Nimonic 80A Socket Head Cap Screws
ISO 4762ASTM B637
Nimonic 80A socket head cap screws pair a precipitation-hardened nickel-chromium alloy with a compact, tapped assembly form for heat shields, burner mounts, and radiant-tube housings that cycle in heat and vibration. The alloy resists creep and relaxation at elevated temperature.
- MOQ
- 100PCS
- Samples · typical
- ~20 days
- Production · typical
- 25–35 days
- Heat treatment
- Solution treated and aged
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 treated and agedSolution treatment prepares the alloy for controlled precipitation aging, which develops the strength of the ordered condition.
What we can make in Nimonic 80A
Partial thread
Use where a plain grip must span the clamped components. Match the under-head length and thread length so the screw tightens the stack before its thread runout reaches the tapped hole.
Full thread
Use for shorter component stacks and varied tapped-hole depths. The longer usable thread offers adjustment, while the screw end must clear the bottom of a blind hole.
- Drive
- Internal hex socket
- Length basis
- Under head
- Thread systems
- Metric · UNC · UNF · UNJ
- Assembly
- Tapped holes · Nuts
- Final condition
- Solution treated and aged
- Inspection
- Thread gauges · Head and shank dimensions
Manufacturing route
CNC machining suits samples and small batches. Volume heads are formed in a workable condition with the final aging route included in process planning.
Heat treatment & final condition
Solution treatment and the specified aging condition are recorded against the production lot; final dimensions are checked after thermal processing.
Finished geometry
Head geometry, bearing face, shank and thread fit are checked after the final machining and thermal operations.
Where Nimonic 80A fits — and what matters
Heat shields & furnace linings
Nimonic 80A Socket Head Cap ScrewsLoaded support blocks behind heat shields may need more than a moderate-strength furnace screw. Nimonic 80A socket screws provide precipitation-hardened hot strength in a compact, axially driven form. They suit the supporting block or retainer, while the shield itself retains its designed expansion clearance.
Connection requirements
- Tapped-hole size, thread form, and effective engagement depth
- Head diameter, head height, and socket depth for drive engagement
- Temperature range, cycling duty, and heat-number certification
Burner mounts & nozzles
Nimonic 80A Socket Head Cap ScrewsNimonic 80A socket screws can secure loaded burner brackets in restricted mounting spaces. They provide aged hot strength at small fastening points close to heated hardware. The relevant temperature is that of the screw at its actual position on the burner assembly.
Connection requirements
- Tapped-hole size, thread form, and effective engagement depth
- Head diameter, head height, and socket depth for drive engagement
- Temperature range, cycling duty, and heat-number certification
Radiant tubes & circulation fans
Nimonic 80A Socket Head Cap ScrewsOn hot fan and radiant-tube accessories, Nimonic 80A socket screws fit compact mounting positions reached along the screw axis. The precipitation-hardened alloy provides elevated-temperature strength for the attachment. Rotating hardware additionally follows its drawing's retention and balance requirements.
Connection requirements
- Tapped-hole size, thread form, and effective engagement depth
- Head diameter, head height, and socket depth for drive engagement
- Temperature range, vibration duty, and heat-number certification
Same socket head cap screw. Different material priorities.
Nimonic 80A material dataInconel 718 Socket Head Cap Screws
Inconel 718 socket head cap screws put precipitation-hardened strength into highly loaded, counterbored connections on heated test fixtures and compact machinery mounts. The internal drive reaches the screw between adjacent components. They are especially relevant when the hole pattern limits screw diameter and the drawing calls for high strength at the actual operating temperature.
Inconel X-750 Socket Head Cap Screws
Inconel X-750 socket head cap screws combine hot-strength properties with axial access for compact exhaust brackets and burner mounts. Their precipitation-treated condition is selected for the operating duty. The internal drive suits loaded attachments with little wrench clearance around the head.
Nimonic 75 Socket Head Cap Screws
Nimonic 75 socket head cap screws fit small furnace retainers, burner accessories and fixture blocks with moderate loads. Scaling resistance supports the hot exposure. A recessed, axially reached head keeps the fastener within a compact mounting envelope.
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 N07080 · heat number · ordered condition
- Final-part acceptance
- Lot-linked aging record and mechanical acceptance in the final condition.
- Dimensional record
- Thread gauges · Head and shank dimensions
- Traceability
- EN 10204 3.1 material certificate · production lot · identified packing
Build your Nimonic 80A socket head cap screw enquiry
Questions about Nimonic 80A socket head cap screws
What changes when the screw is stronger than the housing?
The housing thread can strip before the screw reaches its tensile capacity. The engagement depth and housing material therefore belong in the joint assessment alongside the screw’s final strength condition.