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العربية DIN 7380 button head socket screws factory
XZ Fastener supplies DIN 7380 button head socket screws for machinery, equipment panels, metal fabrication, electrical enclosures, furniture hardware, and low-profile assembly positions. These metric socket screws are selected when buyers need a rounded head, clean appearance, hex socket drive, and reliable thread engagement in limited-access areas. Standard and drawing-controlled requirements can be discussed before production, including size range, material, property class, surface finish, packing method, and inspection documents. Buyers may also compare related industrial screws and broader fastener products when building a complete sourcing list.
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Quick Specs
| Standard | DIN 7380, DIN 7380-1, or ISO 7380-1 reference according to buyer requirement. Drawing confirmation is recommended when interchangeability is critical. |
|---|---|
| Strength | Common carbon steel property class 10.9; stainless steel A2-70 or A4-70 available upon request. Lower or special grades should be confirmed by application. |
| Material | Carbon steel, alloy steel, stainless steel 304/A2, stainless steel 316/A4, or specified material according to order requirement. |
| Finish | Plain, black oxide, zinc plated, nickel plated, zinc flake, passivated stainless steel, or other approved coating. |
| Application | Machinery guards, control cabinets, equipment covers, brackets, assembly fixtures, metal panels, furniture hardware, and low-profile metric fastening positions. |
What Buyers Should Know Before Sourcing DIN 7380 Button Head Socket Screws
DIN 7380 button head socket screws are chosen for their low rounded head and internal hex drive. They are useful when the assembly needs a cleaner surface than a standard socket head cap screw, or when a protruding hex head is not suitable.
The key sourcing point is that button head screws are not selected by size alone. The buyer should confirm the exact standard version, thread pitch, head diameter, socket size, property class, coating, and mating thread condition. For standard comparison, XZ Fastener’s guide to DIN and ISO fastener standards can help buyers understand why product standards and strength requirements must be stated separately.
Common Purchasing Descriptions
A clear purchasing description reduces quotation errors and prevents wrong-spec production. Buyers should include the standard, size, material, strength class, finish, quantity, and packing requirement.
| Incomplete Description | Better Purchasing Description |
|---|---|
| M6 button head screw | DIN 7380 button head socket screw, M6 x 20, Class 10.9, black oxide, full thread, 20,000 pcs |
| Stainless socket screw | ISO 7380-1 button head socket screw, M5 x 16, A2-70 stainless steel, passivated, carton packing |
| Zinc screw for panel | DIN 7380, M8 x 25, carbon steel Class 10.9, zinc plated, hex socket drive, with inspection report |
| Special head screw | Button head socket screw made to drawing, specified material, coating, tolerance, and sample approval before production |
Some distributors source button head socket screws together with standard bolt lines. If the same order also includes 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, or hot dip galvanized DIN 933 bolts, list them as separate line items. Mixing screw and bolt descriptions in one line often causes quotation and packing errors.
Detailed Specifications Table
| Specification Item | Typical Requirement | Buyer Checkpoint |
|---|---|---|
| Product type | Button head socket screw | Confirm DIN 7380, DIN 7380-1, ISO 7380-1, or drawing-based requirement. |
| Thread system | Metric coarse thread is common | State fine pitch if required. Do not assume standard pitch on machinery replacement parts. |
| Common size range | M3 to M16 is commonly requested | Special sizes can be discussed according to drawing and quantity. |
| Head form | Low rounded button head with socket drive | Check head diameter and height when clearance is limited. |
| Drive | Hex socket | Socket depth and tool engagement should be checked for repeated assembly. |
| Thread length | Usually full thread for many standard lengths | Confirm if partial thread or special shank length is required. |
| Documents | Inspection report, material certificate, coating report available upon request | Define certificate requirements before production, especially for project or OEM use. |
| Packing | Bulk carton, small box, bag, or customer label | Confirm pieces per box, carton weight, barcode, and pallet requirements. |
Material and Grade Explanation
Carbon Steel and Alloy Steel
Carbon steel and alloy steel DIN 7380 button head socket screws are commonly used in machinery, fixtures, brackets, and equipment assemblies. Class 10.9 is a frequent request for standard steel socket screws, but buyers should confirm whether the application can accept button head geometry and the required tightening method.
For higher-load assemblies, buyers may compare related high-strength fasteners and confirm whether a button head screw, socket head cap screw, or hex bolt is the correct design choice.
Stainless Steel
Stainless steel DIN 7380 screws are selected when corrosion resistance or clean appearance is required. A2 stainless steel is common for general indoor and light outdoor use. A4 stainless steel is preferred for marine, coastal, chemical, or high-humidity environments.
Stainless steel threads can gall under high friction. Buyers should consider installation speed, lubrication, and mating material before approving stainless assemblies.
