Products 1298400 Unit Price: $ 44.6650 /EA Pkg Qty: 1 Description: 5/16-18 X 6 H3 3FX PLUG Item Category Code: OSG Product Group Code: THREADING Chamfer Length: 4P - 4.5P Coating: BRIGHT Coolant Through: NO Flutes: 3 Material: HSS Overall Length: 6" Shank Diameter: 0.318" Size: 5/16" Square Size: 0.238" Style: SPIRAL FLUTE Thread Class: UNC Thread Length: 1-1/8" Thread Limit: H3 TPI / Pitch: 18 × Warning! You are currently logged in as a guest, please login or continue as guest.