Nimonic 75 Socket Head Cap Screws
ISO 4762BS HR 5
Nimonic 75 socket head cap screws pair a solid-solution nickel-chromium alloy with a compact, tapped assembly form for furnace shields, burner mounts, and carburizing fixtures under repeated heating. The alloy resists scaling at tapped joints.
- 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 Nimonic 75
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
- Annealed
- Inspection
- Thread gauges · Head and shank dimensions
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
Head geometry, bearing face, shank and thread fit are checked after the final machining and thermal operations.
Where Nimonic 75 fits — and what matters
Heat shields & furnace linings
Nimonic 75 Socket Head Cap ScrewsNimonic 75 socket screws suit compact shield-retainer blocks where a tool can approach from above but not around the head. The alloy supplies oxidation resistance for moderate-load hot attachments. Shield expansion is accommodated in the retaining arrangement, leaving the screw to secure the block rather than restrain the whole sheet.
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 75 Socket Head Cap ScrewsNimonic 75 socket screws fit small burner covers and accessory brackets between closely packed fuel-air components. They provide oxidation resistance for moderate-load attachments, with access along the screw axis during servicing.
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
Carburizing & stack fixtures
Nimonic 75 Socket Head Cap ScrewsOn furnace fixture blocks and stack accessories, Nimonic 75 socket screws provide compact, heat-resistant fastenings. Recessed heads can keep the drive out of the working envelope around the fixture. Their moderate-strength character suits locating and retaining duties where oxidation is the primary material concern.
Connection requirements
- Tapped-hole size, thread form, and effective engagement depth
- Head diameter, head height, and counterbore clearance required
- Temperature range, cycling duty, and heat-number certification
Same socket head cap screw. Different material priorities.
Nimonic 75 material dataInconel 601 Socket Head Cap Screws
Inconel 601 socket head cap screws secure compact burner mounts, retort accessories and shield retainers. Oxidation resistance is useful near hot furnace atmospheres. An internal drive reaches recessed holes where surrounding hardware prevents practical access to an external hex.
Inconel 600 Socket Head Cap Screws
Inconel 600 socket head cap screws secure small retort covers, shield retainers and furnace accessories. Heat and oxidation resistance complement the compact head form. Axial tool access is useful at counterbored mounts where nearby housings or brackets obstruct an external hex.
Nimonic 80A Socket Head Cap Screws
Nimonic 80A socket head cap screws secure compact burner brackets and furnace support blocks carrying significant hot loads. Precipitation-hardened strength is useful in these small fasteners. The internal drive provides access between adjacent hardware without clearance for an external wrench.
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 N06075 · heat number · ordered condition
- Final-part acceptance
- Grade chemistry, supplied condition and ordered mechanical requirements.
- Dimensional record
- Thread gauges · Head and shank dimensions
- Traceability
- EN 10204 3.1 material certificate · production lot · identified packing
Build your Nimonic 75 socket head cap screw enquiry
Questions about Nimonic 75 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.