Online Parts Store › Phillips Machine Screw - Truss Head 1/4-20 x 3/4" Image 1 of 1 Phillips Machine Screw - Truss Head 1/4-20 x 3/4" $57.50 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screw - Pan Head, #10 x 2-1/2" $37.66 Stainless External Tooth Lock Washer 3/8" $34.20 Tee Nut - Stainless 5/16"-18 $26.64 Nylon Flat Washer #6, 0.32" Thick, OD 3/8" $17.45 Phillips Tapping Screw - Pan Head, #10 x 1/2" $21.73