1/2-13 x 1 1/4 Serrated Hex Flanged Washer Full Thrd Grade 5 w/Head Markings Zinc Yellow 5/16-18-2B It is fully threaded and

It is fully threaded and has a 100º countersunk head

Whether for industrial machinery

3/8 Internal Tooth Lock Washer Zinc Yellow is a versatile and durable washer designed to prevent loosening of nuts and bolts due to vibration or other external forces

and the 1 3/4-inch length provides ample grip

1/2-13 x 1 1/4 Serrated Hex Flanged Washer Full Thrd Grade 5 w/Head Markings Zinc Yellow 5/16-18-2B It is fully threaded andThe 1 2 13 x 1 1 4 Serrated Hex Flanged Washer Full Thrd Grade 5 w Head Markings Zinc Yellow is a type of washer that is used to distribute the load of a bolt or screw over a larger surface area. It has a serrated surface that helps to prevent the bolt or screw from loosening. The washer is made of zinc plated steel and has a yellow finish. It has a full thread and a hex head with markings.