Blind Bolt Technical Data

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NOTE: All dimensions are in mm unless stated otherwise.

The Blind Bolt Company reserve the right to change these technical details without notice.

Testing data explained blind bolt

Blind Bolt Product Specification Geomet 500B - Property Class 10.9

Bolt Size Box Hole Fixing thickness Anchor Depth Minimum
(Stock Number) Qty Diameter Min Max Clearance Clearance Hole Centres
M8 x 50
50 9 9 24 19 25 22
BB0850DTASM   1132" 2364" 1516" 34" 6364" 2532"
M10 x 60
40 11 10 30 23 30 26
BB1060DTASM   716" 2564" 1 316" 2932" 316" 2532"
M10 x95
20 11 25 65 23 30 26
BB1095DTASM   716" 6364" 2 916" 2932" 1 316" 2532"
M10 x 130
20 11 55 100 23 30 26
BB10130DTASM   716" 2 1164" 3 1516" 2932" 1 316" 2532"
M12 x 70
20 13 12 35 26 35 32
BB1270DTASM   12" 1532" 1 38" 1 132" 1 38" 6364"
M12 x 120
25 13 30 85 26 35 32
BB12120DTASM   12" 1 216" 3 1132" 1 132" 1 38" 6364"
M12 x 180
20 13 80 140 26 35 32
BB12180DTASM   12" 3 532" 5 23⁄64" 1 132" 1 38" 6364"
M14 x 75* 20 14.5 14 35 32 38 36
GBB1475DTASM   9/16" 9/16" 1 1/8"
1 1/4" 1 1/2" 1 1/4"
M14 x 125*  20 14.5 28 82 32 38 36
GBB14125DTASM
9/16"
1 1/8" 3 1/4" 1 1/4" 1 1/2" 1 1/4"
M14 x 185* 20 14.5 75 142 32 38 36
GBB14185DTASM
9/16" 3" 5 1/2" 1 1/4" 1 1/2" 1 1/4"
M16 x 90*
20 17 13 43 36 43 40
GBB1690DTASM   1116" 3364" 1 1164" 1 2764" 1 1116" 1 38"
M16 x 130*
15 17 40 75 36 43 40
GBB16130DTASM   1116" 1 2764" 2 6164" 1 2764" 1 1116" 1 38"
M16 x 180*
10 17 55 125 36 43 40
GBB16180DTASM   1116" 2 1164" 4 5964" 1 2764" 1 1116" 1 38"
M20 x 110*
10 22 21 56 44 56 48
GBB20110DTASM   1316" 5364" 2 1364" 1 4764" 2 1316" 1 5764"
M20 x 140*
8 22 21 86 44 56 48
GBB20140DTASM   1316" 5364" 3 2564" 1 4764" 2 1364" 1 5764"
M20 x 180*
10 22 80 120 44 56 48
GBB20180DTASM   1316" 3 532" 4 2332" 1 4764" 2 1364" 1 5764"
M20 x 250*
10 22 130 185 44 56 48
GBB20250DTASM   1316" 5 18" 7 932" 1 4764" 2 1364" 1 5764"
M24 x 130*
5 26 21 66 53 64 58
GBB24130DTASM   1 " 5364" 2 1932" 2 332" 2 3364" 2 2364"
M30 x 140*
5 32 27 60 65 72 74
GBB30140DTASM   1 14" 1 116" 2 2364" 2 916" 2 5364" 2 6164"
DESIGN RESISTANCES DETERMINED IN ACCORDANCE WITH AC 437 AND AISC 360-10
Diameter
inch (mm)
Tensile Resistance Shear Resistance Through Slot Shear Resistance Through Unslotted Threaded Shank Recommended Tightening Torque (lbf)
  LRFD ASD LRFD ASD LRDF ASD  
  kN KIPS kN KIPS kN KIPS kN KIPS kN KIPS kN KIPS  
0.345 (8) 6.8 1.53 4.2 0.94 5.8 1.30 3.6 0.81 17.0 3.82 11.3 2.54 11
0.394 (10) 9.5 2.14 5.9 1.33 13.7 3.08 8.6 1.93 26.5 5.96 17.7 3.98 18
0.472 (12) 15.1 3.39 9.4 2.11 17.8 4.00 11.1 2.50 38.2 8.59 25.4 5.71 22
0.551 (14) 22.7 5.10 14.2 3.19 24.5 5.51 15.3 3.44 52.0 11.69 34.6 7.78 28
0.630 (16) 28.4 6.38 17.8 4.00 30.7 6.90 19.2 4.32 67.9 15.26 45.2 10.16 36
0.787 (20) 45.4 10.21 28.4 6.38 54.0 12.14 33.7 7.58 106.0 23.83 70.7 15.89 48
0.945 (24) 75.4 16.95 46.5 10.45 75.7 17.02 47.3 10.63 152.7 34.33 101.8 22.89 55
1.181 (30) 110.2 24.77 68.9 15.49 110.7 24.89 69.2 15.56 238.6 53.64 159.0 35.74 63

