The Original Boxbolt® #BQ3Z16

The original BoxBolt, also known as Blind bolt fasteners, are used for faster, easier, blind structural connections suited for every environment and application.

The BoxBolt is often used on high profile projects where building aesthetics are essential, and can be adapted to suit the requirements of our client and the architect to make the connection pleasing to the eye

Check out our case studies to learn more about how the BoxBolt has been used in a variety of specific applications:

One World Trade Center

Mercedes-Benz Stadium

Tunnel Reinforcement

See specification charts

The Original BoxBolt, also known as Blind Bolt Fasteners, from LNA Solutions

How It Works

The Original BoxBolt® Diagram from LNA Solutions

how the original BoxBolt from LNA Solutions works

How It Works

The Original BoxBolt is a fully tested and approved blind structural bolt solution for connecting to hollow section steel, or structural connections which access is restricted to only one side. The BoxBolt is suitable for rectangular, square, and circular hollow sections. The structural steel anchor bolt features a hexagon head designed to be installed with a standard wrench. Our unique BoxSok installation tool is also available for faster installation.

Features & Benefits

The BoxBolt is available in three finishes:

Zinc plated for the less aggressive environments
Hot Dip Galvanized for the more aggressive environments
Stainless Steel for the most demanding of applications

These finishes combined with three lengths of BoxBolt make it extremely flexible to suit every environment and application.

Materials:

Mild steel to BS EN 10083 Grade 1.1151
Stainless steel to BS EN 10088 Grade 1.4401

View BoxBolt® Structural Anchors Applications

BoxBolt Tech Data Zinc
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Catalog page 7.

Part Number & Description

Dimensional Information

Load Information

Finish

Product Code

Bolt Dia

Description

Setscrew Length

Clamping Range (Min)

Clamping Range (Max)

Across Flats of Shoulder

Shoulder
Thickness

Sleeve Dia

Hole Size
Dia

Available Strength (lbs.) (Tensile)

Available Strength (lbs.) (Shear)

Torque (ft lb)

Zinc

BQ1Z06*

1/4"

1/4" BoxBolt Size 1

1-3/4"

1/8"

7/8"

11/16"

3/16"

3/8"

7/16"

2,872

4,793

BQ1Z08

5/16"

5/16" BoxBolt Size 1

3/16"

7/8"

1/4"

1/2"

9/16"

5,071

5,917

BQ2Z08

5/16"

5/16" BoxBolt Size 2

2-3/4"

11/16"

1-13/16"

7/8"

1/4"

1/2"

9/16"

5,071

5,917

BQ3Z08

5/16"

5/16" BoxBolt Size 3

3-9/16"

1-3/16"

2-5/8"

7/8"

1/4"

1/2"

9/16"

5,071

5,917

BQ1Z10

3/8"

3/8" BoxBolt Size 1

3/16"

7/8"

15/16"

1/4"

11/16"

3/4"

9,718

10,985

BQ2Z10

3/8"

3/8" BoxBolt Size 2

2-3/4"

11/16"

1-11/16"

15/16"

1/4"

11/16"

3/4"

9,718

10,985

BQ3Z10

3/8"

3/8" BoxBolt Size 3

3-9/16"

1-3/8"

2-1/2"

15/16"

1/4"

11/16"

3/4"

9,718

10,985

BQ1Z12

1/2"

1/2" BoxBolt Size 1

2-3/16"

3/16"

5/16"

3/4"

13/16"

13,015

12,676

BQ2Z12

1/2"

1/2" BoxBolt Size 2

3-1/8"

3/4"

5/16"

3/4"

13/16"

13,015

12,676

BQ3Z12

1/2"

1/2" BoxBolt Size 3

1-9/16"

2-3/4"

5/16"

3/4"

13/16"

13,015

12,676

BQ1Z16

5/8"

5/8" BoxBolt Size 1

3/16"

1-3/8"

1-7/16”

3/8"

1-1/16"

26,199

29,578

140

BQ2Z16

5/8"

5/8" BoxBolt Size 2

1-3/16"

2-3/8"

1-7/16"

3/8"

1-1/16"

26,199

29,578

140

BQ3Z16

5/8"

5/8" BoxBolt Size 3

4-3/4"

2-3/16"

3-1/8"

1-7/16"

3/8"

1-1/16"

26,199

29,578

140

BQ1Z20

3/4"

3/4" BoxBolt Size 1

5/16"

1-5/8"

1-13/16"

7/16"

1-1/4"

1-5/16"

36,932

33,804

221

BQ2Z20

3/4"

3/4" BoxBolt Size 2

4-3/4"

1-3/8"

2-13/16"

1-13/16"

7/16"

1-1/4"

1-5/16"

36,932

33,804

221

BQ3Z20

3/4"

3/4" BoxBolt Size 3

2-9/16"

1-13/16"

7/16"

1-1/4"

1-5/16"

36,932

33,804

221

BoxBolt Tech Data HDG
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Catalog page 7.

