A six-sided, internally threaded fastener, designed to be used specifically with machine screws and bolts of property class 8.8 and lower. 12MM diameter J.I.S. (Japanese Industry Standard) fasteners have a smaller hex dimension (17MM across the flats) than DIN metric fasteners (19MM across the flats). They fit in those tight spots where the hex of a DIN fastener is too large. J.I.S. fasteners are often used on import cars.
100 PER BOX / PRICE PER BOX
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