In bearing, the resistance of a blind bolt should satisfy the requirements of AISC specification 360-10 clause J3-10, expressions J3-6a or J3-6b as required, using the nominal diameter d, of the bolt. No reduction in diameter to allow for the slot is required.

In combined tension and shear, blind bolts should satisfy the following expressions:

lrfd 250x145 1 Technical Data Blindbolt US

where:

Ft,Ed and Fv,Ed are the applied tension and shear forces respectively (LRFD or ASD values) ØRnt and Rnt /Ω are the design tension resistance (LRFD or ASD), from the above table. ØRnv and Rnv /Ω are the design shear resistance (LRFD or ASD) from the above table. The above resistances and interaction criteria make no allowance for the deformation or yield of the connected part.

Important Note

The above tension resistances make no allowance for the deformation or yield of the connected parts. An appropriate design model for connections in hollow sections can be found in Joints and Steel Construction: Simple Connections.

Stainless Steel Blind Bolts Technical Data

Blind Bolt Product Specification Stainless Steel A4-70 

Bolt Size Box Hole Fixing thickness Anchor Depth Minimum
(Stock Number) Qty Diameter Min Max Clearance Clearance Hole Centres
M8 x 50
50 9 9 24 19 25 22
BB0850A4ASM   1132" 2364" 1516" 34" 6364" 2532"
M10 x 60
40 11 10 30 23 30 26
BB1060A4ASM   716" 2564" 1 316" 2932" 316" 2532"
M12 x 90
20 13 12 55 26 35 32
BB1290A4ASM   12" 1532" 1164" 1 132" 1 38" 6364"
M16 x 100*
20 17 13 53 36 43 40
GBB16100A4ASM   1116" 3364" 2 364" 1 2764" 1 1116" 1 38"
DESIGN RESISTANCES DETERMINED IN ACCORDANCE WITH AC 437 AND AISC DESIGN GUIDE 27
Diameter
inch (mm)
Tensile Resistance Shear Resistance
Through
Slot  
Shear Resistance Through
Unslotted Threaded Shank  
Recommended Tightening Torque (lbf)
  LRFD ASD LRFD ASD LRFD ASD  
  kN KIPS kN KIPS kN KIPS kN KIPS kN KIPS kN KIPS  
0.345 (8) 3.9 0.88 2.4 0.54 6.7 1.51 4.5 1.01 11.9 2.68 7.9 1.78 11
0.394 (10) 9.2 2.07 5.8 1.30 11.4 2.56 7.6 1.71 18.6 4.18 12.4 2.79 16
0.472 (12) 14.4 3.24 9.0 2.02 15.9 3.57 10.6 2.38 26.7 6.00 17.8 4.00 20
0.630 (16) 31.0 6.97 19.4 4.36 31.0 6.97 20.6 4.63 47.5 10.68 31.7 7.13 33

For bearing in carbon steel elements, the resistance of a stainless steel blind bolt should satisfy the requirements of AISC specification 360-10 clause J3-10, expressions J3-6a or J3-6b as required, using the nominal diameter d, of the bolt. No reduction in diameter to allow for the slot is required.

The bolt should satisfy the requirements of AISC Design Guide 27, section 9.3.6, expressions 9-1 or 9-4 as required, using the nominal diameter d, of the bolt. No reduction in diameter to allow for the slot is required. It may be assumed that for the common grade of austenitic stainless steel, Fu = 515 N/mm2 (75 ksi).

In combined tension and shear, stainless steel blind bolts should satisfy the following expressions:

 

lrfd 250x145 1 1 Technical Data Blindbolt US

where:

Ft,Ed and Fv,Ed are the applied tension and shear forces respectively (LRFD or ASD values) ØRnt and Rnt /Ω are the design tension resistance (LRFD or ASD), from the above table.ØRnv and Rnv /Ω are the design shear resistance (LRFD or ASD) from the above table. The above resistances and interaction criteria make no allowance for the deformation or yield of the connected part.

Important Note

The above resistances and interaction criteria make no allowance for the deformation or yield of the connected part.

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