medium strength fasteners with partially threaded shanks conforming to DIN 931

5/16 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (100)

25/64 x 12 High Speed Aircraft Bit Cobalt

7/8-14 x 5 Hex Cap Screw SS 18-8 (A2)

5/8-11 x 8 1/2 Simpson Wedge Anchor 303 SS (20)

1 1/8 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (20) 7/16-14 Socket Set Screws Cup Point Alloy medium strength fasteners with partially1 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.