Usine de vis à douille en acier inoxydable A4-80
XZ Fastener manufactures A4-80 stainless steel socket screws for buyers who need higher-strength stainless fasteners with clean internal hex drive control. These screws are commonly specified as DIN 912 / ISO 4762 socket head cap screws, Allen head screws, or drawing-based socket fasteners according to order requirement. A4-80 is often selected for marine equipment, chemical machinery, outdoor assemblies, and stainless structures where A4 corrosion resistance and higher strength are both important. Buyers can source vis à tête creuse en acier inoxydable with finish, packing, and inspection details confirmed before production.
Norme
DIN 912 / ISO 4762; custom drawings available
Force
A4-80 ; A4-70 et A2-70 disponibles sur demande
Matériel
A4 / 316-family austenitic stainless steel
Terminer
Plaine, passivée, décapée et passivée, lubrifiée
Demande
Machines marines, équipements chimiques, assemblages de précision
Ce que les acheteurs doivent savoir avant de se procurer des vis à douille en acier inoxydable A4-80
A4-80 socket screws combine stainless corrosion resistance with a higher property class than A4-70. Before sourcing, buyers should confirm whether the order requires DIN 912 / ISO 4762 socket head cap screws, low head socket screws, button head socket screws, countersunk socket screws, or a drawing-based design.
Confirm head style and drive
Socket screws are not the same as external hex bolts. Internal hex drive depth, socket size, head diameter, head height, and thread length should match the assembly tool and clearance space. Related boulons à tête creuse à six pans creux métriques can be reviewed when the buyer needs standard DIN 912 items.
Check A4-80 availability by size
A4-80 can be more demanding than A4-70, especially in larger diameters or special lengths. Size, thread pitch, mechanical requirement, and inspection documents should be confirmed before the factory commits production.
Plan against thread galling
High-strength stainless socket screws can gall during fast assembly or dry tightening. Lubrication, anti-seize compound, mating nut material, and tightening method should be reviewed for repeated assembly or high clamp load applications.
Descriptions d'achat courantes
Clear purchasing descriptions help avoid wrong head type, wrong property class, or mixed stainless grades. Common buyer wording includes:
- A4-80 stainless steel socket screws DIN 912, M8 x 30, full thread, passivated finish.
- ISO Vis à tête creuse en acier inoxydable A4-80 4762, filetage métrique grossier, finition lisse.
- Vis à tête Allen en acier inoxydable 316, A4-80, avec certificat d'essai de matériaux disponible sur demande.
- Vis à douille A4-80 avec rondelles plates en acier inoxydable assorties et rondelles de blocage à ressort.
- Special socket screws according to drawing, A4 stainless steel, higher-strength property class, controlled head dimensions.
- Separate carbon steel items such as Grade 8.8 carbon steel hex bolts, DIN 933 full thread hex bolts, zinc plated DIN 933 bolts, black oxide DIN 933 bolts, and hot dip galvanized DIN 933 bolts when the order includes both socket screws and external hex fasteners.
If the inquiry includes socket screws and metric hex head bolts together, list each product family separately with its own standard, material, grade, finish, and packing requirement.
Tableau des spécifications détaillées
| Article | Spécification | Notes de l'acheteur |
|---|---|---|
| Nom du produit | Vis à douille en acier inoxydable A4-80 | Also described as A4-80 socket head cap screws or Allen head screws. |
| Normes communes | DIN 912, ISO 4762, vis à douille basées sur un dessin | State the exact standard because head dimensions may differ. |
| Plage de diamètre | Tailles métriques courantes telles que M3-M24 ; autres tailles revues sur commande | A4-80 availability should be checked by diameter and length. |
| Longueur | Longueurs standards ou longueurs sur mesure selon plans | Spécifiez le filetage complet, le filetage partiel ou la longueur exacte du filetage. |
| Sujet | Filetage métrique grossier ; emplacement fin disponible sur demande | Fine pitch must be clearly marked on drawings and packing lists. |
| Matériel | A4 / 316-family austenitic stainless steel | La composition chimique finale suit la norme sélectionnée et le bon de commande. |
| Classe de propriété | A4-80 sous référence ISO 3506 | A4-70 may be more economical where A4-80 is not required. |
| Terminer | Plaine, passivée, décapée et passivée, lubrifiée | La finition doit correspondre à l’exposition à la corrosion et à la méthode d’assemblage. |
| Contrôle | Dimensions, socket gauge, thread gauge, visual appearance, material documents, mechanical reports upon request | Socket depth and drive quality are important control points. |
| Emballage | Cartons en vrac, petites boîtes, sacs, emballage de palettes, étiquettes, codes-barres, emballage privé | Can be supplied according to order requirement. |
Explication du matériau et de la qualité
A4 stainless steel is a molybdenum-bearing austenitic stainless group often selected for chloride exposure, marine air, chemical environments, and outdoor equipment. A4-80 identifies a higher-strength stainless property class than A4-70, commonly associated with a minimum tensile strength level of 800 MPa under ISO 3506 reference conditions.
For buyers choosing between A2, A4-70, and A4-80, the decision should consider corrosion exposure, required clamp load, thread galling risk, mating parts, and assembly method. XZ Fastener provides additional background in its guide to qualités de boulons en acier inoxydable A2-70, A4-70 et A4-80.
A4-80 stainless socket screws should not be treated as a universal replacement for alloy steel socket head cap screws. Alloy steel may offer higher strength, while A4-80 provides stainless corrosion resistance for suitable environments.
Inspection can include head dimensions, socket drive quality, thread fit, surface condition, material documents, and packing checks.
