exportateur de boulons à bride en acier au carbone
XZ Fastener exports carbon steel flange bolts for importers, distributors, equipment builders, and project buyers that need hex flange head bolts with controlled dimensions and shipment-ready packing. Flange bolts can be supplied in metric sizes, full thread or partial thread, with serrated or non-serrated flange options according to order requirement. Common finishes include zinc plated, yellow zinc, black oxide, phosphate, and hot dip galvanized coatings. Buyers use carbon steel flange bolts for machinery, automotive brackets, equipment frames, construction hardware, and maintenance stock. XZ Fastener supports related boulons et écrous à bride export inquiries with labels, inspection documents, and packing details confirmed before shipment.
Norme
DIN 6921, ISO 4162, JIS / IFI types, drawing-based parts
Force
Class 4.8, 8.8, 10.9; other grades by order review
Matériel
Carbon steel, medium carbon steel, alloy carbon steel options
Terminer
Zinc plated, black oxide, phosphate, HDG, plain oil
Demande
Machinery, automotive brackets, steel frames, equipment assembly
Ce que les acheteurs doivent savoir avant de se procurer des boulons à bride en acier au carbone
Export sourcing should start with the exact flange bolt type. Carbon steel flange bolts combine a hex head with an integrated flange bearing surface, but different standards and buyer drawings may use different flange diameters, head heights, serration forms, thread lengths, and strength classes.
Confirm standard and flange style
DIN 6921 and ISO 4162 are common references for metric hex flange bolts, while JIS, IFI, and drawing-based parts may differ. For product comparison, review this guide to bolt types including flange bolts.
Check strength and coating together
Class 8.8 carbon steel flange bolts are widely used for machinery and equipment assemblies. Higher classes may require heat treatment control and coating risk review, especially when electroplated finishes are requested.
Préparer les détails de l'emballage d'exportation
Importers should specify carton weight, inner packing, pallet dimensions, shipping marks, barcode labels, and document requirements before production. This helps reduce receiving issues and prevents mixed-size confusion after arrival.
Descriptions d'achat courantes
Clear purchasing descriptions help avoid wrong flange type, incorrect thread length, or unsuitable finish. Typical export wording includes:
- DIN 6921 carbon steel flange bolts, M8 x 25, Class 8.8, zinc plated, serrated flange, export carton packing.
- Hex flange head bolts, carbon steel, M10 x 30, non-serrated flange, black oxide finish.
- Metric carbon steel flange bolts, Class 10.9, phosphate and oil finish for machinery assembly.
- Flange bolts with full thread, yellow zinc plated, bulk carton packing and pallet labels.
- Drawing-based carbon steel flange bolts with specified flange diameter, head height, serration form, and thread length.
- Separate carbon steel bolt lines such as DIN 933 full thread hex bolts, Grade 8.8 carbon steel hex bolts, metric hex head bolts, zinc plated DIN 933 bolts, black oxide DIN 933 bolts, and hot dip galvanized DIN 933 bolts when a shipment includes multiple bolt types.
If the order includes flange bolts, hex nuts, washers, and standard hex bolts, separate every item by standard, size, grade, finish, packing unit, label requirement, and inspection requirement.
