ASTM F3111
Standard Specification for Heavy Hex Structural Bolt/Nut/Washer Assemblies, Alloy Steel, Heat Treated, 200 ksi Minimum Tensile Strength
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About This Item
ASTM F3111 defines the requirements for heavy hex structural bolt/nut/washer assemblies made from alloy steel, heat treated to achieve a 200 ksi minimum tensile strength. ASTM F3111 is important for buyers and specifiers who need a clear technical basis for selecting high-strength fastening assemblies with consistent material and performance expectations. As a product-page reference, it helps support informed procurement, quality control, and compliance decisions for demanding structural applications.
What is ASTM F3111?
This ASTM standard is a specification for complete heavy hex structural bolt, nut, and washer assemblies rather than for a single fastener component. It addresses an alloy steel assembly that is heat treated and intended to meet a minimum tensile strength of 200 ksi. In practical terms, ASTM F3111 provides a defined technical framework for the materials, configuration, and performance requirements associated with these high-strength structural fastening assemblies, helping ensure that the parts supplied are consistent and fit for intended use.
Where is ASTM F3111 used?
ASTM F3111 is commonly used where heavy hex structural bolt assemblies are selected for high-load fastening needs and where a specified high tensile strength is important. It is relevant to procurement and engineering workflows that call for standardized bolt, nut, and washer sets made from heat-treated alloy steel. The standard is typically referenced when ordering, comparing, or evaluating fastening assemblies for structural connections that require dependable strength and controlled manufacturing consistency.
Why is ASTM F3111 important?
This specification matters because it gives purchasers, engineers, and quality teams a common reference for product requirements and expected performance. ASTM F3111 supports more consistent sourcing by defining the assembly type, material family, heat treatment condition, and minimum tensile strength. That can reduce ambiguity in procurement, improve product comparison, and support testing or inspection programs. For projects that depend on high-strength structural fastening, a clear standard helps lower the risk of mismatched or nonconforming assemblies.
- Heavy hex bolt, nut, and washer assembly
- Alloy steel, heat treated
- 200 ksi minimum tensile strength
- Structural fastening specification
- Useful for procurement and quality control
- Publication Date: 2024-05-07
- Publisher: ASTM
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