SMN-M8-55 Hardware Overview Bolts, Studs, & Nuts Product Detail (Click to Enlarge) Overview Silver Plated Metric Bolts, Hex Head, for 4.00" or 6.00" OD CF Flanges, (D-8 mm, L=55 mm, Thread Pitch: 1.25 mm) - with Hex Nuts & Washers, 25/pkg Order Part $27.25 USD per Unit Quantity View Cart