Brand: FATH Item: Slide-in nut Series: 15 Series and 40 Series For Use With: All 1.5in, 3in, 40mm and 80mm profile T-slotted rails Material: Zinc plated steel Color: Silver Quantity per Pack: 10 Manufacturer Part Number: 096ST15M8 Thread Size: M8-1.25 Slot Size: 8 FATH slide-in nut, silver, M8-1.25, zinc plated steel, slot size 8. Package of 10. For use with all 1.5in, 3in, 40mm and 80mm profile T-slotted rails. Manufacturer part number: 096ST15M8.