Part Number & Description

Dimensional Information

Load Information

Finish

Product Code

Bolt Dia

Description

Setscrew Length

Clamping Range (Min)

Clamping Range (Max)

Across Flats of Shoulder

Shoulder
Thickness

Sleeve Dia

Hole Size
Dia

Available Strength (lbs.) (Tensile)

Available Strength (lbs.) (Shear)

Torque (ft lb)

HDG

BQ1G08

5/16"

5/16" BoxBolt Size 1

3/16"

7/8"

1/4"

1/2"

9/16"

5,071

5,917

BQ2G08

5/16"

5/16" BoxBolt Size 2

2-3/4"

11/16"

1-13/16"

7/8"

1/4"

1/2"

9/16"

5,071

5,917

BQ3G08

5/16"

5/16" BoxBolt Size 3

3-9/16"

1-3/16"

2-5/8"

7/8"

1/4"

1/2"

9/16"

5,071

5,917

BQ1G10

3/8"

3/8" BoxBolt Size 1

3/16"

7/8"

15/16"

1/4"

11/16"

3/4"

9,718

10,985

BQ2G10

3/8"

3/8" BoxBolt Size 2

2-3/4"

11/16"

1-11/16"

15/16"

1/4"

11/16"

3/4"

9,718

10,985

BQ3G10

3/8"

3/8" BoxBolt Size 3

3-9/16"

1-3/8"

2-1/2"

15/16"

1/4"

11/16"

3/4"

9,718

10,985

BQ1G12

1/2"

1/2" BoxBolt Size 1

2-3/16"

3/16"

5/16"

3/4"

13/16"

13,015

12,676

BQ2G12

1/2"

1/2" BoxBolt Size 2

3-1/8"

3/4"

5/16"

3/4"

13/16"

13,015

12,676

BQ3G12

1/2"

1/2" BoxBolt Size 3

1-9/16"

2-3/4"

5/16"

3/4"

13/16"

13,015

12,676

BQ1G16

5/8"

5/8" BoxBolt Size 1

3/16"

1-3/8"

1-7/16”

3/8"

1-1/16"

26,199

29,578

140

BQ2G16

5/8"

5/8" BoxBolt Size 2

1-3/16"

2-3/8"

1-7/16"

3/8"

1-1/16"

26,199

29,578

140

BQ3G16

5/8"

5/8" BoxBolt Size 3

4-3/4"

2-3/16"

3-1/8"

1-7/16"

3/8"

1-1/16"

26,199

29,578

140

BQ1G20

3/4"

3/4" BoxBolt Size 1

5/16"

1-5/8"

1-13/16"

7/16"

1-1/4"

1-5/16"

36,932

33,804

221

BQ2G20

3/4"

3/4" BoxBolt Size 2

4-3/4"

1-3/8"

2-13/16"

1-13/16"

7/16"

1-1/4"

1-5/16"

36,932

33,804

221

BQ3G20

3/4"

3/4" BoxBolt Size 3

2-9/16"

1-13/16"

7/16"

1-1/4"

1-5/16"

36,932

33,804

221

BoxBolt Tech Data SS
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Catalog page 7.

Part Number & Description

Dimensional Information

Load Information

Finish

Product Code

Bolt Dia

Description

Setscrew Length

Clamping Range (Min)

Clamping Range (Max)

Across Flats of Shoulder

Shoulder
Thickness

Sleeve Dia

Hole Size
Dia

Available Strength (lbs.) (Tensile)

Available Strength (lbs.) (Shear)

Torque (ft lb)

BQ1S06

1/4"

1/4" BoxBolt Size 1

1-3/4"

1/8"

7/8"

11/16"

3/16"

3/8"

7/16"

2,872

4,793

BQ1S08

5/16"

5/16" BoxBolt Size 1

3/16"

7/8"

1/4"

1/2"

9/16"

4,314

6,787

BQ2S08

5/16"

5/16" BoxBolt Size 2

2-3/4"

11/16"

1-13/16"

7/8"

1/4"

1/2"

9/16"

4,314

6,787

BQ3S08

5/16"

5/16" BoxBolt Size 3

3-9/16"

1-3/16"

2-5/8"

7/8"

1/4"

1/2"

9/16"

4,314

6,787

BQ1S10

3/8"

3/8" BoxBolt Size 1

3/16"

7/8"

15/16"

1/4"

11/16"

3/4"

6,839

12,222

BQ2S10

3/8"

3/8" BoxBolt Size 2

2-3/4"

11/16"

1-11/16"

15/16"

1/4"

11/16"

3/4"

6,839

12,222

BQ3S10

3/8"

3/8" BoxBolt Size 3

3-9/16"

1-3/8"

2-1/2"

15/16"

1/4"

11/16"

3/4"

6,839

12,222

BQ1S12

1/2"

1/2" BoxBolt Size 1

2-3/16"

3/16"

5/16"

3/4"

13/16"

9,945

15,543

BQ2S12

1/2"

1/2" BoxBolt Size 2

3-1/8"

3/4"

5/16"

3/4"

13/16"

9,945

15,543

BQ3S12

1/2"

1/2" BoxBolt Size 3

1-9/16"

2-3/4"

5/16"

3/4"

13/16"

9,945

15,543

BQ1S16

5/8"

