JIS B 1051 shares a close relationship with ISO 898-1, making it widely recognized and accepted in the international fastener industry. Many manufacturers can produce fasteners that simultaneously satisfy both Japanese and international standards, streamlining global trade and supply chains. When revisions were made to the international standard in 1978, JIS was subsequently revised for consistency.

Jis B1051 is a Japanese Industrial Standard (JIS) that specifies the requirements for bolts, screws, and studs. It is widely used in various industries, including construction, automotive, and manufacturing. The standard covers various aspects, such as materials, dimensions, and performance requirements for fasteners.

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Evaluates the material's toughness at low temperatures (crucial for cold-weather applications). International Equivalents: JIS vs. ISO and ASTM

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Represents 1/100th of the nominal tensile strength in Megapascals (MPa) or Newtons per square millimeter (N/mm²).

The document typically includes the following detailed sections: Standards.ie Designation System

: JIS B 1051:2014 — Mechanical properties of fasteners made of carbon steel and alloy steel — Bolts, screws and studs with specified property classes — Coarse thread and fine pitch thread.

This is the technical core of JIS B1051. It specifies:

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JIS B 1051 provides the detailed technical requirements that every bolt, screw, and stud must meet to be considered standard-compliant. The standard covers a wide range of fasteners, including those with coarse pitch threads M1.6 to M39 and fine pitch threads M18×1 to M39×3.