M16-2 x 55 Metric Socket Head Cap Screw Class 12.9 ISO 4762 Black Ox 1/4-20 this washer features sharp teeth

this washer features sharp teeth on its inner diameter that bite into the surface of the bolt or screw

The washer has a large surface area

It has a 1/4-inch diameter and a length of 1 1/2 inches

The 1/2-13 x 1 3/4 Hex Cap Screw Grade 2 Zinc is a high-quality fastener designed for use in various applications

or plastic projects

M16-2 x 55 Metric Socket Head Cap Screw Class 12.9 ISO 4762 Black Ox 1/4-20 this washer features sharp teethThe M16 2 x 55 Metric Socket Head Cap Screw Class 12. 9 ISO 4762 Black Ox is a high strength, corrosion resistant screw designed for demanding applications. It is made of alloy steel and heat treated to a tensile strength of 12. 9. The screw has a black oxide finish that provides additional corrosion resistance. The socket head design allows for easy installation and removal with a hex key or Allen wrench. The screw is 55mm long and has a thread