Tableau des spécifications détaillées
| Article | Spécification | Exporter les notes d'achat |
|---|---|---|
| Nom du produit | Carbon steel flange bolts | Also called hex flange bolts, flange head bolts, or hex washer flange bolts. |
| Normes communes | DIN 6921, ISO 4162, JIS B 1189, IFI types, drawing-based parts | State the exact standard because flange diameter and head dimensions may differ. |
| Plage de diamètre | Tailles métriques courantes telles que M5-M20 ; autres tailles revues sur commande | Actual range depends on length, grade, flange type, and production method. |
| Longueur | Longueurs standards ou longueurs sur mesure selon plans | Confirm full thread, partial thread, or exact thread length. |
| Type de bride | Serrated flange, non-serrated flange, custom flange diameter | Serrations can improve resistance to loosening but may mark the mating surface. |
| Matériel | Low carbon steel, medium carbon steel, alloy carbon steel options | Material should match grade, forming, heat treatment, and finish requirements. |
| Force | Class 4.8, 8.8, 10.9, 12.9 by order review | For high-strength items, confirm coating, hydrogen embrittlement risk, and inspection documents. |
| Terminer | Plain, zinc plated, yellow zinc, black oxide, phosphate, hot dip galvanized | Finish should match corrosion exposure, thread fit, and assembly method. |
| Contrôle | Head dimensions, flange diameter, serration form, thread gauges, finish appearance, coating thickness | Special inspection reports can be discussed before production. |
| Emballage d'exportation | Cartons en vrac, petites boîtes, sacs, emballage de palettes, étiquettes, codes-barres, emballage privé | L'emballage peut être organisé en fonction de la destination et des exigences de la commande. |
Explication du matériau et de la qualité
Carbon steel flange bolts are selected when buyers need a cost-effective bolt with an integrated bearing surface. Class 4.8 is common for general fastening, while Class 8.8 is widely used for machinery, automotive brackets, and equipment frames. Class 10.9 and higher grades may be reviewed when higher clamp load is required.
Grade selection should consider material, heat treatment, proof load, mating nut grade, tightening method, and coating process. For buyers comparing Class 8.8 flange bolts with Grade 8.8 carbon steel hex bolts, this guide on ce que signifie 8.8 sur un boulon provides useful background.
The flange surface can distribute load over a wider area than a standard hex head. However, it does not automatically replace all washer requirements; the mating material, hole size, slot shape, and surface hardness should still be checked.
Inspection can include head dimensions, flange diameter, serration condition, thread fit, coating thickness, quantity, labels, and packing marks.
Guide de sélection de finition de surface
Finish selection depends on the working environment, target service life, assembly method, and appearance requirement. Carbon steel flange bolts are commonly exported with zinc plating, yellow zinc, black oxide, phosphate and oil, hot dip galvanizing, or plain oil protection.
| Terminer | Utilisation typique à l'exportation | Note de l'acheteur |
|---|---|---|
| Plain / oil | Indoor storage, later finishing, short-term protection | Non recommandé pour une longue exposition extérieure sans protection supplémentaire. |
| Zingué | General machinery, brackets, equipment frames, light outdoor use | Common finish for carbon steel flange bolts and hardware stock. |
| Zinc jaune | Visible hardware, industrial stock, automotive-style assemblies | Confirmez les exigences d’apparence et de corrosion avant de commander. |
| Oxyde noir | Machines d'intérieur, assemblages axés sur l'apparence, protection contre la lumière avec de l'huile | L’oxyde noir n’est pas la même chose qu’une forte protection contre la corrosion extérieure. |
| Phosphate and oil | Automotive, machinery, assemblies needing controlled friction | Friction behavior should be considered when torque values are specified. |
| Galvanisé à chaud | Outdoor steel, construction, utility frames, heavier corrosion exposure | Thicker coating may affect thread fit and flange appearance. |
For coating comparisons, review XZ Fastener’s guide de revêtement des fixations.
Fabrication et contrôle qualité
Export production begins with review of the standard, diameter, length, thread pitch, flange type, serration requirement, carbon steel grade, heat treatment requirement, finish, packing method, destination requirement, and inspection documents. Depending on size and quantity, carbon steel flange bolts can be produced by cold heading, hot forging, thread rolling, machining, or combined processes.
Confirmation de commande
XZ Fastener checks the purchase description, drawing, material requirement, head style, flange diameter, serration form, thread length, finish, labels, and inspection documents. Buyers can browse broader produits de fixation lorsque l'envoi comprend également des écrous, des rondelles, des ancrages, des vis et des boulons hexagonaux.
Contrôle de production
Common control points include head height, across-flat dimension, flange diameter, serration quality, thread gauge fit, heat treatment control, coating appearance, and mixed-size prevention.
Commandes d'exportation personnalisées
For special flange diameter, modified serration, non-standard head height, special thread length, or private packing, XZ Fastener can review attaches personnalisées à partir de dessins, d'échantillons, de photos ou des spécifications d'emballage de l'acheteur.
