1/2 82º External Tooth Countersunk Lock Washer Zinc 2 1/4-12 while the black oxide and

while the black oxide and oil finish adds an extra layer of protection against rust and wear

Made from alloy steel

which allows it to be easily attached to acoustical tile

#6 Machine Screw Washer Zinc is a small

This 1/2-20 x 1 3/8 Hex Cap Screw is made of Grade 5 steel and has a zinc finish

1/2 82º External Tooth Countersunk Lock Washer Zinc 2 1/4-12 while the black oxide andThis 1 2" external tooth countersunk lock washer is made of zinc and is designed to prevent nuts and bolts from loosening due to vibration or movement. It has a 82 degree countersunk head that sits flush with the surface of the material, providing a secure and low profile connection. The external teeth bite into the surface of the material, creating a strong grip that resists loosening. This lock washer is ideal for use in automotive, industrial, and