1/2 82º External Tooth Countersunk Lock Washer Zinc 2 1/4-12 This 1/2-20 x 1 3/8

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

This 5/16"-18 x 2-1/2" ribbed neck carriage bolt is crafted from durable 18-8 stainless steel

and the drive size is 1/4 inches

#6 Machine Screw Washer Zinc is a small

which allows it to be easily attached to acoustical tile

1/2 82º External Tooth Countersunk Lock Washer Zinc 2 1/4-12 This 1/2-20 x 1 3/8This 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