Brand: FATH Item: Milling connector Series: 45 Series For Use With: All 45mm and 90mm profile T-slotted rails Material: Zinc plated steel Color: Silver Manufacturer Part Number: 099D1045M0630 Slot Size: 10 FATH milling connector, silver, zinc plated steel, slot size 10. For use with all 45mm and 90mm profile T-slotted rails. Manufacturer part number: 099D1045M0630.