3/4" Box Bolt Size 3

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Price $82.90
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Price $96.45
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Model: BQ3X20
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Product Description

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.

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.

To reduce installation time, a one piece accessory called 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.

The Safe Working Loads are based on assemblies tested in typical conditions.

Model Dimensional Information Load Information
Model Bolt
Clamping range
Across Flats
of Shoulder
Hole size
Safe Working
loads (lbs)
(ft lb)
Min Max Tensile Shear
BQ3_20 3/4" 6" 2-9/16" 4" 1-13/16" 7/16" 1-1/4" 1-3/8" 36932 33804 221

The loads stated above are based on the LRFD (Load & Resistance Factor Design) method recommended by the AISC for bolted steel connections. This uses a factor of 0.75 of the ultimate load and therefore equates to a 1.33 to 1 factor of safety that we have applied to our published loads above. The overall strength of the connection is governed by the strength of material our BoxBolt is connecting into; therefore, this should be checked for structural capacity by a structural engineer.

Additional Information

Model BQ3X20
Manufacturer Kee Safety
Brand Box Bolt
Material N/A
Finish N/A
Setscrew Length N/A
Bolt Size Size 3
Bolt Diameter 3/4"
Hole Diameter 1-3/8"
Bolt Head Hexagon
ICC Approved No
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