Online Parts Store › Phillips Machine Screw - Truss Head 1/4-20 x 1" Image 1 of 1 Phillips Machine Screw - Truss Head 1/4-20 x 1" $60.34 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Oval Head, #10 x 5/8" $28.59 Stainless Countersunk Finishing Washer, #8 $14.36 Phillips Tapping Screws - Oval Head, #10 x 1-3/4" $26.77 Phillips Tapping Screw - Pan Head, #12 x 1-1/4" $23.49 Square Tapping Screw - Flat Head,#8 x 1-1/4" $28.68