Focus on stable fastening performance and cost-effectiveness, featuring high tensile strength up to 800MPa, which can bear the dynamic load caused by wind and snow in outdoor photovoltaic scenarios. The hot dip galvanized surface provides up to 1000 hours of salt spray corrosion resistance, effectively preventing rust and deterioration in humid and rainy outdoor environments. The external hex head design allows for easy installation with standard wrenches or socket tools, reducing construction time and labor costs. It complies with international standard ISO 4017, ensuring interchangeability with similar fastener products on the market. The strict hardness control between HRC28-32 balances the toughness and fastening strength, avoiding bolt breakage or loosening during long-term use.
Complies with ISO 4017 fastener standards, available diameter range from 6mm to 12mm, length range from 16mm to 80mm, with metric coarse thread specification. Made of Q235 carbon steel, with strength grade 8.8, the bolt achieves a minimum tensile strength of 800MPa and yield strength of 640MPa. The external hex head has a standard width across flats matching the corresponding wrench size, and the hex socket drive option is also available for narrow installation spaces. The surface is treated with hot dip galvanizing, with a coating thickness of 50-80μm, providing reliable corrosion protection for outdoor use. The thread precision meets the 6g tolerance standard, ensuring smooth screwing and firm fastening with matching nuts.
Mainly applicable to fixed ground-mounted photovoltaic racking systems, residential rooftop photovoltaic installation projects, and commercial photovoltaic power stations. It can be used to fasten photovoltaic panel brackets, foundation anchors, and support cross beams. Suitable for most temperate and subtropical outdoor atmospheric environments, it is not recommended for extremely high-salt or high-corrosion coastal areas without additional protective measures. It is compatible with most standard photovoltaic mounting accessories on the market, and can be widely used by photovoltaic installation contractors, hardware distributors, and photovoltaic system integrators.
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