25/64 x 12 High Speed Aircraft Bit Cobalt

1/2-13 x 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (675)

9/16 x 6 1/4 ITM SDS Plus Hammer Drill Bit

1-8 x 3 1/4 Socket Cap Screw Alloy

1 1/8 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (20) 7/16-14 Socket Set Screws Cup Point Alloy 25/64 x 12 High Speed1 1 8 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (20) . L9 High Tension SAE pattern flat washers are designed for use in high stress, severe service environments. The highest mechanical strength off the shelf fastening system available, its special features control torque tension characteristics to develop high clamp loads when using properly controlled tightening methods.