the
Heavy Duty Bolt
The Heavy Duty Bolt, known as the HD Bolt, was developed as a shorter blind fixing which would offer improved performance when the shear plane being fixed falls across the legs of a standard Blind Bolt
The HD Bolt represents the optimum fixing solution when dealing with heavy weight steel sections. The unique pin locking mechanism and expanding base combine strength with a simple activation process. The only tools necessary are a hammer and spanner, rather than the specialist equipment required when using alternative products. This means that using the Heavy Duty Bolt saves on installation time and expense.
Advantages of the HD Bolt:
- Quick and simple installation
- No requirement for an oversized hole
- 1000 hours of salt spray protection provided by Zinc Flake 1000Hr SSP coating
- Makes any assembly more efficient
- Unique pin locking facility
We’re constantly developing new products and devising innovative applications. Please visit our experts guide page to learn more. If you have a specific project in mind, please get in touch using the contact details below. Our team are ready and waiting to explain exactly how Blind Bolts could help.
For detailed information on installation, please view our Heavy Duty Bolt Installation guide, Heavy Duty Bolt Fitting Instructions.
HEAVY DUTY BOLT
Technical Details
NOTE: All dimensions are in inches unless stated otherwise.
The Blind Bolt Company reserve the right to change these technical details without notice.
Heavy Duty Product Specification - Hot Dip Galvanised - Property Class 10.9# |
|||||||
| Product Code |
Box Qty |
Bolt Size |
Hole Diameter |
Clamping Range |
Depth Clearance |
Max Tightening Torque (Lbf) |
|
| Min |
Max | ||||||
| HD5000-1.75HDG | 25 | 1/2 x 1 3/4" | 1/2" | 5/16" | 3/4" | 9/16" | 35 |
| HD5000-2.50HDG | 20 | 1/2 x 2 1/2" | 1/2" | 5/16" | 1 5/8" | 9/16" | 35 |
| HD6250-2.25HDG | 25 | 5/8 x 2 1/4" | 5/8" | 13/32" | 1" | 1" | 70 |
| HD6250-3.00HDG | 20 | 5/8 x 3" | 5/8" | 13/32" | 1 5/8" | 1" | 70 |
| HD7500-2.50HDG | 15 | 3/4 x 2 1/2" | 3/4" | 1/2" | 1" | 1 1/4" | 88 |
| HD7500-3.40HDG | 10 | 3/4 x 3 1/4" | 3/4" | 1/2" | 1 3/4" | 1 1/4" | 88 |
#Property Class 10.9 means Fu = 1000 MPa
DESIGN RESISTANCES DETERMINED IN ACCORDANCE WITH AC437 |
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| Diameter | Tension Resistance | Shear Resistance | |||||||
| LRFD | ASD | LRFD | ASD | ||||||
| inch | kN | kips | kN | kips | kN | kips | kN | kips | |
| 1/2" | 35.4 | 8.0 | 22.1 | 5.0 | 33.3 | 7.5 | 20.8 | 4.7 | |
| 5/8" | 52.7 | 11.8 | 32.9 | 7.4 | 65.1 | 14.6 | 43.4 | 9.8 | |
| 3/4" | 68.5 | 15.4 | 42.8 | 9.6 | 94.1 | 21.2 | 62.5 | 14.4 | |
Physical testing in accordance with AC437 has been completed on Heavy Duty (HD)
BlindBolts, condition code SB, in carbon steel, as supplied by Henry Venables Products Ltd.
In accordance with AC437 the LRFD design strength and the ASD design strength have been determined from the test results for static shear (bearing connection) and static tension.
HEAVY DUTY BOLT
Testing Data Explained
The unique and innovative design of the HD Bolt means that certain specific criteria need to be met in order for it to be applied successfully.
Using these criteria means being aware of the way in which the dimensions of each bolt are measured, and these details are set out below.
The image above also offers a pictorial representation of each term. If you still have any questions, please get in touch with us using the contact details at the bottom of the page or by sending us an email by clicking here.
HEAVY DUTY BOLT
Fitting Instructions
The following videos visually represents the detailed installation of the Heavy Duty Bolt.
HD Bolt Installation Instruction
