stage 8 Locking CV Joint Bolts are easy to use and provide absolute assurance against loose nuts or bolts. The unique patented and trademarked functional design is just three pieces: a bolt (4130...
      High quality at an affordable priceExpertly made from premium materials
      $42.76 - $66.05
    • Stage 8® - Header Locking Nut Kit
      (0 reviews)
      # mpn3557984185
      Header Locking Nut Kit by Stage 8®.
      High quality at an affordable priceExpertly made from premium materials
      $22.17
    • Stage 8® - Turbo Wastegate Kit
      (0 reviews)
      # mpn3557984201
      Turbo Wastegate Kit by Stage 8®.
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $19.23
    • Stage 8® - Carburetor Fasteners
      (0 reviews)
      # mpn3557984200
      Carburetor Fasteners by Stage 8®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $9.71
    • Stage 8® - Steel Nickel Plated Collector Locking Bolt Kit
      (0 reviews)
      # 781357768
      Steel Collector Locking Bolt Kit by Stage 8®. Material: Steel. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if the locking retainer...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $25.96 - $55.50
    • Stage 8® - Starter Locking Bolt Kit
      (0 reviews)
      # mpn3557984139
      Starter Locking Bolt Kit by Stage 8®.
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $18.08
    • Stage 8® - Brake Rotor Locking Bolt Kit
      (0 reviews)
      # mpn3557984211
      Brake Rotor Locking Bolt Kit by Stage 8®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
      High quality at an affordable priceExpertly made from premium materials
      $20.88




    Stage 8 is not just a company specializing in making locking fasteners, it's a team of highly dedicated professionals, striving to provide fail-safe joint integrity for crucial applications for years to come. Celebrating over 30 years of excellence in manufacturing the world’s most efficient active mechanical locking systems, Stage 8 is a well-trusted brand and industry leader within the market. The company offers locking systems that avoid even a single degree of fastener loosening rotation and ensure considerably more breakaway torque in comparison to other locking systems.

    The history of the company began in 1985 with a man named Bruce Bennett and his idea of creating a bolt that wouldn’t work its way loose, even under conditions of extreme temperature and vibration. Since then, Bruce had plenty of experience in not only providing locking header bolts to exasperated backyard mechanics but in making them perform for multiple industrial purposes. Stage 8 has supplied its highly efficient locking bolts to companies that make automobiles, locomotives, and earthmovers. Today, the manufacturer has 18 million locking systems installed in industrial and automotive applications, with no failures reported. Stage 8 proudly supplies Link-Belt Cranes, GE Locomotive, Caterpillar, Oshkosh, NASA, Ford Racing, Stolle Machinery, BAE Systems, and more.

    For the most crucial fastener applications, Stage 8 technology has regularly delivered distinct increases in equipment availability and safety, as well as significant reductions in maintenance costs and equipment failures. Currently, the company's product line includes performance automotive, off-road, industrial, custom, railroad, and military locking fasteners, all of which are proudly manufactured in the USA. Regardless of application complexity, the fasteners are designed to keep critical bolted joints tight in the most severe operating conditions. They are heat treated and through hardened to ensure maximum strength and superior performance. All locking fasteners install quickly and easily without special tools and are available in U.S. and Metric sizes.

    Stage 8 is very proud to be a member of Contingency Connection, the biggest grassroots motorsports marketing platform in America. The company is also an honored supporter of the U.S. military; it is an active participant of the Association of United States Army (AUSA), the National Defense Industrial Association (NDIA), and a proud member of the Defense Sustainment Consortium (DSC). Given the critical nature of fastener integrity as it applies to any military application, Stage 8 looks forward to supply fail-safe locking fastener systems for all current and future military needs. The company now holds 78 patents and trademarks, issued or applied for. All of the Stage 8 locking systems (Counter Bore, Abutment, Bridge, and Spindle Nut) have been used in a broad range of industrial applications with a 100% record of success. So, if you're looking for a locking fastener system that perfectly works for years to come, Stage 8 is the brand you can always rely on.

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