5/8" BoxBolt Size 1

3/16"

1-3/8"

1-7/16”

3/8"

1-1/16"

18,523

28,191

140

BQ2S16

5/8"

5/8" BoxBolt Size 2

1-3/16"

2-3/8"

1-7/16"

3/8"

1-1/16"

18,523

28,191

140

BQ3S16

5/8"

5/8" BoxBolt Size 3

4-3/4"

2-3/16"

3-1/8"

1-7/16"

3/8"

1-1/16"

18,523

28,191

140

BQ1S20

3/4"

3/4" BoxBolt Size 1

5/16"

1-5/8"

1-13/16"

7/16"

1-1/4"

1-5/16"

28,909

47,203

221

BQ2S20

3/4"

3/4" BoxBolt Size 2

4-3/4"

1-3/8"

2-13/16"

1-13/16"

7/16"

1-1/4"

1-5/16"

28,909

47,203

221

BQ3S20

3/4"

3/4" BoxBolt Size 3

2-9/16"

1-13/16"

7/16"

1-1/4"

1-5/16"

28,909

47,203

221

BoxBolt Hole Dimensions and Positioning
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catalog page 8.

Box Bolt Size	Dim A	Dim B	Dim C
1/4	1-3/16	7/16	7/16
5/16	1-3/8	1/2	9/16
3/8	1-9/16	9/16	3/4
1/2	2	13/16	13/16
5/8	2-3/16	13/16	1-1/16
3/4	2-3/4	1	1-5/16

BoxBolt Tech Data HDG METRIC
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Select the type of finish you require on the BoxBolt by replacing the “_ “ in the code with a Z for zinc plated, a G for Hot Dip Galvanized or an S for Stainless Steel.

Example: BQ2G12 is a 1/2” BoxBolt size 2 in Hot Dip Galvanized Finish

Part Number & Description				Dimensional Information								Load Information
Finish	Product Code	Bolt Dia	Description	Setscrew Length	Clamping Range (Min)	Clamping Range (Max)	Across Flats of Shoulder	Shoulder Thickness	Sleeve Dia	Hole Size Dia	Torque (Nm)	Galvanised / Zinc Plate Tensile (kN)	Galvanised / Zinc Plate Shear (kN)	Stainless Steel Tensile (kN)	Stainless Steel Shear (kN)
Zinc, Hot Dip Galvanized, Stainless Steel	BQ1_08	M08	M08 BoxBolt Size 1	50.8	4.762	25.4	22.225	6.35	12.7	14.287	25	12.86	21.07	13.29	26.14
	BQ2_08	M08	M08 BoxBolt Size 2	69.85	17.462	46.037	22.225	6.35	12.7	14.287	25	12.86	21.07	13.29	26.14
	BQ3_08	M08	M08 BoxBolt Size 3	90.487	30.162	66.675	22.225	6.35	12.7	14.287	25	12.86	21.07	13.29	26.14
	BQ1_10	M10	M10 BoxBolt Size 1	50.8	4.762	22.225	23.813	6.35	17.462	19.05	45	24.07	37	21.7	47.07
	BQ2_10	M10	M10 BoxBolt Size 2	69.85	17.462	42.862	23.813	6.35	17.462	19.05	45	24.07	37	21.7	47.07
	BQ3_10	M10	M10 BoxBolt Size 3	90.487	34.925	63.5	23.813	6.35	17.462	19.05	45	24.07	37	21.07	47.07
	BQ1_12	M12	M12 BoxBolt Size 1	55.563	4.762	25.4	25.4	7.938	19.05	20.637	80	29.43	48.29	30.64	59.86
	BQ2_12	M12	M12 BoxBolt Size 2	79.375	19.05	50.8	25.4	7.938	19.05	20.637	80	29.43	48.29	30.64	59.86
	BQ3_12	M12	M12 BoxBolt Size 3	101.6	39.688	69.85	25.4	7.938	19.05	20.637	80	29.43	48.29	30.64	59.86
	BQ1_16	M16	M16 BoxBolt Size 1	76.2	4.762	34.925	36.512	9.525	25.4	26.987	190	52.29	88.21	57.07	108.57
	BQ2_16	M16	M16 BoxBolt Size 2	101.6	30.162	60.325	36.512	9.525	25.4	26.987	190	52.29	88.21	57.07	108.57
	BQ3_16	M16	M16 BoxBolt Size 3	120.65	55.563	79.375	36.512	9.525	25.4	26.987	190	52.29	88.21	57.07	108.57
	BQ1_20	M20	M20 BoxBolt Size 1	101.6	7.938	41.275	46.037	11.112	31.75	33.337	300	92	145.32	89.07	181.79
	BQ2_20	M20	M20 BoxBolt Size 2	120.65	34.925	71.438	46.037	11.112	31.75	33.337	300	92	145.32	89.07	181.79
	BQ3_20	M20	M20 BoxBolt Size 3	152.4	65.087	101.6	46.037	11.112	31.75	33.337	300	92	145.32	89.07	181.7

The Original Boxbolt® #BQ3Z16

How It Works

How It Works

Features & Benefits

Measurements & Specifications

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