Online Parts Store › Phillips Tapping Screws - Flat Head, #10 x 4" Image 1 of 1 Phillips Tapping Screws - Flat Head, #10 x 4" $43.96 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Tee Nut - Stainless 5/16"-18 $26.64 Seachoice 01008 Lock Washer, #12 $16.44 Stainless Cotter Pin 1/16" x 1" $17.13 Stainless Cotter Pin 5/32" x 1-1/4" $33.25 Stainless Cotter Pin 5/32" x 1-1/2" $64.12