The main structural component, the turnbuckle brace, is a reliable JIS certified product!
Article 37 of the Building Standards Act requires that specified building materials used for major structural components of buildings must be JIS standard products or products certified by the Minister. Since turnbuckles are classified as specified building materials, turnbuckles (turnbuckle braces) used in buildings must be JIS standard products. In the event of a major earthquake, the axial elongation performance of the turnbuckle brace will be maximized, preventing the collapse of the building. JIS-certified factories ensure that turnbuckle braces can be used safely anywhere in the country by managing the rolling screw processing and screw accuracy required for axial elongation, using controlled steel materials, and employing welded turnbuckle bolts, as well as using turnbuckle bodies that guarantee sufficient strength based on weight regulations. For more details, please contact us or refer to our catalog.
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basic information
【Features】 ○ Uses SNR400B material, which is construction steel, for the shaft part → JIS standard number: JIS G 3138 → Yield point (N/mm²): less than diameter 12 - 235 or more, diameter 12 and above - 235 to 355 → Tensile strength (N/mm²): 400 to 510 → Yield ratio (%): diameter 12 and above - 80 or less → Elongation (%): diameter 12 and below - 21 or more, over diameter 25 - 24 or more → Impact value (J): 27 or more 【Product Lineup】 ○ Split frame turnbuckle body → JIS standard & Whitworth thread products ○ PS turnbuckle body → JIS standard & Whitworth thread products ○ Whitworth screws (raw, electroplated, hot-dip galvanized) ○ Zinc die-cast turnbuckle (electroplated) ○ Stainless steel turnbuckle ● For more details, please contact us or refer to the catalog.
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Company information
Naniwa Iron Works Co., Ltd. has been cultivating technology in the field of iron for over half a century since its establishment in 1949. From product development that accurately reflects customer needs to manufacturing and logistics, we deliver high-quality and highly reliable products to the world as a total planner of iron products.