Surface Finish Selection Guide
Surface finish affects appearance, corrosion resistance, thread fit, and installation behavior. It should be selected according to the service environment, not only by price.
| Finish | Typical Use | Buyer Note |
|---|---|---|
| Black oxide | Indoor machinery, tooling, and equipment assemblies | Good appearance and low coating thickness; limited corrosion protection. |
| Zinc plated | General industrial and light-duty corrosion protection | Confirm hydrogen embrittlement control for high-strength steel screws where applicable. |
| Zinc flake | Higher corrosion resistance with controlled coating thickness | Useful when thread fit and corrosion resistance must be balanced. |
| Nickel plated | Appearance-focused assemblies and selected equipment parts | Check application environment and contact material. |
| Stainless passivation | Stainless steel screws for clean or corrosive environments | Specify A2 or A4 material together with surface requirement. |
For outdoor or corrosion-sensitive projects, review XZ Fastener’s coated fasteners and coating guidance before finalizing the order.
Manufacturing and Quality Control
DIN 7380 button head socket screws are typically produced through controlled forming, thread rolling or thread machining depending on size and order requirement, heat treatment for applicable carbon or alloy steel grades, surface finishing, and final inspection.
Material grade, wire or bar diameter, heat number, and supplier documents should be confirmed before production.
Head shape, socket drive, thread pitch, thread length, and overall length are checked against the standard or approved drawing.
Dimensional checks, hardness checks, thread gauge inspection, coating appearance, and packing verification can be arranged according to order requirements.
For non-standard head dimensions, special materials, or project-specific fasteners, XZ Fastener can discuss custom fasteners based on drawings, samples, or technical descriptions.
Applications
DIN 7380 button head socket screws are used where a low-profile rounded head and internal drive are beneficial. They are not a universal replacement for hex bolts or socket head cap screws, but they work well in many compact assemblies.
| Application Area | Why DIN 7380 Is Used | Selection Reminder |
|---|---|---|
| Machinery covers and guards | Low protrusion and clean outer surface | Confirm vibration control and tightening method. |
| Electrical cabinets and panels | Neat appearance and socket drive access | Choose finish according to indoor or outdoor exposure. |
| Furniture and fixture hardware | Rounded head reduces sharp edges | Check head appearance and surface finish consistency. |
| Metal brackets and frames | Good for limited wrench clearance | Confirm load condition before using in high-stress joints. |
| OEM assembly lines | Repeatable socket drive installation | Specify packing, label, and batch traceability. |
If your assembly requires modified head height, special thread length, or a non-standard material, the customized service process is the correct route before production approval.
How to Get a Faster Quotation
A complete request helps the factory quote faster and reduces follow-up questions. For DIN 7380 button head socket screws, buyers should prepare the technical information before sending an inquiry.
- Confirm the standard: DIN 7380, ISO 7380-1, or drawing requirement.
- List size clearly: diameter, length, thread pitch, and quantity.
- State material and grade: carbon steel Class 10.9, A2 stainless, A4 stainless, or other requirement.
- Define finish: black oxide, zinc plated, zinc flake, passivated stainless, or special coating.
- Confirm packing: bulk carton, small box, bagged sets, OEM label, or palletized export packing.
- State inspection documents: dimensional report, material certificate, coating report, or other project documents.
For urgent inquiries, buyers can contact XZ Fastener with a size list, drawing, or sample photos.
FAQ
What is the difference between DIN 7380 and ISO 7380-1?
DIN 7380 is commonly used in trade for button head socket screws, while ISO 7380-1 is the international reference for hexagon socket button head screws. They are closely related in many purchasing situations, but buyers should confirm the exact accepted standard when drawings, inspection, or replacement fit are important.
Can DIN 7380 button head socket screws be supplied in stainless steel?
Yes. Stainless steel options such as A2 and A4 can be supplied upon request. A2 is common for general corrosion resistance, while A4 is more suitable for coastal, marine, chemical, or high-humidity environments.
Are DIN 7380 screws suitable for high-strength joints?
They can be supplied in high-strength carbon or alloy steel grades, but the joint design must be checked. Button head geometry has different head and socket characteristics compared with socket head cap screws or hex bolts. For critical joints, confirm the standard, grade, preload requirement, and engineering approval.
Which finish is commonly selected for DIN 7380 screws?
Black oxide is common for indoor machinery. Zinc plating is widely used for general corrosion protection. Zinc flake may be selected when higher corrosion resistance and controlled coating thickness are required. Stainless steel screws are often passivated.
What information is needed for a quotation?
Send the standard, size, thread pitch, material, grade, finish, quantity, packing method, and required inspection documents. A drawing or sample photo is helpful when the part is modified or not fully standard.
Can DIN 7380 screws be packed for OEM production lines?
Yes. Packing can be discussed according to order requirement, including small boxes, bags, carton labels, batch labels, barcode labels, or palletized export packing. Buyers should define pieces per package and label content before production.
Send Your DIN 7380 Button Head Socket Screw Requirements
For an accurate quotation, send your size list, finish requirement, quantity, packaging method, and inspection requirements. If the screw is drawing-controlled, include the latest drawing revision or clear sample photos.
- Size list: diameter, length, thread pitch, and quantity
- Material and grade: carbon steel, alloy steel, A2, A4, or specified material
- Finish: black oxide, zinc plated, zinc flake, stainless passivation, or other requirement
- Packaging: bulk carton, small box, bag, OEM label, or palletized export packing
- Inspection: dimensional report, material certificate, coating report, or project documents