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العربية ISO 7380-2 button head flange screws factory
XZ Fastener manufactures ISO 7380-2 button head flange screws for buyers who need a low-profile rounded head, integrated bearing flange, and reliable hex socket drive for machinery and assembly lines. These metric button head screws with flange are used on covers, guards, brackets, housings, automation equipment, and visible mounting points where load distribution and appearance both matter. Alloy steel, carbon steel, and stainless steel options can be supplied with property class, thread length, surface finish, packing, and inspection documents according to order requirement. Send size lists, drawings, finish targets, and quantity plans for factory quotation review.
Quick Specs
What Buyers Should Know Before Sourcing ISO 7380-2 Button Head Flange Screws
ISO 7380-2 button head flange screws are metric hex socket screws with a rounded low-profile head and an integrated collar or flange under the head. The flange increases bearing area and can reduce the need for a separate washer in selected assemblies, but buyers should still check seating surface, clamp load, tool access, and head clearance before confirming production.
This product is often sourced with other standard fasteners for machinery and equipment projects. Buyers should clearly separate ISO 7380-2 flange screws from ISO 7380-1 button head screws without flange because head geometry and installation behavior are not the same.
Factory Sourcing Notes
- Confirm the exact ISO 7380-2 requirement, size, pitch, length, and flange dimensions.
- State whether the screw needs full thread, partial thread, or drawing-based thread length.
- Define socket depth, socket fit, head appearance, and burr control for visible assemblies.
- Provide packing, carton quantity, label format, and inspection requirements before production.
Common Purchasing Descriptions
Purchasing teams may describe this item as ISO 7380-2 button head flange screws, hex socket button head screws with collar, metric button head flange screws, button head Allen flange screws, or low-profile socket screws with flange. For accurate factory quotation, the inquiry should include size, material, property class, finish, quantity, drawing if available, and packing method.
Project purchasing lists often combine several metric fastener types. Along with ISO 7380-2 flange screws, buyers may also source 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. Related industrial bolts can be quoted together when an assembly requires both socket screws and hex head fasteners.
Detailed Specifications Table
| Предмет | Typical Requirement | Procurement Notes |
|---|---|---|
| Стандарт | ISO 7380-2 | Hexagon socket button head screws with collar or flange; confirm drawing when dimensions are critical. |
| Диапазон диаметров | Common metric sizes such as M3 to M16 | Other sizes can be reviewed according to order requirement and production availability. |
| Thread | Metric coarse thread, selected fine thread options | Thread pitch and thread length should be clearly stated in the inquiry. |
| Head and Flange | Rounded button head with integrated flange | Confirm head diameter, flange diameter, flange thickness, and seating surface requirements. |
| Drive | Internal hex socket | Socket depth, socket concentricity, and tool fit are important for repeated assembly use. |
| Материал | Alloy steel, carbon steel, stainless steel A2/A4 | Material should match strength, corrosion, and cost requirements. |
| Обработка поверхности | Black oxide, zinc plated, nickel plated, plain, passivated stainless | Finish selection should match environment, appearance, and storage conditions. |
| Packing | Small boxes, inner cartons, export cartons, pallet packing | Buyer labels, barcode labels, and mixed-size packing plans are available upon request. |
For modified flange diameter, special head height, non-standard length, or drawing-based parts, XZ Fastener can review custom fasteners according to drawings and order requirement.
Material and Grade Explanation
Alloy Steel and Carbon Steel
Alloy steel and carbon steel ISO 7380-2 button head flange screws are commonly used when mechanical strength, repeat assembly performance, and controlled cost are important. Property classes such as 8.8 and 10.9 can be discussed according to application requirements. Heat treatment, hardness, thread accuracy, and coating should be confirmed before production.
Stainless Steel A2 and A4
Stainless steel A2 and A4 options are suitable for equipment panels, light outdoor use, moisture-exposed assemblies, and applications where clean appearance is important. A4 stainless steel can be considered where stronger corrosion resistance is required. Passivation and clean packing can be supplied according to order requirement.
When buyers compare ISO 7380-2 flange screws with other fastener products, they should evaluate head clearance, bearing area, tool access, assembly torque, and whether a separate washer is still required by the design.
