Brand: FATH Item: Self-tapping screw 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: 093SF0740 Head Type: Button head socket cap Thread Size: 7 x 40mm Slot Size: 8 FATH button head socket cap self-tapping screw, silver, S7 x 40mm, 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: 093SF0740.