Threadforming screws, plastite® screw Phillips, Pan head 8 x 1 1/4" Qty: 1000 pcs - Lenght: 1 1/4"= 32mm - DIA: Screw No. 8 - .008 x 13 + .060 = 164 (No. 8 diameter in inches) x 25.4 = 4.166 diameter in mm Drawing enclosed