4-24 x 3/8 Phillips Pan Self Tapping Screw Type AB Fully Threaded 18-8 Stainless Steel NWRP72 9 rating indicates that the

9 rating indicates that the screw has a high tensile strength and can withstand heavy loads

With its Grade 8 rating

while the grade 5 rating indicates its high strength and reliability

which will deform the metal panel around the nut

4-24 x 3/8 Phillips Pan Self Tapping Screw Type AB Fully Threaded 18-8 Stainless Steel NWRP72 9 rating indicates that theThese 4 24 x 3 8 Phillips Pan Self Tapping Screw Type AB Fully Threaded 18 8 Stainless Steel are designed for use in a variety of applications. They are made from 18 8 stainless steel, which is resistant to corrosion and rust. The screws have a Phillips pan head, which allows for easy driving. The self tapping design means that the screws can be driven into metal without the need for pre drilling. These screws are fully threaded, which provides for a