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 Stainless External Tooth Lock Washer 5/16" $19.48 Phillips Tapping Screw - Pan Head, #8 x 1-1/2" $25.70 Socket Set Screw 1/4"-20 x 1/4" $26.96 Square Tapping Screw - Flat Head,#10 x 1-1/2" $62.54 Nylon Insert Locknut - Stainless 12-24 $75.96