#8 External Tooth Lock Washer Black Oxide 1/4-20-2 Its Grade 8 rating indicates

Its Grade 8 rating indicates its exceptional strength and ability to withstand high torque and tension loads

and a #3 head

This 5/8-18 x 4 1/2 Hex Tap Bolt Grade 5 Fully Threaded Zinc is a high-quality fastener designed for a variety of applications

or home improvement task

#8 External Tooth Lock Washer Black Oxide 1/4-20-2 Its Grade 8 rating indicates#8 External Tooth Lock Washer Black Oxide The #8 External Tooth Lock Washer Black Oxide is a high quality washer designed to prevent nuts and bolts from loosening due to vibration or other forces. It is made from durable steel and has a black oxide finish for corrosion resistance. The external teeth of the washer bite into the surface of the nut or bolt, creating a secure hold. This washer is ideal for use in a variety of applications, including