Online Parts Store › Phillips Machine Screw - Flat Head, 3/8"-16 x 2-1/2" Image 1 of 1 Phillips Machine Screw - Flat Head, 3/8"-16 x 2-1/2" $25.76 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Oval Head, #10 x 2" $27.33 Seachoice 01006 Lock Washer, #8 $15.43 Phillips Tapping Screw - Pan Head, #12 x 1-1/4" $23.49 Phillips Self Drilling Screw - Pan Head #10 x 3/4" $36.40 Stainless Countersunk Finishing Washer, #4 $13.29