Incoloy 800H Eye-end / swing bolts
DIN 444ASTM B408
Incoloy 800H swing bolts combine a pivoting cover clamp with controlled-carbon, coarse-grain performance for creep duty. Eye-to-pin fit and the nut-bearing arrangement define the closed connection and its maintenance travel.
- MOQ
- 100PCS
- Samples · typical
- ~20 days
- Production · typical
- 25–35 days
- Heat treatment
- Solution annealed
EN 10204 3.1 MTC + heat-number traceability
Which standard is on your order?
Raw Material Specifications
Threads · Metric
Threads · Inch
Dimension Reference
Heat Treatment
Solution annealedThe specified solution treatment develops the controlled grain structure needed for sustained high-temperature creep duty.
What we can make in Alloy 800H
Pivot eye
Use on hinged clamps and access covers that open frequently. The eye stays on a pivot pin so the bolt swings clear of the cover slot without removing the complete fastener.
Threaded clamp
The threaded leg sets the clamp opening and tightening travel. On a slotted cover, the nut or clamping handle needs a bearing face wide enough to bridge the slot.
Swing bolt vs lifting eye
Use a swing bolt to retain and tighten a cover; specify a rated lifting component for hoisting. The pivot eye dimensions alone do not establish an allowable lifting load.
- Interface
- Eye bore · Pivot pin
- Clamping
- Threaded shank · Nut
- Use
- Hinged covers · Fixtures
- Threads
- Metric · Inch
- Final condition
- Solution annealed
- Inspection
- Eye bore · Eye thickness · Pivot-to-end length · Threads
Manufacturing route
CNC machining suits samples and small lots. Cold heading or hot forging is selected for volume production according to alloy formability, head section and size.
Heat treatment & final condition
The final solution-treated condition and grain-size requirement are recorded for the ordered H or HT grade. Final dimensions are inspected after the last thermal operation.
Finished geometry
Head geometry, bearing face, shank and thread fit are checked after the final machining and thermal operations.
Where 800H fits — and what matters
Furnaces & Heat Treatment
Retort and furnace-access coversIncoloy 800H eye-end / swing bolts pivot into and out of the closures on retort and furnace-access covers, allowing the clamp to release without removing the bolt from its hinge pin. Hot dwell, thermal expansion and repeated furnace cycles set the working load.
Power & Turbines
Hot-gas access covers and inspection closuresIncoloy 800H eye-end / swing bolts pivot into and out of the closures on hot-gas access covers and inspection closures, allowing the clamp to release without removing the bolt from its hinge pin. Hot dwell and start-stop expansion act on the supported or moving component.
Chemical Processing
Reformer access covers and hot-gas inspection closuresIncoloy 800H eye-end / swing bolts pivot into and out of the closures on reformer access covers and hot-gas inspection closures, allowing the clamp to release without removing the bolt from its hinge pin. These parts work in the heated equipment zone, where sustained loading and thermal expansion govern their section and clearance.
Same eye-end / swing bolt. Different material priorities.
Incoloy 800H material dataIncoloy 800
UNS N08800- Carbon
- ≤0.10%
- What changes
- General heat and oxidation resistance; no grain-size requirement in the family comparison.
Incoloy 800H
UNS N08810 · Current grade- Carbon
- 0.05–0.10%
- What changes
- Controlled carbon and coarse-grain condition for creep and stress-rupture duty.
Incoloy 800HT
UNS N08811- Carbon
- 0.06–0.10%
- What changes
- Tighter carbon and Al + Ti control (0.85–1.20%), with solution treatment and coarse grain for creep duty.
From drawing to documented delivery
- 01Drawing & BOMForm, dimensions and quantity
- 02Material & formingGrade, heat and manufacturing route
- 03Final inspectionGeometry, threads and ordered tests
- 04Documents & dispatchLot records and identified packing
Order documents
- Material identity
- UNS N08810 · heat number · ordered condition
- Final-part acceptance
- UNS grade, carbon and alloy chemistry, solution-treatment record and ordered grain-size evidence.
- Dimensional record
- Eye bore · Eye thickness · Pivot-to-end length · Threads
- Traceability
- EN 10204 3.1 material certificate · production lot · identified packing
Build your 800H eye-end / swing bolt enquiry
Questions about 800H eye-end / swing bolts
Is this the same as a rated lifting eye bolt?
This page covers swing-bolt cover and clamp connections. A lifting device needs a separately defined design, load rating and certification; DIN 444 geometry alone does not provide those.