ステンレス 小形六角ボルト - Stainless Kogata Rokaku Bolt
Stainless steel bolts with standard head size and thread pitch. Be careful for M8 and above, your bike may require a fine thread bolt sold in a different page. Hexagonal head screw that is very commonly used by restorer but not found on orginal bikes where zinc plating was the standard, small sizes have a full thread while bolts longer than 40 millimeters are not fully threaded except for M3 bolts which are all fully threaded.
There are no markings on the bolts heads. They looks great and can be polished to be almost like chrome. Stainless steel has excellent corrosion and heat resistance.
On the downside these bolts are expensive and I do not recommend stainless because of potential galling when set with aluminium parts like our engines. Always use a lubricant or interface when mounting.
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
Bolt Stainless Fine Pitch and / or Small Head
M8 M10 M12 10 o - - 12 o - - 14 o - - 16 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 o 50 o o o 60 o - o 65 - o o 70 o o o 75 - o o 80 o o o 85 - o o 90 o o o 95 - o o 100 o o o 110 - o o 120 - o o 130 - o o 140 - o - 150 - o