8-18 x 1 3/4 Unslotted Indented Hexwasher Self Drill Screw Full Thread Zinc & Bake 10-24-3 The K lock nut features

The K lock nut features a unique design that prevents it from loosening due to vibration or other forces

They help to distribute the load of the fastener and prevent damage to the surface of the material being fastened

These #6 medium split lock washers are made of durable steel and feature a black oxide finish for added corrosion resistance

The serrated point helps the screw to drill into metal

Its compact size and low profile make it ideal for space-constrained applications

8-18 x 1 3/4 Unslotted Indented Hexwasher Self Drill Screw Full Thread Zinc & Bake 10-24-3 The K lock nut featuresThese 8 18 x 1 3 4" Unslotted Indented Hexwasher Self Drill Screws are full thread, zinc plated, and baked for added durability. They feature a self drilling tip that eliminates the need for pre drilling, making installation quick and easy. The indented hex washer head provides a secure hold and prevents the screw from slipping. These screws are ideal for a variety of applications, including metal to metal, metal to wood, and wood to wood.