ASTM A193 B16 Socket Head Cap Screws

The ASTM A193 B16 Socket Head Cap Screw (SHCS) is a high-strength, precision threaded fastener designed for internal wrenching, allowing for use in counterbored holes where minimal head clearance is available. It is manufactured using the B16 alloy steel grade, a Chromium-Molybdenum-Vanadium composition specifically engineered for extreme high-temperature service (above $850^\circ\text{F}$ or $454∘C). The critical characteristic of B16 is its superior creep resistance—its ability to maintain preload and resist permanent deformation over long periods under sustained stress at elevated temperatures. These cap screws are essential for securing internal components and covers in equipment used in power generation and petrochemical facilities, such as turbine casings, compressors, and high-pressure steam valves, where maximum joint integrity and thermal stability are required. Zeron Fasteners ensures these SHCS meet the stringent chemical and mechanical requirements for this demanding service.

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