1/4-20 x 5/8 in. Hex Head, Zinc, Full Thread, Hex - Qty:100 - MEL

1/4-20 x 5/8 in. Hex Head, Zinc, Full Thread, Hex - Qty:100

When your project requires the highest-strength graded bolts, these fasteners meet SAE J429 and ASME B18.2.1

They have a Rockwell hardness rating of C33 to C39. They also have a minimum tensile strength of 150,000 PSI.

All cap screws have right hand threads. Use with Grade 8 nuts.

Sold in boxes of 10.

The silver appearance of Clear Zinc has been around for many years and remains very popular. It also provides a moderate level of rust protection. Since this is a true electroplating, the zinc coating is part of the surface of the steel and very durable. Since this is a true electroplating, the zinc coating is part of the surface of the steel and very durable. Other chemicals can be added to the process and the depth of the coating can be controlled.