{"id":7678,"date":"2025-10-31T10:03:24","date_gmt":"2025-10-31T10:03:24","guid":{"rendered":"https:\/\/www.raxpower.com\/?page_id=7678"},"modified":"2026-08-12T14:27:09","modified_gmt":"2026-08-12T14:27:09","slug":"parafuso-quadrado","status":"publish","type":"page","link":"https:\/\/www.raxpower.com\/pt\/pole-line-fastener\/square-head-machine-bolt\/","title":{"rendered":"Parafuso de M\u00e1quina de Cabe\u00e7a Quadrada"},"content":{"rendered":"
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Square Head Machine Bolt<\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>
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Square head machine bolts are threaded fasteners with a four-sided head designed for wrench use. The square head provides a larger bearing surface than hex heads, improving grip and torque control during installation while reducing tool slippage. This design makes them ideal for heavy-duty applications, timber framing, structural steel-to-wood connections, and historic building renovations where their traditional appearance is valued.<\/p>\n

These bolts are available in diameters from #10 to 1 inch and lengths from 3\/4 inch to 12 inches or more, with custom sizes up to 72 inches. Most feature partial threading, though full thread configurations can be custom ordered. Head styles include smooth, hammered, and pyramid options to accommodate different aesthetic preferences, from hand-hammered blacksmith looks to precision machine-formed designs.<\/p>\n

Materials typically include high-quality steel conforming to American Society for Testing and Materials (ASTM) A307 specification. Finishes such as hot-dip galvanized, black oxide, and hand-applied patinas provide durability and corrosion resistance for exterior and harsh environments. Minimum tensile strengths range from 4,650 to 35,000 pounds depending on size and grade, with recommended torque values from 15 to 130 foot-pounds.<\/p>\n

Square head bolts are commonly paired with matching square nuts for historical accuracy and visual cohesion in exposed applications. They are used in poleline hardware installation, heavy equipment frames, and vintage reproductions where authentic period appearance is essential.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div>