Brand: FATH Item: Screw connector Series: 15 Series and 40 Series For Use With: 1.5 x 1.5in and 40 x 40mm profile T-slotted rails Material: Zinc plated steel Color: Gloss black Quantity per Pack: 10 Manufacturer Part Number: 092040 Slot Size: 8 FATH screw connector, gloss black, zinc plated steel, slot size 8. Package of 10. For use with 1.5 x 1.5in and 40 x 40mm profile T-slotted rails. Manufacturer part number: 092040.