Incoloy 800 Phillips pan head screws
ISO 7045ASTM B408
Incoloy 800 pan-head screws bring heat and oxidation resistance for thermal equipment to panel and cover fixings. The cross recess transfers installation torque while the head footprint spreads load into the panel.
- MOQ
- 100PCS
- Samples · typical
- ~20 days
- Production · typical
- 25–35 days
- Heat treatment
- 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
AnnealedAnnealing reduces work hardening and restores ductility for the specified supplied condition.
What we can make in Alloy 800
Pan head
Use for panels and covers that can accept a projecting head, avoiding a countersink in thin sheet. The flat underside needs sufficient seat area around the clearance hole.
Phillips drive
Use a matching Phillips type H driver for service and assembly tools. A Pozidriv type Z bit is not the same fit; mismatched recess engagement increases cam-out and head damage.
Machine screw
Use with a tapped boss, nut or threaded insert in equipment panels. Match screw length to the available engagement so a blind hole does not stop the screw before the cover is clamped.
- Drive
- Type H cross recess
- Head
- Pan head
- Length basis
- Under head
- Thread
- Machine screw thread
- Final condition
- Annealed
- Inspection
- Head diameter · Recess · Under-head 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 ordered annealed or solution-treated state is retained in the lot record; forming and machining do not replace the specified thermal condition.
Finished geometry
The cross recess is checked for tool engagement and concentricity, followed by thread gauging and under-head length inspection.
Where 800 fits — and what matters
Furnaces & Heat Treatment
Furnace shields and casing panelsIncoloy 800 phillips pan head screws attach furnace shields and casing panels through a broad pan-head bearing face where a projecting head is acceptable and a cross-recess tool can reach the screw. Hot dwell, thermal expansion and repeated furnace cycles set the working load.
Power & Turbines
Hot-duct shields and thermal bafflesIncoloy 800 phillips pan head screws attach hot-duct shields and thermal baffles through a broad pan-head bearing face where a projecting head is acceptable and a cross-recess tool can reach the screw. Hot dwell and start-stop expansion act on the supported or moving component.
Chemical Processing
Process-heater shields and bafflesIncoloy 800 phillips pan head screws attach process-heater shields and baffles through a broad pan-head bearing face where a projecting head is acceptable and a cross-recess tool can reach the screw. These parts work in the heated equipment zone, where sustained loading and thermal expansion govern their section and clearance.
Same phillips pan head screw. Different material priorities.
Incoloy 800 material dataIncoloy 800
UNS N08800 · Current grade- Carbon
- ≤0.10%
- What changes
- General heat and oxidation resistance; no grain-size requirement in the family comparison.
Incoloy 800H
UNS N08810- 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 N08800 · heat number · ordered condition
- Final-part acceptance
- Grade chemistry, supplied condition and ordered mechanical requirements.
- Dimensional record
- Head diameter · Recess · Under-head length · Threads
- Traceability
- EN 10204 3.1 material certificate · production lot · identified packing
Build your 800 phillips pan head screw enquiry
Questions about 800 phillips pan head screws
What controls installation on a thin panel?
The panel’s bearing strength and the engaged thread can govern before the screw’s tensile strength. Match the head footprint and driver recess to the tightening method and the actual panel or insert.