Typical MOQ
10pieces
Subject to product and material review.
Conditions
MOQ is typically 10 pieces, subject to product, material and manufacturing-route review.
410 Hex Bolts — ASTM F593
Material410Change · 45 grades
- Material
- 410 · UNS S41000 · Stainless steel 410
- Material focus
- Heat-treatable strength · moderate corrosion resistance
- Common applications
- Valves · mechanical fasteners
- Main elementstypical · wt.%
- Cr 12%
- C 0.12%
Standards & threads
Finished boltASTM F593Alloy Group 5 · 410 · H · inch series
Specify hardened-and-tempered acceptance for the finished bolt. Scope: nominal 1/4–1-1/2 in.; this is not a metric specification. Identify the exact alloy, condition and edition.
An annealed A276 bar certificate does not demonstrate the F593 H finished condition.
Raw material specificationASTM A276/A276M / ASTM A479/A479MUNS S41000
S41000 · stainless bar
Select the stock-form specification and required condition. These are bar specifications, not finished-bolt strength classes.
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 / conditionAnnealed
Reference specimen: Hot-rolled quarto plate
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
Final hardness
Specified hardness range, scale and final heat-treatment condition.
Defines measurable acceptance instead of a generic hardened description.
Section and properties
Bolt diameter / section and required strength or toughness.
Connects the treatment requirement to the actual part.
Specification and records
A276/A479 bar; F593 Group 5 H for an inch order within scope, plus final treatment and test records.
Prevents a general stainless reference replacing a finished-bolt specification.
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
What does condition H mean on an F593 410 bolt order?
It identifies the hardened-and-tempered finished condition for the reviewed Group 5 route. Specify the exact grade and applicable properties. An annealed bar certificate supplies different evidence from the required final bolt tests.
When should 410 bolt hardness and threads be inspected?
Define inspection at the required final processing stage and identify the sampling plan. Link hardness and mechanical results to the finished condition, and verify dimensions and thread against the drawing after any processing that can affect them.
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 410 bolt
Send a drawing or add your dimensions and quantity.
Continue to enquiry ↗
Combine several products in one enquiry
410 hex boltsEnquire ↗