ボルト - Bolt

 

WARNING: Some bolts sizes have small markings on the head, this is standard today. I am trying to source the full line-up without any markings. Please check again in a few months.

The table on the right indicates which sizes have marking or not, make sure before ordering.

 

Two types of treatments are proposed:

- Trivalent plating treatment is a modern plating that looks similar to zinc without the chemical hazard and better consistency and corrosion resistance. This is the standard for Japanese manufacture and I recommand it for a perfect looking and lasting restoration.

- Chromate plating for resistance to corrosion. Electrogalvanizing is applied to the base, and then a chromate treatment using hexavalent chromium, which is a chemical conversion treatment, is applied. The chromate film changes its color from blue to yellow to red to red-green to green-brown to brownish brown as the chromate film immersion time of the zinc plating solution increases and the thickness of the chromate film increases. Hexavalent chromium is subject to RoHS regulations but still widely used. These are the few yellow bolts on our bikes.

 

Japanese vintage motorcycles, JIS screw, small head nut, small head bolt, pan head screw, honda, Kawasaki, Yamaha, Suzuki, Kawasaki 900 Z1, honda 750 CB K, Yamaha 350 rd, Suzuki 750 gt, zinc, stainless, acorn nut, black zinc, Japanese industrial standard, JIS screwdriver, engine bolt, flange bolt

Bolt Standard Pitch Full Thread

Material
Size
Length (mm)
Head Size
  • Available without head mark: o

    Available with head mark: +

      M5 M6 M8 M10 M12
    8 o +      
    10 o o o +  
    12 o o o +  
    14   + o +  
    15 o o + + +
    16 o o o + +
    18 o + + + +
    20 o o o + +
    25 o o o + +
    30 o o + + +
    35 o o + o +
    40   o o + +
    45   + + + +
    50   + + + +
    55 o + + + +
  • Available without head mark: o

      M8 M10 M12
    8   o  
    10 o o  
    12 o o o
    14 o o o
    15 o    
    16 o o o
    18 o o  
    20 o o o
    25 o o o
    30 o o o
    35 o o o
    40 o o o
    45 o o  
    50 o o o
    55 o o o

     

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Our products are made in Japan and shipped from Japan.

Japanese vintage motorcycles, JIS screw, small head nut, small head bolt, pan head screw, honda, Kawasaki, Yamaha, Suzuki, Kawasaki 900 Z1, honda 750 CB K, Yamaha 350 rd, Suzuki 750 gt, zinc, stainless, acorn nut, black zinc, Japanese industrial standard, JIS screwdriver, engine bolt, flange bolt, 7 mark bolt, JIS screwdriver, vessel megadora