Online Parts Store › Phillips Machine Screw - Oval Head, 1/4"-20 x 3" Image 1 of 1 Phillips Machine Screw - Oval Head, 1/4"-20 x 3" $26.70 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Lag Screw, 3/8 x 3" $41.46 Blind Rivet, 1/8" x 1/2" $71.23 Flat Washer, 3/8", .062" Thick, OD 1" $38.36 Phillips Tapping Screw - Pan Head, #8 x 1-1/2" $25.70 Nylon Insert Locknut - Stainless 7/16-14 $21.10