ICC BoxBolts - Certified ICC ESR 3217

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Product Description

The First Blind Bolt Connection to be Recognized by ICC

The BoxBolt is a Blind bolt fastener for faster, easier, blind structural connections suited for every environment and application. The BoxBolt provides guaranteed loading capacity providing that the correct tightening torque has been applied. This is stated in our installation guidelines. The loads stated are based on physical testing of all conditions performed by an ICC accredited testing facility.

How It Works

The BoxBolt™ is suitable for use with rectangular, square, and circular steelwork sections or other types of metalwork where access is restricted to one side only. It only requires a clearance hole to be drilled to suit its outside diameter. 

BoxBolt is a blind bolt connector that can be tightened down from one side. The hexagonal sleeve allows it to be held in position with an open-ended wrench while a torque wrench is used to tighten the core bolt. As the core bolt is tightened, the threaded wedge is drawn up inside the body, the fins expand, and a secure connection is made.

Consult the technical data listed below for minimum and maximum clamping ranges.


The BoxBolt Type C is physically tested with International Accreditation Service certification, which guarantees load value with the correct torque applied, as stated in the Measurements and Specifications.

ICC ESR-3217 The BoxBolt® has become the first blind anchor bolt to achieve certification from the ICC accrediting agency (ESR 3217).

Acceptance Criteria - AC437 This means all aspects of blind bolting are covered, and the product is safe to use for all blind connections.

To reduce installation time, the BoxSok™ can be used to attach to most air and power tools.

Get more information about BoxBolt Blind Connectors on the product information page.

BoxBolt Dimensions and Install Information

ICC boxbolt dimensions

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BoxBolt Strength Information

ICC boxbolt dimensions

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Additional Information

Manufacturer Kee Safety
Brand Box Bolt
Material Steel
Finish Geomet 320 XL
Bolt Head Hexagon
ICC Approved Approved
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