Online Parts Store › Phillips Machine Screw - Truss Head 1/4-20 x 1-1/2" Image 1 of 1 Phillips Machine Screw - Truss Head 1/4-20 x 1-1/2" $45.85 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screw - Truss Head #8 x 1-1/2" $63.30 Square Tapping Screw - Flat Head,#8 x 1" $27.12 Stainless Cotter Pin 1/16" x 3/4" $17.76 Phillips Tapping Screw - Pan Head, #10 x 5/8" $24.31 Phillips Tapping Screws - Oval Head, #10 x 1" $27.33