Online Parts Store › Phillips Tapping Screws - Flat Head, #6 x 5/8" Image 1 of 1 Phillips Tapping Screws - Flat Head, #6 x 5/8" $9.57 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Oval Head, #12 x 1-1/4" $22.30 Phillips Tapping Screws - Oval Head, #12 x 1" $45.16 Phillips Tapping Screws - Flat Head, #14 x 1" $45.79 Stainless Cotter Pin 5/32" x 1" $51.08 Nylon Insert Locknut - Stainless 1/4-20 $27.84