ICC BoxBolt® - Quick and Easy Blind Structural Steel Connections Backed by ICC Approval

Overview

BoxBolt is a fully tested blind fastener for connecting to tube steel or where access is restricted to one side only.   BoxBolt is suitable for use with rectangular, square or even round tube sections.  It eliminates the need for access to both sides of the connection and only requires a clearance hole to be drilled to suit its outside diameter.  The holes can be drilled off site for new projects where the position of the holes can be detailed or the holes can be drilled on site for retrofit applications.

There is no need for any skilled labor to install a BoxBolt as it can be done by using simple hand tools such as a wrench and torque wrench.

The BoxBolt offers a guaranteed load value provided the correct torque has been applied; this is stated in our technical tables and installation guidelines.  The loads stated are based on physical testing of all conditions performed by a test facility with International Accreditation Service (IAS) certification.

Our unique BoxSok installation tool can be used to speed up installation when large numbers of BoxBolt are required.

Materials

  • Mild steel to BS EN 10083 Grade 1.1151

Finish

  • Geomet 321 XL

 

 

Testing and Approvals

ICC ESR-3217

The BoxBolt is the first blind bolt to receive an Evaluation Service Report from the ICC Evaluation Service.  Our report can be viewed on the ICC website by searching for our unique ESR number, ESR-3217 or by clicking here.

 

Acceptance Criteria - AC437

The testing and analysis have been performed in accordance to AC437 Acceptance Criteria.  This ensures all aspects of blind bolting are covered and that our product is safe to use for all blind connections.  The data in our technical tables were all developed from physical testing.  Please click here to see a full copy of acceptance criteria AC437.

 

 

 

Product Testing

The testing we instigated was performed at an IAS certified test facility and the report is available for review.

 


Technical Specifications

Diagram - ICC Approved BoxBolt®
Diagram - ICC Approved BoxBolt®
Part Number & Description Dimensional Information Load Information
Product
code
Bolt
Dia
Description Setscrew
Length
Clamping range
(X)
Across Flats
of Shoulder
Shoulder
Thickness
Dim A Dim B

Drill

Dia C

Torque

(ft lb)

LRFD Method ASD Method
Min Max

Tensile (Ibs

Shear (Ibs)   Tensile (Ibs)    Shear (Ibs)  
BQ1GEO12C 1/2" 1/2" BoxBolt Size 1 2-3/16" 3/8" 15/16" 1" 5/16" 2" 1" 13/16" 60 5600 8900 3500 5500
BQ2GEO12C 1/2" 1/2" BoxBolt Size 2 3-1/8" 11/16" 1-7/8" 1" 5/16" 2" 1" 13/16" 60 5600 8900 3500 5500
BQ3GEO12C 1/2" 1/2" BoxBolt Size 3 4" 1-1/2" 2-11/16" 1" 5/16" 2" 1" 13/16" 60 5600 8900 3500 5500
BQ1GEO16C 5/8" 5/8" BoxBolt Size 1 3" 3/8" 1-3/8" 1-7/16" 3/8" 2-3/16" 1-1/16" 1-1/16" 140 9200 16100 5700 10100
BQ2GEO16C 5/8" 5/8" BoxBolt Size 2 4" 1" 2-5/16" 1-7/16" 3/8" 2-3/16" 1-1/16" 1-1/16" 140 9200 16100 5700 10100
BQ3GEO16C 5/8" 5/8" BoxBolt Size 3 4-3/4" 2" 3-1/16" 1-7/16" 3/8" 2-3/16" 1-1/16" 1-1/16" 140 9200 16100 5700 10100
BQ1GEO20C 3/4" 3/4" BoxBolt Size 1 4" 1/2" 1-13/16" 1-13/16" 7/16" 2-3/4" 1-3/8" 1-3/8" 220 17000 26300 10800 16400
BQ2GEO20C 3/4" 3/4" BoxBolt Size 2 4-3/4" 1-3/16" 3" 1-13/16" 7/16" 2-3/4" 1-3/8" 1-3/8" 220 17000 26300 10800 16400
BQ3GEO20C 3/4" 3/4" BoxBolt Size 3 6" 2-9/16" 4" 1-13/16" 7/16" 2-3/4" 1-3/8" 1-3/8" 220 17000 26300 10800 16400

Hole Dimensions and Positioning

Box Bolt Size Dim
A

Dim
B

Dim
C
1/2 2 13/16 13/16
5/8 2-3/16 13/16 1-1/8
3/4 2-3/4 1 1-3/8

Minimum edge distance = Dim B + the thickness of hollow section