Guide de sélection de finition de surface
A4-80 stainless steel socket screws are commonly supplied in plain stainless or passivated finish. Passivation helps remove free iron contamination and supports the natural stainless protective layer. For demanding appearance or corrosion environments, pickling and passivation may be discussed. Lubrication can be important for socket screws because stainless threads may gall under high tightening pressure.
| Terminer | Utilisation typique | Note de l'acheteur |
|---|---|---|
| Inox uni | General machinery, indoor assemblies, standard stainless socket screw stock | Finition commune lorsqu'aucun traitement de surface supplémentaire n'est spécifié. |
| Passivé | Air marin, équipements extérieurs, machines chimiques, assemblages en acier inoxydable propres | Often requested where corrosion resistance and clean surface are important. |
| Décapé et passivé | More demanding surface cleaning requirements | Confirm appearance expectation and acceptance criteria in advance. |
| Lubrifié | Charge de serrage plus élevée, assemblages répétés, applications sensibles au grippage | Le comportement du couple change lorsqu'une lubrification est utilisée. |
| Revêtements en acier au carbone | Boulons DIN 933 zingués, boulons 933 oxyde noir, boulons DIN 933 galvanisés à chaud | Ces descriptions s'appliquent normalement aux boulons hexagonaux en acier au carbone, et non aux vis à douille en acier inoxydable A4 standard. |
For broader coating and finish comparisons, review the XZ Fastener guide de finition des fixations.
Fabrication et contrôle qualité
Factory production begins with review of the standard, diameter, length, thread pitch, material grade, property class, finish, drive dimensions, packing method, and inspection requirement. Depending on size and order details, A4-80 stainless socket screws can be produced by cold heading, thread rolling, machining, or combined processes.
Avant la production
XZ Fastener checks the purchase description, drawing, material requirement, head type, socket drive, thread length, finish, and inspection documents. Buyers can browse broader produits de fixation when the order also includes nuts, washers, threaded rods, anchors, or hex bolts.
Pendant la production
Common control points include head diameter, head height, socket depth, socket gauge fit, thread gauge fit, surface appearance, burr control, and material separation between A2 and A4 stainless grades.
Custom socket screws
For modified heads, special lengths, non-standard thread, shoulder designs, or special packing, XZ Fastener can review attaches personnalisées from drawings, samples, or application photos.
Applications
A4-80 stainless steel socket screws are used where corrosion resistance, compact head design, internal drive assembly, and higher stainless strength are required.
- Équipements marins et machines côtières
- Équipement de traitement chimique
- Stainless steel machine frames
- Ensembles de pompe, de vanne et d'instrument
- Supports pour équipements alimentaires et boissons
- Automatisation extérieure et coffrets électriques
- Assemblages mécaniques de précision
- Pièces de rechange de maintenance pour environnements corrosifs
For high-vibration or safety-critical joints, the mating thread, tightening method, lubrication, and proof documentation should be reviewed before bulk production.
Comment obtenir un devis plus rapide
A clear inquiry helps XZ Fastener quote A4-80 stainless steel socket screws accurately. Please provide:
- Liste des tailles, telles que M5 x 16, M6 x 20, M8 x 30, M10 x 40.
- Standard ou dessin, tel que DIN 912, ISO 4762, tête basse, tête boutonnée, tête fraisée ou conception personnalisée.
- Matériau et qualité, tels que l'acier inoxydable A4-80, A4-70, A2-70 ou 316.
- Exigences de filetage, y compris le filetage grossier, le pas fin, le filetage complet ou la longueur exacte du filetage.
- Exigence de finition, telle que nature, passivée, décapée et passivée, ou lubrifiée.
- 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.
- Exigences d'inspection, telles que le certificat de matériau, le rapport dimensionnel, la vérification de la jauge à douille ou l'inspection par un tiers.
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 an A4-80 stainless steel socket screw?
It is a stainless steel socket screw made from the A4 stainless group with an 80 property class under ISO 3506 reference. Buyers usually specify it when they need A4 corrosion resistance and higher stainless strength than A4-70.
Is DIN 912 the same as ISO 4762?
DIN 912 and ISO 4762 both refer to socket head cap screw standards, but buyers should state the exact standard required because dimensional details and acceptance expectations may differ.
Les vis à douille A4-80 peuvent-elles remplacer les vis à tête creuse en acier allié ?
Not automatically. Alloy steel socket screws may provide higher strength, while A4-80 stainless socket screws provide corrosion resistance. The load, environment, and assembly method should be checked before substitution.
Can XZ Fastener supply matching washers or nuts?
Oui. Des rondelles plates en acier inoxydable, des rondelles élastiques, des écrous hexagonaux et des garnitures assemblées peuvent être fournis selon la norme de vis, le filetage, le matériau et les exigences de la commande.
How can buyers reduce galling risk with A4-80 stainless socket screws?
Buyers can consider lubrication, anti-seize compound, controlled tightening speed, clean mating threads, and correct mating material. The assembly method should be reviewed when high clamp load is required.
What documents can be requested with the shipment?
Les certificats d'essai de matériaux, les rapports d'inspection dimensionnelle, les contrôles de jauge à douille, les enregistrements d'inspection de filetage, les listes de colisage et d'autres documents peuvent être discutés en fonction des exigences de la commande.
Can custom A4-80 socket screws be produced from drawings?
La hauteur de tête personnalisée, les dimensions d'épaulement, le pas de filetage spécial, la longueur spéciale, le marquage et l'emballage peuvent être examinés à partir de dessins, d'échantillons, de photos, de quantité et de détails d'application.
Envoyez votre demande de renseignements sur les vis à douille en acier inoxydable A4-80
Send your size list, finish, quantity, packaging method, and inspection requirements. Include the standard or drawing number, head type, thread pitch, thread length, destination, and whether washers or nuts are needed. XZ Fastener will review the details and prepare a quotation according to your order requirement.
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