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 Stainless Cotter Pin 3/32" x 3/4" $22.42 Carriage Bolt, 1/2"-13 x 5" $49.07 Phillips Tapping Screws - Oval Head, #10 x 1-3/4" $26.77 Phillips Tapping Screws - Flat Head, #6 x 5/8" $9.57 Flat Washer, 5/16", .062" Thick, OD 9/16" (A/N Style) $10.20