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IMPORTS/METRIC

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Stage 8 Locking Header Bolts easy to use and they are real assurance against horsepower loss or gasket failure created by loose nuts or bolts. The unique patented and trademarked functional design is just three pieces: a bolt (4130 Alloy Steel), a locking retainer and a spring clip. The header bolt kits are application specific as either hex head with a 3/16 recessed allen head or 12 point, USA or metric. All Stage 8 Locking Header Bolt Kits are sold with all of the necessary hardware for your application.
STAGE 8 LOCKING HEADER BOLTS NOTE: DHH = DOUBLE HEX HEAD BOLT, INCLUDES 3/16 RECESSED ALLEN HEAD
Application
  
Part #
Pricing
Description
4 CYLINDER        
  Using 8mm bolts   4926 $43.89 (10) 8mm-1.25x25mm bolts 6pt DHH
  Using 8mm nuts   4927 $33.97 (10) 8mm-1.25 nuts
  Using 10mm bolts   4928 $43.89 (10) 10mm-1.50x22mm bolts 6pt
  Using 10mm-1.25 nuts   4929 $37.54 (10) 10mm-1.25 nuts
  Using 10mm-1.50 nuts   4930 $37.54 (10) 10mm-1.50 nuts
  Nissan 240, 260, 280Z   6921 $65.41 (17) 8mm-1.25 nuts
           
5 CYLINDER        
  Audi & VW w/ 8mm nuts   5920 $39.20 (10) 8mm-1.25 nuts
           
6 CYLINDER        
  Using 10mm bolts   6920 $59.46 (12) 10mm-1.50x22mm bolts 6pt
  BMW 6Cyl.   6927 $51.11 (12) 8mm-1.25 nuts
  68 - 74 Toyota Landcruiser   6923 $40.79 (8) 10mm-1.25 nuts
  75 - 87 Toyota Landcruiser   6924 $43.89 (8) 12mm-1.25 nuts
  FJ Cruiser   6925 $59.52 (12) 10mm- 1.25X25mm bolts 6pt
           
8 CYLINDER        
  Toyota 4.7 & 5.4 Liter   8919 $79.39 (16) 10mm-1.25x25mm bolts 6pt
           
ADDITIONAL LOCKING KITS:        
         
Turbo Kit (4) 8mm-1.25 nuts   3950 $26.99 (4) 8mm-1.25 nuts
Turbo Kit (4) Bolts   3902 $40.00 (4) 8mm-1.25x 25mm bolts 6pt
Turbo Kit (4)10mm-1.25 nuts   3951 $26.99 (4) 10mm-1.25 nuts
Turbo Kit (4) Bolts   3903 $49.92 (4) 10mm-1.25x 25mm bolts 6pt
Turbo Kit (4)10mm-1.50 nuts   3952 $26.99 (4) 10mm-1.50 nuts
CV Joint Kit 8mm1.25x45mm   8320 $50.56 (12) 8mm-1.25x45mm bolts 12pt
CV Joint Kit 3/8-24x1.75   8321 $50.56 (12) 3/8-24x1 3/4" bolts 12pt
CV Joint Kit 3/8-24x2.25   8322 $50.56 (12) 3/8-24x2 1/4" bolts 12pt
CV Joint Kit 3/8-16x2.50   8323 $50.56 (12) 3/8-24x2 1/2" bolts 12pt