Online Parts Store › Phillips Tapping Screws - Flat Head, #8 x 1-3/4" Image 1 of 1 Phillips Tapping Screws - Flat Head, #8 x 1-3/4" $16.75 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Flat Head, #8 x 1-1/4" $19.34 Phillips Tapping Screws - Oval Head, #12 x 1" $45.16 Flat Washer, 5/8", .078" Thick, OD 1-1/2" $22.42 Seachoice 18-8 Stainless Steel Wing Nuts, 1/4-20 Size, Pack of 100 $110.41 Stainless Cotter Pin 5/32" x 1-1/2" $64.12