The RAF 4750-10-28 hex jack screw assembly is a precision-engineered fastener designed for secure attachment in various industrial applications. Constructed from durable steel ASTM-108 and finished with a zinc plate (Yellow Chromate) per ASTM-B-633, this assembly provides excellent corrosion resistance. It is supplied unassembled, including two #4 flat washers, one #4 lock washer, and one #4-40 nut, allowing for customized assembly configurations. RoHS compliant, ensuring environmental responsibility.