1/4-20 x 1 1/4 Phillips Fillister Head Machine Screw Fully Threaded Zinc NY188 The grade 5 rating indicates

The grade 5 rating indicates its high tensile strength

It has a hexagonal head and a partially threaded shank

Keep your boat dock sparkling clean with our heavy-duty 1' Dock Washer Galvanized

5/8" Internal Tooth Lock Washer Zinc is a type of washer used to prevent nuts and bolts from loosening due to vibration or movement

1/4-20 x 1 1/4 Phillips Fillister Head Machine Screw Fully Threaded Zinc NY188 The grade 5 rating indicates1 4 20 x 1 1 4 Phillips Fillister Head Machine Screw Fully Threaded Zinc: This screw has a 1 4 20 thread size, which means it has a diameter of 1 4 inch and 20 threads per inch. It is 1 1 4 inches long and has a fully threaded shank. The head of the screw is a Phillips fillister head, which has a flat top with a cross shaped recess for a Phillips screwdriver. The screw is made of zinc plated steel, which provides corrosion resistance.