SAE WASHER SAE THROUGH HARDENED STEEL FINISH ZINC YELLOW FITS BOLT SIZES 1-1/4 IN. INSIDE DIA 1-3/8 IN. OUTSIDE DIA 2-1/2 IN. THICKNESS 0.136 TO 0.177 IN. ROCKWELL HARDNESS RC38 TO 45 LOAD DISTRIBUTING FOR USE WITH GRADE 8 FASTENER MEETS/EXCEEDS ASME/ANSI B 18.22 ASTM F436 PACKAGE QUANTITY 10
