carbon steel washers manufacturer
XZ Fastener manufactures carbon steel washers for buyers who need reliable load distribution, stable dimensions, and finish consistency in bolted assemblies. Flat washers, hardened washers, spring lock washers, and custom washer styles can be supplied according to DIN, ISO, ASTM, ANSI, or drawing-based requirements. Materials can include low carbon steel, medium carbon steel, and heat-treated carbon steel depending on hardness, load, and application. Zinc plated, black oxide, hot dip galvanized, plain, and zinc flake finishes are available upon request. Orders can be reviewed with matching bolts, nuts, packaging, and inspection requirements.
Carbon steel washers can be supplied for metric and inch bolted assemblies, including construction, machinery, steel fabrication, and maintenance projects.
Quick Specs
What Buyers Should Know Before Sourcing Carbon Steel Washers
Carbon steel washers are often treated as simple accessories, but they affect bearing surface, load distribution, coating compatibility, and final assembly appearance. Buyers should confirm whether the order requires flat washers, hardened washers, spring lock washers, large OD washers, or washers made according to drawings.
For common metric flat washer orders, DIN 125 flat washers and ISO 7089 flat washers are widely used references. For heavier bearing surfaces, ISO 7090 or ASTM F436 may be more suitable depending on the bolt grade and application.
Key purchasing checks
- Confirm washer type, standard, inner diameter, outer diameter, and thickness.
- Match washer size with bolt diameter and nut bearing surface.
- Specify hardness or grade when used with high-strength bolts.
- Choose a finish compatible with bolts, nuts, and the service environment.
- State inspection documents, packaging, and label requirements before quotation.
Common Purchasing Descriptions
Washer purchasing descriptions
- Carbon steel flat washers, DIN 125, zinc plated
- ISO 7089 carbon steel washers, plain or oiled finish
- ISO 7090 steel washers, thicker series, black oxide finish
- ASTM F436 hardened washers for high-strength bolt assemblies
- DIN 127 spring lock washers, carbon steel, zinc plated or black finish
Assembly-related descriptions
- DIN 933 full thread hex bolts with carbon steel flat washers
- Grade 8.8 carbon steel hex bolts with hardened washers and Class 8 nuts
- Metric hex head bolts supplied with matching washers and hex nuts
- Zinc plated DIN 933 bolts packed with zinc plated carbon steel washers
- Black oxide DIN 933 bolts or hot dip galvanized DIN 933 bolts matched with compatible washer finishes
When washers are ordered as part of a complete bolting set, XZ Fastener’s washer size matching guide can help confirm bolt, nut, and washer compatibility before production.
Detailed Specifications Table
| Specification Item | Common Options | Buyer Notes |
|---|---|---|
| Product type | Flat washer, hardened washer, spring lock washer, large OD washer, custom washer | Different washer types solve different assembly problems; confirm the function before ordering. |
| Стандарты | DIN 125, DIN 127, ISO 7089, ISO 7090, ASTM F436, ANSI, customer drawing | The standard controls dimensions and shape; hardness or material may need to be specified separately. |
| Size range | Common metric sizes M3 to M64; inch sizes available upon request | Provide inner diameter, outer diameter, and thickness if the washer is non-standard. |
| Материал | Low carbon steel, medium carbon steel, heat-treated carbon steel | Material should be selected according to load, hardness, finish, and assembly requirement. |
| Hardness | Soft steel, HV classes, hardened washer grades, ASTM F436 requirements | High-strength bolts may require hardened washers to prevent embedding and surface damage. |
| Finish | Plain, oiled, zinc plated, yellow zinc, black oxide, hot dip galvanized, zinc flake, phosphate | Finish should match bolts and nuts, especially in outdoor or corrosion-sensitive assemblies. |
| Edge condition | Stamped edge, deburred edge, chamfered edge where required | Deburring or controlled edge condition may be required for appearance or assembly safety. |
| Inspection | ID, OD, thickness, hardness, finish, coating thickness, surface condition | Inspection scope should be confirmed before quotation for accurate cost and lead time. |
| Packaging | Bulk cartons, small boxes, bags, sets with bolts and nuts, pallets, custom labels | Washer quantities are high, so carton weight and label format should be confirmed early. |
| Matching components | Hex bolts, hex nuts, flange bolts, structural bolts, anchors, threaded rods | Full assembly information helps avoid wrong washer ID, OD, hardness, or finish selection. |
For general washer selection, buyers can also review XZ Fastener’s flat washer guide before finalizing the purchase description.
Material and Grade Explanation
Low carbon steel washers are commonly used for standard load distribution and general assembly. Medium carbon steel or heat-treated carbon steel washers are selected when higher hardness is required, especially when used with high-strength bolts. The washer should be softer or harder according to the design requirement, not selected only by diameter.
For high-strength structural or heavy-duty bolting, hardened washers may be required to resist embedding under preload. Buyers working with structural bolts can compare ASTM F436 hardened washers when the assembly calls for defined hardness, thickness, and bearing performance.
Selection reminders
- Soft flat washers are suitable for many general assemblies.
