Imperial Technical Data

Blind Bolt Product Specification High Tensile Steel

Thread Size Hole Size
+.0625
Product Code Qty Box Socket Size Fixing Thickness Anchor
Clearance
Depth
Clearance
Weight Per Box (lb)
           Min  Max      
5/16-18 UNC .3125 - .375 BBS-3125-2.0 50 1/2  0.406 0.813 0.75  1.063  2.25
3/8-16 UNC .375 - .4375 BBS-3750-2.375 40 9/16 0.625 1.156 1.000 1.313 3.15
3/8-16 UNC .375 - .4375 BBS-3750-5.0 20 9/16 2.063 3.656 1.000 1.313 3.8
1/2-13 UNC .500 - .5625 BBS-5000-2.755 20 3/4 0.500 1.188 1.125 1.375 3
5/8-11 UNC .625 - .6875 BBGS-6250-3.54* 20 15/16 0.688 1.563 1.563 1.813 6
3/4 - 10 UNC .750 - .8125 BBGS-7500-4.3* 10 1-1/8 1.500 2.250 1.813 2.25 6
7/8 - 9 UNC .875 - .9375 BBGS-8750-5.5* 10 1-5/16 2.000 3.188 1.875 2.313 7
1.0-8 UNC 1.000 - 1.0625 BBGS-1000-5.1* 5 1-1/2 0.875 2.375 2.125 2.406 5

* We strongly recommend the use of our safety gauges when installing these bolts


High Tensile Steel Performance Data 40,000 PSI Tensile Strength

Thread Size Product Code Stress Area (IN2) Bolt Steel Grade Ultimate Tensile Strength (LBF) Ultimate Shear Strength (LBF) Sugg. Torque
(ft/lbs)
5/16-18 UNC BBS-3125-2.0 .052 High Tensile Steel 2000 2300 7
3/8-16 UNC BBS-3750-2.375 .077 High Tensile Steel 3000 3500 15
3/8-16 UNC BBS-3750-5.0 .077 High Tensile Steel 3000 3500 15
1/2-13 UNC BBS-5000-2.755 .141 High Tensile Steel 5600 6100 35
5/8-11 UNC BBGS-6250-3.54* .226 High Tensile Steel 8000 10000 80
3/4 - 10 UNC BBGS-7500-4.3* .334 High Tensile Steel 13300 15000 150
7/8 - 9 UNC BBGS-8750-5.5* .462 High Tensile Steel 18000 20000 215
1.0-8 UNC BBGS-1000-5.1* .606 High Tensile Steel 24000 26000 335

WARNING: DO NOT EXCEED MAXIMUM TORQUE SETTINGS. ENSURE ANCHOR IS IN THE FULLY OPEN POSITION BEFORE APPLYING TORQUE OR THE PIN WILL SHEAR.

Shear strength was determined across the threaded area. Should the shear plane fall below the minimum fixing thickness (across the hollow section) shear strength will be reduced and must be recalculated. Performance data listed is the ultimate failure load. BLIND BOLT North America recommends an appropriate factor of safety when incorporating the Blind Bolt products into your application. Additional testing available upon request. Please refer to our PDF download for full technical data.

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