2026-08-03
Ground-mounted and rooftop photovoltaic power stations in Russia operate continuously under conditions of low temperature, salt spray, heavy snow and strong winds. PV fasteners are critical to guarantee stable operation of the entire PV mounting system. When purchasing fasteners in bulk, the material and strength grade selection of high-strength bolts directly determine the service life of power plants. This document sorts out complete selection parameters of high-strength bolts widely used for Russian PV projects.
PV fasteners cover a full range of components including bolts, rivets, washers and nuts. Among them, high-strength bolts serve as the core structural connectors for PV supports. For the Russian market, we mainly supply three types of high-strength bolts: Grade 8.8, Grade 10.9 and Grade 12.9, suitable for photovoltaic projects of different scales.
Grade 8.8 hot-dip galvanized high-strength bolts meet load requirements for small commercial and industrial rooftop PV projects. For large-scale ground-mounted tracker power stations, Grade 10.9 or 12.9 high-strength bolts are mandatory to withstand structural tension caused by strong winds and permafrost settlement.
Material confusion is the most common pitfall in bulk procurement of PV fasteners. Low-cost ordinary carbon steel high-strength bolts tend to rust and fracture within 1–2 years in Russia’s coastal regions. All high-strength bolts we export to Russia adopt alloy steel substrate with dual anti-corrosion treatment: hot-dip galvanizing or stainless steel passivation, and have passed third-party salt spray corrosion resistance tests recognized in Russia. In addition, complete sets of fasteners are equipped with spring washers, flat washers and toothed lock washers to prevent bolt loosening under low-temperature conditions.
To help Russian buyers calculate costs in bulk, we provide complete quotation lists for matched PV fasteners. High-strength bolts can be purchased separately or delivered together with mounting structures as a package. Tiered wholesale prices are available for large-volume orders. For first-time importers, we supply material test reports of high-strength bolts and customs clearance documents to avoid compliance risks during import.
Our professional technical team can recommend matching fastener solutions according to project scale and local climate conditions, accurately calculating required specifications and quantities of high-strength bolts to reduce capital occupation caused by overstocking. We provide one-stop supply of full-specification PV fasteners and supporting high-strength bolts to satisfy procurement demands for all types of photovoltaic projects across Russia.
