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- M8x1.25, M8, 8mm X 1.25mm
- Metric 12mm Wrench JIS Left/Reverse Hex Head Serrated Flange Nut
- Material: Low Carbon Steel
- Finish: Yellow Zinc Plating
- This nut has a left hand thread (the nut is turned to the left to tighten, unlike regular nuts that turn to the right)
- These serrated hex flange nuts provide better holding power than regular hex nuts and are practical since there is no need to purchase separate washers as the washer is already built-in with the nut.
- The serrations on the nuts form a connection which resists loosening when wrenching into place by displacing material on the mating surface, thus providing a locking action.
- Diameter: 8mm
- Pitch: 1.25 Coarse Thread
- Wrench Size: 12mm
- Flange Outer Diameter Max: 17.0mm
- Head Height Max Including Flange: 7.5mm
- Standard: JIS B1190
- Thread Direction: Left Hand
- Drive Style: External Hex
- 25 Pieces Per Package
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