1/2-20 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated

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1/4 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (11,100) Short Arm Hex Keys Alloy 1/2-20 x 8 Grade 81 4 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (11100) . 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.