Metric Fasteners
WARNING: This page is about a different car, the 2010 Suzuki Kizashi. However, it is still accessible from the selected car via links, so may be relevant.
Most of the fasteners used for this vehicle are JIS-defined and ISO-defined metric fasteners. When replacing any fasteners, it is most important that replacement fasteners are of the correct diameter, thread pitch and strength.
CAUTION:
The thread pitch (2) or the width across flats (3) may vary between ISO-defined and JIS-defined fasteners even when the nominal diameter (1) of thread is the same. Refer to JIS-TO-ISO MAIN FASTENERS COMPARISON TABLE below for the difference.
Installing a mismatched bolt or nut will cause damage to the threads.
Before installing a fastener, check the thread pitch for correct matching and then tighten it by hand temporarily. If it is tight, recheck the thread pitch.
Installing a mismatched bolt or nut will cause damage to the threads.
Before installing a fastener, check the thread pitch for correct matching and then tighten it by hand temporarily. If it is tight, recheck the thread pitch.
JIS-TO-ISO MAIN FASTENERS COMPARISON CHART
| Nominal diameter | ||||||
|---|---|---|---|---|---|---|
| M6 | M8 | M10 | M12 | M14 | ||
| JIS | Thread pitch | 1.0 | 1.25 | 1.25 | 1.25 | 1.5 |
| Width across flats | 10 | 12 | 14 | 17 | 19 | |
| ISO | Thread pitch | 1.0 | 1.25 | 1.5 | 1.5 | 1.5 |
| Width across flats | 10 | 13 | 16 | 18 | 21 | |