ASTM A193 B7 Hex Head Cap Screws

The ASTM A193 B7 specification is primarily used for the manufacturing of studs and bolts, but in industrial practice, this material is widely utilized to produce Hex Head Cap Screws (or sometimes referred to as machine screws) for demanding applications. These alloy steel fasteners are heat-treated (quenched and tempered) $\text{AISI 4140}$ steel, providing exceptional tensile strength and stability for high-pressure and high-temperature service environments up to $450^{\circ} \text{C}$. Zeron Fasteners specializes in supplying these critical $\text{B7}$ screws, ensuring they meet the stringent requirements of power generation, pipeline flanges, and petrochemical plants where durability and resistance to thermal stress are essential.

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