Solar SUS304 Expansion Bolt

The solar SUS304 expansion bolt is fully made of high-quality 304/316 stainless steel, with inherent excellent anti-corrosion, anti-rust and anti-oxidation performance, no need for additional electroplating treatment, and can effectively resist various outdoor corrosive factors such as acid rain, salt spray and ultraviolet radiation for a long time. The whole set consists of stainless steel bolt rod, slotted expansion sleeve, nut and flat washer with precise structural design. Precision-slotted expansion sleeve expands evenly when locked, fits base surfaces seamlessly without loosening, ideal for concrete, solid brick, stone and other common substrates.You can find the prices of the products you need on our website.

Function

Firm Anchoring

Expansion bolt forms strong anchoring force by mechanical expansion, connects stably with the base without loosening, and secures PV brackets, acoustic barriers and other equipment firmly.

Full Corrosion Resistance

SUS304 stainless steel’s inherent anti-corrosion property adapts to coastal, rainy, high salt spray and other corrosive outdoor environments, avoiding structural failure caused by fastener corrosion.

Easy Installation

Expansion screw features no complex process—drill and clean the hole, insert the fastener, tighten the nut, and finish anchoring with simple operation and high efficiency.

High Load Bearing

Premium stainless steel with precision processing delivers great tensile and shear strength, bears heavy loads, and meets all engineering mechanical requirements for fixed installation.

Advantages

304/316 stainless steel inherent material has far better anti-corrosion and anti-rust performance than ordinary electroplated fasteners, suitable for all outdoor complex working conditions of solar mounting accessories expansion bolt.

Wide Adaptability

Firmly anchors to concrete, solid brick, stone and more—an ideal fastener for PV brackets, acoustic barriers, outdoor supports and various on-site installation scenarios.

Durable and Reliable

Snug structural fit, steady expansion, no aging or loosening over time—keeps installed structures safe and stable for the long term in outdoor working environments.

High Cost Performance

Mass-produced to standard with consistent quality, no extra anti-corrosion upkeep costs—effectively slashes overall project fastener spending and optimizes engineering installation cost control.