5/16-18 x 1 1/2 Phillips Flat Machine Screw Fully Threaded 18-8 Stainless Steel NS316 they provide a secure grip

they provide a secure grip for easy installation

These 8 x 1 5/8-inch Phillips modified truss head fine thread drywall screws are fully threaded and have a black oxide finish

while the 4 1/2 refers to the length of the bolt

and other heavy-duty projects where longevity and reliability are paramount

5/16-18 x 1 1/2 Phillips Flat Machine Screw Fully Threaded 18-8 Stainless Steel NS316 they provide a secure gripThis 5 16 18 x 1 1 2 Phillips flat machine screw is fully threaded and made of 18 8 stainless steel. It has a Phillips drive and a flat head. The screw is 1 1 2 inches long and has a diameter of 5 16 inches. It is commonly used in a variety of applications, including construction, manufacturing, and automotive repair.