This page presents the complete ASME B16.5 dimensional standard as used by Ananka Fasteners Pvt Ltd across our fastener catalogue. Pipe flanges and flanged fittings covering NPS 1/2 through NPS 24 in Class 150 through Class 2500 raised-face and ring-joint facings. Fixes the stud-bolt length required for each flange size and rating. The dimension table below reflects the values manufactured to at Ananka in every grade we stock.
Pipe flanges and flanged fittings covering NPS 1/2 through NPS 24 in Class 150 through Class 2500 raised-face and ring-joint facings. Fixes the stud-bolt length required for each flange size and rating.
| Standard | ASME B16.5 | Family | ASME |
| Units | Inch | Nominal Size Range | NPS 1/2 – NPS 24 |
| Thread Standard | ASME B1.1 UNC / 8UN | Fastener Types Covered at Ananka | Stud Bolt (Threaded Both Ends) |
| Grades Available | 79 (Nickel 200 through Zeron 100 – see Section 4) | Related Standards | ASME B16.47 (large-diameter flanges) |
The ASME B16.5 specification governs the physical geometry of this product. The tolerances below ensure a secure, reliable mate under service loads. Stud bolt diameter, quantity and length are set by the mating flange size and pressure class per ASME B16.5. Values shown are for raised-face flanges; ring-joint flanges require longer studs.
| Flange NPS | Bolt Dia (in) | No. of Bolts | Stud Length Class 150 (in) | Stud Length Class 300 (in) |
|---|---|---|---|---|
| 1/2″ | 1/2 | 4 | 2-1/4 | 2-1/2 |
| 3/4″ | 1/2 | 4 | 2-1/2 | 2-3/4 |
| 1″ | 1/2 | 4 | 2-1/2 | 3 |
| 1-1/2″ | 1/2 | 4 | 3 | 3-1/2 |
| 2″ | 5/8 | 4 | 3-1/2 | 4-1/4 |
| 3″ | 5/8 | 4 | 4 | 4-1/2 |
| 4″ | 5/8 | 8 | 4 | 5 |
| 6″ | 3/4 | 8 | 4-1/2 | 5-1/2 |
At Ananka, the following fastener geometries are produced to ASME B16.5:
Every grade in the Ananka catalogue is available in this dimensional standard:
Threads are cut to ASME B1.1 UNC / 8UN. Standard tolerance class is 6g (external) / 6H (internal) for metric, or Class 2A/3A for inch series. Fine-thread and interference-fit variants are available on request.
Every fastener produced to ASME B16.5 undergoes 100% dimensional inspection with calibrated gauges. Traceability is maintained from mill certificate to shipment.
For technical documentation and quotations, buyers can also review the Ananka Fasteners manufacturing and supply range or contact the team through the fastener enquiry and technical support page.
This datasheet references ASME B16.5 for dimensional requirements. The applicable standard edition and purchase requirements should be confirmed for every project.
For ASME standards information, see the ASME standards catalogue. This external reference is provided for standards identification; the purchaser should verify the current edition applicable to the order.
Pipe flanges and flanged fittings covering NPS 1/2 through NPS 24 in Class 150 through Class 2500 raised-face and ring-joint facings. Fixes the stud-bolt length required for each flange size and rating.
ASME B16.5 is manufactured by Ananka in Stud Bolt (Threaded Both Ends), across a NPS 1/2 – NPS 24 size range.
Ananka Fasteners manufactures Stud Bolt (Threaded Both Ends) to ASME B16.5. See the Fastener Types table above for the full list.
Threads are cut to ASME B1.1 UNC / 8UN. See Section 5 above for the tolerance class.
79 (Nickel 200 through Zeron 100 – see Section 4) available in this dimensional standard. See Section 4 above for the full grade list.
Yes. For a quotation, provide the required nominal size, material grade, quantity and any inspection or certificate requirements.
Need a fastener manufactured to ASME B16.5 for an industrial project? Send the required fastener type, size, material grade, quantity and certification requirements to Ananka Fasteners. Our team can review the requirement and provide technical and commercial information for standard or custom configurations.
Recommended RFQ details: ASME B16.5 requirement, fastener type, nominal size, material grade, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
