Fasten with a screwdriver to reduce the risk of over-tightening to protect the screw and fastened material If nuts are needed, use with nuts of the same finish and threading for proper fit Zinc Plated Country of Origin: China

Product Description Machine screws are used with nuts or screwed directly into a threaded receptacle to fasten metal parts together. Measured from the underside of the head to the tip of the screw to obtain fastener length. If nuts are needed, use with nuts of the same finish and threading for proper fit. From the Manufacturer Machine screws are used with nuts or screwed directly into a threaded receptacle to fasten metal parts together. Measured from the underside of the head to the tip of the screw to obtain fastener length. If nuts are needed, use with nuts of the same finish and threading for proper fit.