Applications
Carbon steel flange bolts are used where a built-in bearing surface, fast assembly, and good load distribution are helpful. Serrated flange types are often chosen where loosening resistance is desired, while non-serrated types are preferred when the mating surface should not be marked.
- Châssis de machines et d'équipements
- Automotive brackets and chassis-related assemblies
- Steel structure accessories
- Electrical cabinets and equipment guards
- Construction hardware and support frames
- Agricultural equipment and trailers
- Maintenance replacement bolt programs
- Distributor stock and OEM assembly lines
For high-vibration, high-load, or safety-sensitive assemblies, confirm bolt grade, mating nut grade, tightening method, surface finish, and inspection requirement before bulk shipment.
Comment obtenir un devis plus rapide
A clear export inquiry helps XZ Fastener quote carbon steel flange bolts accurately. Please provide:
- Size list, such as M6 x 16, M8 x 25, M10 x 30, M12 x 40.
- Standard or drawing, such as DIN 6921, ISO 4162, JIS type, IFI type, or custom flange bolt design.
- Material and strength requirement, such as Class 4.8, 8.8, 10.9, or specified carbon steel grade.
- Flange type, including serrated flange, non-serrated flange, or specified flange diameter.
- Exigences de filetage, y compris le filetage grossier, le pas fin, le filetage complet, le filetage partiel ou la longueur exacte du filetage.
- Finish requirement, such as plain, zinc plated, yellow zinc, black oxide, phosphate, or hot dip galvanized.
- Quantité pour chaque taille et délai de livraison prévu.
- Exigence d'emballage, y compris carton en vrac, petite boîte, sac, palette, étiquette, code-barres ou emballage privé.
- Inspection requirements, such as dimensional report, coating thickness, material certificate, mechanical test report, or third-party inspection.
- Port de destination, délai de livraison, marques d'expédition et éventuelles limites de poids des cartons ou des palettes.
Pour une demande structurée, utilisez le demander un devis page ou contacter XZ Fastener avec des dessins, des photos ou une feuille de calcul.
FAQ
What is a carbon steel flange bolt?
It is a bolt with a hex head and an integrated flange under the head. The flange provides a larger bearing surface than a standard hex head and can reduce the need for a separate washer in some assemblies.
What standards are commonly used for metric flange bolts?
DIN 6921 and ISO 4162 are common references for metric hex flange bolts. JIS, IFI, and drawing-based flange bolts may use different dimensions, so the purchase order should state the required standard clearly.
Should export buyers choose serrated or non-serrated flange bolts?
Serrated flange bolts can help resist loosening but may mark the mating surface. Non-serrated flange bolts are preferred where the surface finish or coating should not be damaged by serrations.
Can flange bolts replace standard hex bolts?
Not always. Flange bolts have a built-in bearing surface, while DIN 933 full thread hex bolts and metric hex head bolts may require separate washers. The joint design, hole size, mating material, and tightening method should be checked.
Can XZ Fastener export Class 8.8 carbon steel flange bolts?
Yes, Class 8.8 carbon steel flange bolts can be supplied according to standard, size, finish, quantity, packing, and inspection requirement. Higher grades can be reviewed by order requirement.
Quelle finition convient aux commandes d’exportation en extérieur ?
Hot dip galvanized finish is often selected for heavier outdoor exposure, while zinc plating may be suitable for light outdoor or general hardware use. The expected environment and service life should be confirmed before ordering.
Can custom carbon steel flange bolts be exported from drawings?
Custom flange diameter, serration form, head height, thread length, material grade, finish, marking, and packaging can be reviewed from drawings, samples, photos, quantity, and application details.
Send Your Carbon Steel Flange Bolt Inquiry
Send your size list, finish, quantity, packaging method, and inspection requirements. Include the standard or drawing number, flange type, thread length, material grade, head marking, matching nuts or washers, destination, shipping marks, and any carton or pallet requirements. XZ Fastener will review the details and prepare a quotation according to your order requirement.
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