100 piezas tuercas hexagonales de cabeza de bellota de acero inoxidable, tuerca de tapa de cabeza M8 M6 M5 M4 M3 hexagonal
Unique Design Screw Drive Style: Internal Hex. M8: The max distance across flats is 13mm. The max thickness is 15mm. M4: The max distance across flats is 7mm. The max thickness is 7mm. M8 --- 15 PCS.