10 BSW Whitworth Bolts 1/4 x 5/8 with Nuts & Washers (20 tpi) BZP Camera Tripod
Nuts are 1/4" whitworth BSW full nuts, 20tpi, bar turned with a single chamfer. Across flats (AF) = 0.524". Depth = 0.252". Ten (10) new 1/4" x 5/8" Whitwroth BSW bolts with 10x 1/4" nuts and 20x 1/4" washers.