3/8 x 11/4 MS16555, Dowel Pins, Clear Passivated Per ASTM A380-88 400 Series S/S DFAR MS90725 The washer has a serrated

The washer has a serrated surface that helps to prevent it from slipping when it is tightened

The nibs help to prevent the screw from turning when it is being welded

4-24 x 5/8 Phillips Pan Self Tapping Screw Type B Fully Threaded Black Oxide

The un-slotted indented hex washer head provides a secure grip for tightening and prevents stripping

The 10-32 x 1 3/4 Phillips Pan Taptite Alternative Thread Rolling Screw Fully Threaded Zinc & Wax is a high-performance screw designed for use in a variety of applications

3/8 x 11/4 MS16555, Dowel Pins, Clear Passivated Per ASTM A380-88 400 Series S/S DFAR MS90725 The washer has a serratedMS16555 Dowel Pins are cylindrical fasteners with a smooth surface and a slightly tapered end. They are designed to be inserted into pre drilled holes to align and secure two or more components. These pins are made of 400 series stainless steel, providing excellent corrosion resistance and durability. The clear passivated finish enhances the corrosion resistance and gives them a clean, polished appearance. They conform to the specifications of ASTM