T-H Marine Phillips Oval Head Machine Kit - Stainless Steel Oval Head Machine Phillips Head Kit. Features: • Stainless steel fasteners • Reusable box (6) 1/4-20 x 1in Kit Includes: (6) 1/4-20 x 1-1/2in (6) 1/4-20 x 2in (18) #14 Finish washers (18) 1/4in Flat washers (18) 1/4-20 Nylon lock nuts