Both studs are 5/16"-18 and are 5/8" long

Chrome plated plated stock phillips head screws mount timing cover on Harley-Davidson Shovelhead 1970-80

This heritage is reflected in our elevated front mount design with a shallow tunnel that sits high on the frame's backbone

Kit includes: Qty 6 - Rubber Boots For 7mm or 8mm Plug Wire

1/4 inch BSP Petcock Fuel Valve Reserve For Triumph 650 750 Norton 750 850 Fork Tube Diameter_33MM Both studs are 5/16"-18 andThis petcock features the proper 1 4 inch BSP (British Standard Parallel) threads for Triumph, BSA and Norton motorcycles, as well as any others with the BSP threads. This 'flag' style petcock is original equipment for Triumph 750cc models such as T140 and TR7, as well as Norton 750 and 850 cc motorcycles. Replacement for OEM # 60 4512