RS PRO Through Bolt 20 x 215 mm x 215 mm 22 mm Thread Size Torque Controlled Zinc Plated 177-6955

RS PRO 177-6955 Through Bolt is a high-quality, zinc plated (minimum 5μm bright zinc plating) fastener designed for reliable fixing in non-cracked concrete structures ranging from strength classes C20/25 to C50/60. It is torque controlled for dependable expansion and secure anchorage. The bolt is supplied pre-assembled to enable rapid installation and ensure consistent fitting quality.

This through bolt features a thread size of 20 x 215 mm, with an overall length of 215 mm and a drill diameter of 22 mm. Its maximum fixing thickness is 108 mm, making it suitable for medium to heavy-duty load applications such as attaching outdoor seating, handrails, barriers, warehouse racking, and facade systems. The fixing is designed for use when the fixture is in position at installation, allowing the hole to be drilled through the fixture and surrounding substrate.

RS PRO Through Bolt products include ETA Option 7 approval, signifying compliance with stringent European Technical Assessment regulations, confirming durability and performance in demanding construction environments. The bolt's zinc plating offers corrosion resistance ideal for outdoor and industrial settings.

Installation requires drilling a hole with the specified 22 mm diameter to the necessary depth, inserting the bolt with washer and nut, then tightening until proper expansion and fixing is achieved. Excessive torque should be avoided to maintain fixing reliability. After tightening, the nut and washer are removed, leaving a strong, permanent anchor.

The bolt's bright zinc plating protects against corrosion and extends service life. Suitable for a range of concrete strength classes from C20/25 to C50/60. The pre-assembled design ensures quick and easy installation. Torque controlled expansion delivers secure anchoring for medium to heavy loads.

Common industrial and construction applications include outdoor seating and handrail installations. The product is an essential component in masonry bolt and anchor fittings. Its dimensions and specifications meet practical fixing requirements in construction projects.

This RS PRO through bolt is part of a comprehensive range of mechanical fasteners available at EnvMart, suited for industrial, construction, and commercial projects demanding reliable and durable fixings. Explore the full RS PRO range for compatible fasteners and installation accessories.

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