Surface Finish Selection Guide
| Finish | Typical Use | Buyer Consideration |
|---|---|---|
| Black Oxide | Machinery, tools, fixtures, indoor assemblies | Provides dark appearance; oil protection and carton lining should be confirmed for storage. |
| Zinc Plated | General industrial assemblies and distributor stock | Common for carbon steel screws; color tone and corrosion target can be discussed. |
| Nickel Plated | Visible hardware and controlled appearance applications | Useful where a brighter finish is needed; check the installation environment before selection. |
| Phosphate | Industrial components requiring oil retention | Often paired with protective oil; packaging should reduce moisture exposure. |
| Plain Stainless or Passivated | Stainless assemblies and moisture-exposed equipment | Passivation can be requested for improved surface cleanliness and consistency. |
For orders involving multiple finishes or matched assemblies, XZ Fastener can also supply coated fasteners according to project requirement.
Manufacturing and Quality Control
Factory control for ISO 7380-2 button head flange screws should cover wire material, cold heading, flange forming, socket forming, thread rolling, heat treatment when applicable, surface treatment, sorting, and final packing. Important inspection points include head diameter, head height, flange diameter, flange thickness, socket depth, socket fit, thread accuracy, overall length, hardness, and finish appearance.
For visible assemblies, burr control, head marks, coating consistency, and packing protection are especially important. Buyers preparing technical files can refer to the DIN and ISO fastener standards guide when confirming standard references and product descriptions.
Приложения
- Machinery covers, access panels, and protective guards
- Automation equipment, robotics frames, and fixture systems
- Brackets, mounting plates, housings, and equipment frames
- Visible assemblies where a low-profile head and wider bearing area are useful
- Maintenance kits, service parts, and factory assembly programs
The integrated flange can help distribute load across the bearing surface, but the final decision should follow the assembly design. When matching components are needed, XZ Fastener can also quote related flat washers and industrial nuts for complete purchasing lists.
How to Get a Faster Quotation
To receive a faster quotation, send diameter, pitch, length, material, property class, finish, quantity per size, drawing if available, packing method, label format, and required inspection documents. For ISO 7380-2 screws, it is also useful to confirm flange diameter, flange thickness, socket size, head appearance requirement, and whether the screw will be used on a painted or plated surface.
For special dimensions, non-standard flange details, or buyer-specific packing, XZ Fastener’s customized service can review the request according to drawing and order requirement. Buyers can contact XZ Fastener with a size list and quantity plan for factory quotation support.
Часто задаваемые вопросы
What is the difference between ISO 7380-2 and ISO 7380-1 screws?
ISO 7380-2 refers to button head socket screws with a collar or flange, while ISO 7380-1 is commonly used for button head socket screws without the same flange form. Buyers should confirm the required standard and drawing before ordering.
Can ISO 7380-2 button head flange screws be supplied in alloy steel?
Yes. Alloy steel options can be supplied according to property class, finish, size, and order requirement. Heat treatment and hardness requirements should be confirmed before production.
Are stainless steel ISO 7380-2 flange screws available?
Stainless steel A2 and A4 options are available upon request. Buyers should provide corrosion requirements, finish expectations, and packing requirements for quotation review.
Does the flange replace a washer?
The integrated flange increases bearing area and may reduce the need for a separate washer in selected applications. However, the final decision should follow the assembly design, surface material, and load requirement.
What inspection items are important for ISO 7380-2 screws?
Common inspection items include head diameter, head height, flange diameter, flange thickness, socket depth, thread accuracy, overall length, hardness, coating appearance, and packing verification.
Can ISO 7380-2 flange screws be packed with other fasteners?
Yes. ISO 7380-2 screws can be packed with bolts, nuts, washers, and other fasteners according to buyer instructions. Separate labels and item-level packing details help improve receiving control.
Send Your ISO 7380-2 Button Head Flange Screws Inquiry
For a faster quotation, send your size list, finish, quantity, packaging, and inspection requirements. Please include material grade, property class, thread details, flange dimensions, carton quantity, label format, drawings, and any sample reference needed for factory review.
contact XZ Fastener