Roll In T-Nut For Slot Width 8 mm Steel Zinc Plated Fastener Thread Size 1/4 In.-20 Fastener Thread Length Not Applicable T-Nut Threaded Hole Location Single Center Roll-In Metric Compatible Brand and Series Fath 15 Series Fath 40 Series Compatible Manufacturer Model Number 09602U1/4F 15 Series 40 Series Package Quantity 4