- Dimensional Conformance. Direct tension indicators shall have the following characteristics inspected to ASME B18.18.2, page M-11, to the inspection levels shown:
Characteristic
Inside Diameter - B (Inspection Level)
Protrusion tangential diameter - B (Inspection Level)
Visual - C (Inspection Level)
If verifiable in-process inspection is used - Nominal direct tension indicator sizes are intended for use with fasteners of the same nominal diameter.
 
                    Unit of Measure
                    
               
        
            Specifications
                                                                                Product | 
                                                                        N/A Structural Bolting | 
                                                                                Unit of Measure | 
                                                                        N/A English | 
                                                                                Type | 
                                                                        N/A Type A490 | 
| Direct Tension Indicator Size1 | N/A 1-1/4 in | 
                                                                                Min. Inside Dia. (A) | 
                                                                        N/A 1.311 in | 
                                                                                Max. Inside Dia. (A) | 
                                                                        N/A 1.315 in | 
                                                                                Max. Protrusion Tangential Dia. (B) | 
                                                                        N/A 1.800 in | 
                                                                                Min. Outside Dia. (C) | 
                                                                        N/A 2.730 in | 
                                                                                Max. Outside Dia. (C) | 
                                                                        N/A 2.750 in | 
                                                                                No. of Protrusions (Equally Spaced) | 
                                                                        N/A 8 | 
                                                                                Min. Thickness without Protrusion | 
                                                                        N/A 0.158 in | 
                                                                                Max. Thickness with Protrusion | 
                                                                        N/A 0.280 in | 
- 1 Nominal direct tension indicator sizes are intended for use with fasteners of the same nominal diameter.
 
Email Us Today: 
Call Us Toll Free: