Price Ranges for Bolts and Nuts, Fish, Square Head with Round Shaft and Hexagonal Nut

The price range for bolts and nuts can vary significantly depending on factors such as size, material, quality, manufacturer, and quantity. In general, for standard bolts and nuts, prices can range from a few cents to a few dollars per piece. High-grade stainless steel or specialty bolts may cost more.

For fish bolts, square head with a round shaft, and hexagonal nuts, prices will also vary based on similar factors. Fish bolts, which are specifically used in railway track systems, can range from a few dollars to tens of dollars per piece.

For exact pricing, I recommend reaching out to suppliers or manufacturers directly as they can provide the most up-to-date and accurate pricing information.