Brand: FATH Item: Screw Series: 10 Series, 15 Series, 30 Series, 40 Series and 45 Series For Use With: All T-slotted rails Material: Zinc plated steel Color: Black Quantity per Pack: 10 Manufacturer Part Number: 4ISO7380U1032.62M Head Type: Button head socket cap Thread Size: 10-32 UNF x 5/8in Slot Size: 6/8/10 FATH button head socket cap screw, black, #10-32 UNF x 5/8in, zinc plated steel, slot size 6/8/10. Package of 10. For use with all T-slotted rails. Manufacturer part number: 4ISO7380U1032.62M.