Online Parts Store › Phillips Machine Screw - Pan Head. 5/16"-18 x 3/4" Image 1 of 1 Phillips Machine Screw - Pan Head. 5/16"-18 x 3/4" $24.06 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screws - Flat Head, #14 x 3/4" $44.09 Phillips Tapping Screw - Pan Head, #10 x 1-3/4" $26.26 Phillips Tapping Screws - Oval Head, #10 x 5/8" $28.59 Phillips Tapping Screws - Oval Head, #12 x 2" $30.67 Carriage Bolt, 1/2"-13 x 3" $92.78