Bulk Inch Tamper Resistant Hex Keys Short Arm 6150 Alloy Steel – Security Allen Wrench 200 HV These washers meet DIN 127

These washers meet DIN 127 standards

Enhanced Locking Action: Internal teeth provide superior resistance against loosening due to vibration and torque

these washers are designed to prevent nuts and bolts from loosening due to vibrations and dynamic loads

Note: This set only includes screws

then dry-waxed for smooth

Bulk Inch Tamper Resistant Hex Keys Short Arm 6150 Alloy Steel – Security Allen Wrench 200 HV These washers meet DIN 127Monster Overview: Fix your project right the first time with Bulk Tamper Resistant Hex Keys Short Arm 6150 Alloy Steel from Monster Bolts. These security Allen wrenches are specifically designed to work with tamper resistant (pin in hex) fasteners, making them ideal for applications requiring controlled access and added security. Manufactured from durable 6150 alloy steel, these hex keys provide excellent strength and wear resistance for repeated use.