Typical MOQ
10pieces
Subject to product and material review.
Conditions
MOQ is typically 10 pieces, subject to product, material and manufacturing-route review.
Inconel X-750 Hex Bolts
MaterialInconel X-750Change · 45 grades
- Material
- Inconel X-750 · UNS N07750
- Material focus
- Age-hardened strength
- Common applications
- Gas-turbine assemblies · heat-treatment fixtures
- Main elementslimits · wt.%
- Ni + Co ≥70%
- Cr 14–17%
- Fe 5–9%
- Ti 2.25–2.75%
- Al 0.40–1.00%
- Nb + Ta 0.70–1.20%
Standards & threads
Finished boltDrawing-defined acceptanceNo grade-specific finished-bolt specification was established in the reviewed sources.
Set tensile / yield / hardness acceptance after the specified X-750 heat treatment; identify any elevated-temperature or relaxation qualification separately.
A B637 material route does not establish a finished-bolt class. Do not borrow the F2281 718 classification for X-750.
Raw material specificationASTM B637UNS N07750
N07750 · bar, forgings and forging stock
Identify the ordered heat-treatment sequence. Spring wire and bolt stock do not share an automatic acceptance basis.
Dimensions · metricISO 4014 / ISO 4017Coarse pitch · partial-thread bolts / full-thread hex screws
Dimensions · inchASME B18.2.1Inch hex bolts / hex cap screws
Select the bolt or cap-screw pattern, head dimensions and thread length. Hex and heavy hex are different choices.
Threads · metricISO 261 / ISO 965-1Metric M · pitch plan and tolerance system
Threads · UNC / UNFASME B1.1Unified inch · coarse / fine series
State diameter, TPI, series and external class: e.g. 1/2-13 UNC-2A or 1/2-20 UNF-2A. Select 2A / 3A with the mating-thread fit; UNC and UNF do not mate.
Heat treatment / conditionSolution treated + aged (treatment B)
Reference specimen: Hot-finished bar · Ø12.7 mm (1/2 in)
1800°F / 1 h, air cool; 1350°F / 8 h, furnace cool to 1150°F; total aging 18 h.
Reference condition from material data. The ordered condition is agreed in your quotation.
Mechanical testing ASTM F606/F606M
Mechanical test methods for fasteners; select applicable tensile, yield and hardness tests. This standard supplies methods, not a material grade or pass/fail limits. Define those limits and sampling in the part specification.
Test-method reference ↗Sources & editions Reviewed 2026-10-19
Historical samples support the stated grade coverage. The ordered edition controls the full requirements.
Preview your dimensions
Example dimensions, not a stock size.
Simplified right-hand thread appearance. No tolerance, fit or standard compliance is simulated.
Head dimensions · optional
Head proportions are illustrative: s = 1.5d, k = 0.625d. They are not standard-table values and will not be submitted as specified dimensions.
Quality documents
Heat number traceability
Every delivery traceable by heat number
Mechanical testing
Included with every delivery
Thread inspection
GO / NO-GO gauging · sampled inspection
Methods, sampling and acceptance criteria follow the agreed specification. PMI, third-party inspection and additional records are agreed separately.
Before production and at delivery
During quotation, a redacted certificate from a previous order can show the document format and recorded tests. It is a historical example, not certification of this product or a new order. Shipment documents must correspond to the material and batch actually supplied.
How to read a historical certificate sample ↗Prepare your enquiry
Send a drawing and quantity.
No drawing? Use these details.
- Size
- d × L Diameter × under-head length
- Quantity
- Pieces Required quantity per size
- Thread
- Metric / UNC / UNF Pitch or TPI + thread class
- Coverage
- Full / Partial For partial, include threaded length
Full material checklist
Treatment route
Solution treatment, aging sequence and governing specification.
Avoids assigning properties from a different X-750 treatment.
Load duration
Service temperature, sustained loading and any cycling requirements.
Makes creep or relaxation review relevant to the actual duty.
Lot evidence
Heat-treatment record and required tensile / rupture reports.
A chemistry match alone does not establish the ordered aged condition.
Commercial terms
Indicative terms; confirmed in your quotation.
Sample review
~20days
Freight, import duties and taxes are separate.
Conditions
Samples are typically reviewed on an approximately 20-day basis. BYBOLT may cover agreed sample manufacturing; buyer freight, import duties and taxes remain separate.
Production review
25–35days
Urgent requirements can be discussed.
Conditions
Regular production is commonly reviewed on a 25–35 day basis. Urgent requirements can be discussed against the complete specification.
Typical deposit
30%
T/T or LianLian. Balance before dispatch.
Conditions
Payment can be arranged by T/T or LianLian. A typical order uses a 30% deposit, with the balance completed before dispatch.
Technical help
Is B637 enough to define an X-750 hex bolt?
B637 establishes a material route for N07750. The bolt order also needs final tensile, yield and hardness acceptance after the specified treatment, plus dimensions and thread. No grade-specific finished-bolt route was verified in the sources reviewed here.
Can I use an X-750 spring specification for a hex bolt?
Review it against the actual stock form and bolt duty first. Spring wire and bolt stock can require different processing and acceptance. For elevated-temperature loading, identify any required relaxation or other qualification tests separately.
Read a thread designation Metric / UNC / UNF
M12 × 1.75–6g12 mm diameter · 1.75 mm pitch · external class 6g
1/2-13 UNC-2A1/2 inch · 13 TPI · coarse · external class 2A
1/2-20 UNF-2A1/2 inch · 20 TPI · fine · external class 2A
Examples explain designations, not available sizes. Specify fine pitch explicitly. UNC and UNF do not mate; full or partial threading is a separate choice.
Thread classes and inspection ↗Related material guides
Download the PO and receiving checklist (PDF)
Guides for your enquiry
Specify your Inconel X-750 bolt
Send a drawing or add your dimensions and quantity.
Continue to enquiry ↗
Combine several products in one enquiry
Inconel X-750 hex boltsEnquire ↗