Typical MOQ
10pieces
Subject to product and material review.
Conditions
MOQ is typically 10 pieces, subject to product, material and manufacturing-route review.
17-4 PH Hex Bolts — ASTM F593
Material17-4 PHChange · 45 grades
- Material
- 17-4 PH · UNS S17400 · Type 630
- Material focus
- Strength & toughness set by aging condition
- Common applications
- Shafts · valve assemblies · structural components
- Main elementsComposition limits · wt.%
- Cr 15–17.5%
- Ni 3–5%
- Cu 3–5%
- Nb 0.15–0.45%
Standards & threads
Finished boltASTM F593Alloy Group 7 · Type 630 / S17400 · AH · inch series
The finished part must satisfy the specified F593 AH processing and properties; do not infer them from any A564 aging condition. Scope: nominal 1/4–1-1/2 in.; this is not a metric specification. Identify the exact alloy, condition and edition.
H900 and F593 AH are not interchangeable callouts. A1082/A1082M also lists S17400 for special-purpose bolting; select that separate route only with its grade/condition and A962 requirements.
Raw material specificationASTM A564/A564M Type 630UNS S17400
S17400 · bar, wire and shapes
State the final aging condition, e.g. H900 or H1150, and required condition-specific properties.
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 / conditionH900
Solution treated, then aged at 482°C (900°F).
Reference condition from material data. The ordered condition is agreed in your quotation.
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
Aging designation
S17400 and the exact H condition required by the specification.
Prevents different aging conditions being quoted as the same product.
Design trade-off
Strength, toughness, environment and project hardness restrictions.
Supports selection of the required condition rather than maximum hardness alone.
Treatment evidence
Final aging record, mechanical reports and specified hardness results.
Verifies the condition of the supplied lot, not only the stock chemistry.
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
Does H900 stock satisfy F593 AH bolt requirements?
H900 and F593 AH are different callouts. F593 Group 7 identifies Type 630 with its specified AH processing and finished properties. Select the required final condition instead of assuming any aged A564 stock condition satisfies that route.
Which alternative bolting route should I review for 17-4 PH?
A1082/A1082M also lists S17400 for special-purpose bolting with A962/A962M requirements. Choose the governing route, exact condition and unit system. Keep H900, H1150 or other drawing requirements explicit throughout quotation and inspection.
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 17-4 PH bolt
Send a drawing or add your dimensions and quantity.
Continue to enquiry ↗
Combine several products in one enquiry
17-4 PH hex boltsEnquire ↗