Materials and grades
Match the requirement to the assembly.
Carbon steel/Alloy steel 8.8 / 10.9 (Bolt HR8.8/HR10.9, MatchedNut HR8/HR10, Washer EN 14399-5/6) These references require written confirmation for the requested dimensions and quantity.
Structural Bolts · MR-035
EN 14399 System HR structural bolt assemblies
EN 14399 HR assembly: EN 14399-3 bolt, EN 14399-7 nut, EN 14399-5/-6 washer (metric)
The structural route is an assembly inquiry. Bolt, nut, washer, installation method and project documentation should be reviewed together.
Reference dimensionsMetric reference: M12-M36, M16, M20, M24, M30；Coarse threadPitch; Inch reference: (Metric); Length reference: 30mm-300mm (Matched)
Material / gradeCarbon steel/Alloy steel · 8.8 / 10.9 (Bolt HR8.8/HR10.9, MatchedNut HR8/HR10, Washer EN 14399-5/6)
Index-ready review · MARKET REFERENCE ONLY
Reference information only. Final supply options are subject to supplier confirmation.
Product overview
A focused starting point for procurement.
Structural bolt pages describe connection-system inquiry directions. Bolt, nut, washer, installation method, project standard and documentation must be reviewed as one system. The structural route is an assembly inquiry. Bolt, nut, washer, installation method and project documentation should be reviewed together. This page is a market-reference starting point for a specification-led inquiry, not a statement of stock, supply capacity or a fixed manufacturing source.
Start with the project standard and assembly system. Do not relabel a general hex bolt as a structural bolt, and do not combine ASTM and EN references without written project approval. Corrosion protection, lubrication and coating affect assembly behaviour and documentation. Confirm the accepted system and test basis rather than selecting by appearance.
HEXVARO is a China-based sourcing and coordination brand. The page does not claim factory ownership, stock, price, MOQ, lead time, certification or a fixed supplier relationship. Final supply options are subject to supplier confirmation.
Applicable standards
State the exact standard and revision.
The standard reference below is an inquiry anchor. It is not a claim that all listed dimensions, grades or finishes are available.
Reference Specifications
Use reference data to make the RFQ specific.
These are common inquiry specifications from the market-reference record. They are not an Available Sizes table and do not create a combined catalogue of materials, grades, dimensions or finishes.
| Reference | Inquiry geometry | Material / grade / finish | Mating components | Status |
|---|---|---|---|---|
| Reference 1 | EN 14399-3 System HR · Metric · M20 × 60mm · Coarse threadM20×2.5 · Partial thread | Alloy steel · 8.8S · Buyer specification required | HRNut (EN 14399-5)+2HRWasher (EN 14399-6) | REFERENCE ONLY |
| Reference 2 | EN 14399-3 System HR · Metric · M24 × 70mm · Coarse threadM24×3 · Partial thread | Alloy steel · 10.9S · Buyer specification required | HRNut (EN 14399-5)+2HRWasher (EN 14399-6) | REFERENCE ONLY |
| Reference 3 | EN 14399-3 System HR · Metric · M30 × 90mm · Coarse threadM30×3.5 · Partial thread | Alloy steel · 10.9S · Hot-dip galvanized | HRHot-dip galvanizedNut+2HRHot-dip galvanizedWasher | REFERENCE ONLY |
Each row is a reference inquiry example. Final supply options are subject to supplier confirmation; the source workbook contains no completed factory confirmation or evidence path for these rows.
| Field | Reference or buyer input | Status |
|---|---|---|
| SKU | MR-035 | REFERENCE ONLY |
| Reference dimensions | Metric reference: M12-M36, M16, M20, M24, M30；Coarse threadPitch; Inch reference: (Metric); Length reference: 30mm-300mm (Matched) | BUYER CONFIRMATION REQUIRED |
| Material options | Carbon steel/Alloy steel | BUYER CONFIRMATION REQUIRED |
| Grade reference | 8.8 / 10.9 (Bolt HR8.8/HR10.9, MatchedNut HR8/HR10, Washer EN 14399-5/6) | BUYER CONFIRMATION REQUIRED |
| Surface finish reference | , Hot-dip galvanized； k grade (K0/K1/K2) CE/UKCA | BUYER CONFIRMATION REQUIRED |
| Supply status | Supplier, stock, price, MOQ and lead time are not established by this page. | UNCONFIRMED |
Final supply options are subject to supplier confirmation.
RFQ Specification Checklist
Send the details that make comparison useful.
The buyer remains responsible for the actual dimensions, material, grade, finish, quantity, destination and document requirement.
- Product: EN 14399 System HR structural bolt assemblies
- SKU: MR-035
- Standard reference: EN 14399 HR assembly: EN 14399-3 bolt, EN 14399-7 nut, EN 14399-5/-6 washer (metric)
- Actual dimensions, material, grade, surface finish, quantity, destination and required documents must be confirmed by the buyer
- Required inspection, traceability, packaging and labelling documents
- Any drawing number, revision, accepted deviation or installation requirement
Technical review
Keep special standards and assemblies separate.
Content is structured for indexing review. Supplier availability remains unconfirmed.
The structural route is an assembly inquiry. Bolt, nut, washer, installation method and project documentation should be reviewed together.
Technical documents, samples, inspection requirements and conformity records are reviewed only for the specific inquiry and selected source.
Technical FAQ
Clarify the requirement before comparing offers.
Does ASTM F3125 equal EN 14399?
No. They are separate standards and assembly systems. The engineer, project documents and accepted conformity route control.
Can a generic torque value be published for a structural assembly?
No. Preload, installation method, calibration and the specified assembly system must be confirmed for the project.
What does this MR-035 page confirm?
It organizes a product-specific inquiry. It does not confirm inventory, supplier relationship, price, MOQ, lead time, certification or delivery.
What should be stated with EN 14399 HR assembly: EN 14399-3 bolt, EN 14399-7 nut, EN 14399-5/-6 washer (metric)?
State the exact revision, dimensions, material or grade, finish, quantity, destination and required documents. The structural route is an assembly inquiry. Bolt, nut, washer, installation method and project documentation should be reviewed together.
Related products
Follow the technical relationship.
Structural Bolts · MR-035 inquiry
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Product name, SKU, standard reference and source URL are carried into the form so you can edit the actual dimensions, material, grade, finish, quantity, destination and document requirements.
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