Typical MOQ
10pieces
Subject to product and material review.
Conditions
MOQ is typically 10 pieces, subject to product, material and manufacturing-route review.
Incoloy 925 Hex Bolts
MaterialIncoloy 925Change · 45 grades
- Material
- Incoloy 925 · UNS N09925
- Material focus
- Age-hardened strength · corrosion resistance
- Common applications
- Oilfield valves · downhole tools
- Main elementsComposition limits · wt.%
- Ni 42–46%
- Cr 19.5–22.5%
- Fe ≥22%
- Mo 2.5–3.5%
- Ti 1.9–2.4%
- Cu 1.5–3.0%
Standards & threads
Finished boltDrawing-defined acceptanceNo grade-specific finished-bolt specification was established in the reviewed sources.
Set final aged strength and hardness, treatment traceability and any sour-service acceptance criteria. A material standard does not establish sour-service compliance.
N09925 is explicitly identified in B805 and the reviewed B637 grade table. Do not label B805 as a forging specification.
Raw material specificationASTM B805UNS N09925
N09925 · bar and wire
B805 is a bar/wire route. B637 is a separate possible bar/forging-stock route; specify which applies and the final solution / aging condition.
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.
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
Aged condition
N09925, final treatment and required strength / hardness acceptance.
Identifies the condition to be evaluated for the joint.
Sour-service basis
Applicable standard and edition, environment and project restrictions.
Avoids inferring sour-service compliance from the alloy name.
Specification evidence
B805 bar / wire or the applicable B637 stock route, edition and final-lot test records.
Keeps catalogue references separate from agreed finished-bolt compliance.
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
Should I cite B805 or B637 for Incoloy 925 bolt stock?
B805 identifies N09925 bar and wire. B637 is another material route to check for the specified bar or forging form. Name the applicable form, edition and final solution/aging condition; B805 should not be described as a forging specification.
Does an Incoloy 925 certificate demonstrate sour-service compliance?
A material certificate establishes only its stated scope. For sour service, include the governing specification, environmental limits, final hardness and required test evidence. Link those requirements to the finished bolt condition and lot.
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 Incoloy 925 bolt
Send a drawing or add your dimensions and quantity.
Continue to enquiry ↗
Combine several products in one enquiry
Incoloy 925 hex boltsEnquire ↗