At Ananka Fasteners Pvt Ltd, we manufacture fasteners to the dimensional requirements of IFI 115. Flange 12-point screws (inch series) – high-strength cap screws with a 12-point (double-hex) wrenching head and an integral washer-face flange for high clamp load and improved bearing, per Industrial Fasteners Institute IFI-115. Typically alloy steel, 170-180 ksi. Sizes 1/4 in to 3/4 in.
Flange 12-point screws (inch series) – high-strength cap screws with a 12-point (double-hex) wrenching head and an integral washer-face flange for high clamp load and improved bearing, per Industrial Fasteners Institute IFI-115. Typically alloy steel, 170-180 ksi. Sizes 1/4 in to 3/4 in.
12-point flange screw (inch)
Key dimensions for common sizes are listed below.
| Size | Threads/in (UNRC/UNRF) | Wrench size across flats E (in) | Flange dia (in) | Head height (in) |
|---|---|---|---|---|
| 1/4 | 28 | 0.313 | 0.50 | 0.203 |
| 5/16 | 24 | 0.375 | 0.62 | 0.250 |
| 3/8 | 24 | 0.438 | 0.73 | 0.297 |
| 7/16 | 20 | 0.500 | 0.84 | 0.344 |
| 1/2 | 20 | 0.563 | 0.95 | 0.391 |
| 9/16 | 18 | 0.625 | 1.06 | 0.438 |
| 5/8 | 18 | 0.688 | 1.17 | 0.484 |
| 3/4 | 16 | 0.813 | 1.40 | 0.578 |
Unified inch thread, class 3A (UNRF/UNRC), rolled after heat treat
[‘IFI 116’, ‘ASME B18.2.5M’, ‘SAE J1199’, ‘ISO 4162’]
For the official Industrial Fasteners Institute (IFI) standards catalogue, see the Industrial Fasteners Institute (IFI) standards listing. This external reference is provided for standards identification; the purchaser should verify the current edition applicable to the order.
We produce IFI 115 fasteners in carbon and alloy steel, austenitic, duplex and super-duplex stainless, and high-nickel, titanium and copper alloys — for structural, flanged, machinery and process applications worldwide.
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.
Ananka Fasteners supplies every lot with full material traceability and third-party testing on request.
Flange 12-point screws (inch series) – high-strength cap screws with a 12-point (double-hex) wrenching head and an integral washer-face flange for high clamp load and improved bearing, per Industrial Fasteners Institute IFI-115. Typically alloy steel, 170-180 ksi. Sizes 1/4 in to 3/4 in.
Ananka Fasteners manufactures IFI 115 in sizes from 1/4–3/4. See the Dimensional Table above for the complete size breakdown.
Unified inch thread, class 3A (UNRF/UNRC), rolled after heat treat
We produce IFI 115 fasteners in carbon and alloy steel, austenitic, duplex and super-duplex stainless, and high-nickel, titanium and copper alloys — for structural, flanged, machinery and process applications worldwide.
Yes. For a quotation, provide the required nominal size, material grade, quantity and any inspection or certificate requirements.
Need a fastener manufactured to IFI 115 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: IFI 115 requirement, nominal size, material grade, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Dimensions compiled per IFI 115 and industry references; provided for reference only — confirm against the current edition of the standard before design use.