- Hardened washers should be considered for high-strength bolting.
- Spring lock washers are used for specific anti-loosening support, not all assemblies.
- Large OD washers help spread load over softer or slotted surfaces.
- Custom washers should be ordered with drawings showing ID, OD, thickness, tolerance, and material.
Surface Finish Selection Guide
Plain or oiled
Suitable for indoor storage, temporary protection, or assemblies where surface treatment is applied after installation.
Zinc plated
Common for machinery, equipment, and general hardware. It provides a clean appearance and light corrosion protection.
Чернение
Often selected for machinery appearance and light protection with oil. It is not intended for heavy outdoor corrosion exposure.
Hot dip galvanized
Used for outdoor bolting packages. Thickness, surface appearance, and fit with matching galvanized bolts should be reviewed.
Zinc flake
Available upon request for corrosion resistance where a controlled coating system is needed for the complete assembly.
Phosphate
Can be selected for certain machinery or oiled assemblies according to drawing or purchase requirement.
For finish comparison across bolts, nuts, and washers, review XZ Fastener’s fastener coating guide before confirming the final surface treatment.
Manufacturing and Quality Control
Carbon steel washer production can include material selection, coil or sheet preparation, stamping or blanking, piercing, deburring, heat treatment where required, surface finishing, sorting, and packing. For custom washers, tooling and tolerance review should be completed before production.
Quality control can include inner diameter, outer diameter, thickness, flatness, burr level, hardness, coating thickness, visual surface condition, and packaging verification. For complete bolting sets, XZ Fastener can also review washer compatibility with bolts and nuts according to the buyer’s assembly requirement.
Приложения
- Industrial machinery and equipment assembly
- Steel structure bolting and construction fastening
- Pipe supports, brackets, frames, skids, and platforms
- Anchor bolt assemblies and base plate installation
- Maintenance, repair, and export fastener kits
Carbon steel washers are used to distribute load, protect bearing surfaces, improve assembly consistency, and support bolt and nut tightening. For construction applications involving bolts, anchors, and washers, XZ Fastener’s construction fastener guide can help buyers organize product requirements before placing an order.
For applications with vibration, coating exposure, or high preload, the washer should be reviewed together with bolt grade, nut grade, thread fit, and tightening method.
How to Get a Faster Quotation
A complete washer inquiry helps XZ Fastener check material, tooling, hardness, finish, inspection, and packaging before quoting. Please provide the standard, size, inner diameter, outer diameter, thickness, material, hardness, finish, quantity, and whether the washers must be packed with bolts and nuts.
Recommended inquiry details
- Standard: DIN 125, DIN 127, ISO 7089, ISO 7090, ASTM F436, ANSI, or drawing
- Size: bolt size, ID, OD, thickness, and tolerance if non-standard
- Material and hardness requirement
- Finish: plain, zinc plated, black oxide, hot dip galvanized, zinc flake, phosphate
- Quantity, packing method, label requirement, and destination information
Useful attachments
- Drawing with washer dimensions and tolerance
- Sample photos showing finish, burr, and edge condition
- Assembly list for matching bolts and nuts
- Inspection checklist or test report format
- Carton, pallet, barcode, or private label instructions
When the order information is ready, contact XZ Fastener with your size list and application details.
Часто задаваемые вопросы
What standards can XZ Fastener supply for carbon steel washers?
XZ Fastener can supply carbon steel washers according to DIN 125, DIN 127, ISO 7089, ISO 7090, ASTM F436, ANSI, and customer drawings. The final order should also confirm material, hardness, finish, inspection, and packaging requirements.
How do I choose between DIN 125 and ISO 7089 washers?
Both are common flat washer standards, but dimensions and project preferences may differ. Buyers should follow the drawing or purchase specification and confirm inner diameter, outer diameter, thickness, and finish before production.
When should hardened carbon steel washers be used?
Hardened washers are commonly used with high-strength bolts or assemblies where bearing surface deformation must be controlled. If the bolt is high strength, confirm washer hardness and applicable standard before ordering.
Can carbon steel washers be supplied with zinc plating?
Yes. Zinc plated carbon steel washers can be supplied according to order requirement. Buyers should confirm white zinc or yellow zinc, coating thickness, salt spray requirement, and whether matching bolts and nuts need the same finish.
Are hot dip galvanized washers suitable for outdoor assemblies?
Hot dip galvanized washers are commonly selected for outdoor steel structures and exposed bolting packages. Buyers should review coating thickness, surface appearance, and compatibility with galvanized bolts and nuts before production.
Can washers be packed together with bolts and nuts?
Yes. XZ Fastener can pack washers together with matching bolts and nuts according to order requirement. Send the full size list, finish, quantity, packaging method, and inspection requirements so the complete set can be checked.
Send Your Carbon Steel Washer Inquiry
For a faster quotation, send your size list, finish, quantity, packaging, and inspection requirements. Please also include the washer standard, ID, OD, thickness, material, hardness, matching bolt or nut details, drawing files, and any test document requirements so XZ Fastener can review the complete order accurately.
Request a quote