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العربية ISO 7090 steel washers manufacturer
XZ Fastener supplies ISO 7090 steel washers for machinery, steel structure, equipment assembly, construction hardware, and industrial maintenance programs. ISO 7090 refers to chamfered plain washers in the normal series, commonly selected where a clean bearing surface and reliable load distribution are required under metric hex head bolts or nuts. Carbon steel, hardened steel, stainless steel, and other materials can be supplied according to order requirement, with hardness and finish options available upon request. Buyers often source ISO 7090 washers together with DIN 933 full thread hex bolts, ISO 4032 nuts, and spring lock washers.
Quick Specs
What Buyers Should Know Before Sourcing ISO 7090 Steel Washers
ISO 7090 steel washers are chamfered plain washers designed to provide a controlled bearing surface in metric bolted assemblies. Compared with basic flat washers, the chamfered edge can be important where drawings specify washer orientation, surface contact, or a cleaner fit under bolt heads and nuts.
Before ordering, buyers should confirm inner diameter, outer diameter, thickness, chamfer detail, hardness, material, surface finish, and whether the project allows ISO 7089 or DIN 125 alternatives. For complete assembly planning, the XZ Fastener bolt, nut, and washer size matching guide helps reduce mismatch before purchasing.
Important Sourcing Checks
- Confirm ISO 7090, nominal size, inner diameter, outer diameter, thickness, and chamfer requirement.
- Specify washer hardness such as 140 HV, 200 HV, or 300 HV.
- Match washer size with bolt diameter, hole size, nut face, and bearing surface.
- Check coating thickness when washers are used with galvanized or coated fasteners.
- Confirm carton weight, small box packing, palletizing, and buyer label requirements.
Common Purchasing Descriptions
- ISO 7090 steel washers, chamfered, zinc plated, M6 to M30
- ISO 7090 chamfered plain washers, 200 HV, black oxide finish
- ISO 7090 hardened steel washers for high-strength bolt assemblies
- Metric steel washers for Grade 8.8 carbon steel hex bolts and ISO 4032 nuts
- ISO 7090 washers matched with zinc plated DIN 933 bolts
- Chamfered washers for black oxide DIN 933 bolts and metric hex nuts
- Hot dip galvanized DIN 933 bolts with galvanized steel washers
- ISO 7090 and ISO 7089 washer supply according to drawing requirement
For related washer selection, buyers may also review ISO 7089 flat washers. The final standard should follow the drawing, purchase specification, or assembly approval document.
Detailed Specifications Table
| Предмет | Available Specification | Buyer Notes |
|---|---|---|
| Product Name | ISO 7090 steel washers, chamfered plain washers, metric washers | Used under bolt heads or nuts to distribute load and provide a controlled bearing surface. |
| Диапазон размеров | Common metric sizes such as M5, M6, M8, M10, M12, M16, M20, M24, M30, M36 and larger sizes upon request | Send nominal size or drawing dimensions for each line item. |
| Hardness | 140 HV, 200 HV, 300 HV and special hardness options | Higher hardness may be required with high-strength bolts or controlled preload assemblies. |
| Материал | Carbon steel, hardened steel, stainless steel A2/A4, alloy steel | Material should match strength demand, corrosion condition, and mating fasteners. |
| Finish | Plain, zinc plated, yellow zinc, black oxide, hot dip galvanized, Dacromet-type coating | Finish should be selected with the bolt and nut as a complete assembly. |
| Manufacturing | Stamping, punching, chamfer forming, deburring, heat treatment when required, surface treatment, sorting | Chamfer consistency, burr control, and flatness help reduce assembly problems. |
| Packing | Bulk carton, small box, polybag, woven bag, pallet packing, buyer label | Customized packing can be supplied according to order requirement. |
| Inspection | Dimension, chamfer, hardness, flatness, burr, surface finish, coating thickness, visual inspection | Inspection reports and third-party inspection can be discussed before order confirmation. |
Material and Grade Explanation
Carbon steel ISO 7090 steel washers are commonly used for machinery, brackets, frames, construction hardware, and general equipment assembly. Hardened steel washers may be selected for higher clamp loads or high-strength bolt assemblies. Stainless steel A2 and A4 washers are preferred where corrosion resistance is more important than carbon steel hardness.
Washer hardness should be reviewed when the assembly uses Grade 8.8 carbon steel hex bolts, 10.9 bolts, or 12.9 bolts. For controlled fastening, the washer should support the bolt head or nut face without excessive deformation. ISO 7090 washers are commonly used with metric hex head bolts, ISO 4032 nuts, and DIN 127 spring lock washers in complete fastening sets.
Assembly Matching Notes
- Inside diameter must fit the bolt shank without excessive looseness.
- Outside diameter should support the bearing area and cover the hole properly.
- Chamfer orientation may matter when drawings specify contact direction.
- Washer hardness should be checked for high-strength bolt assemblies.
- Finish should match the bolt and nut finish, especially for outdoor use.
Surface Finish Selection Guide
Zinc Plated
Zinc plated ISO 7090 washers are commonly used with zinc plated DIN 933 bolts for indoor machinery, equipment, brackets, and general industrial fastening. White zinc and yellow zinc can be discussed by order.
Black Oxide
Black oxide washers are often selected with black oxide DIN 933 bolts for fixtures, machinery, and appearance-controlled assemblies. Additional oiling may be required for storage protection.
Hot Dip Galvanized
Hot dip galvanized washers are commonly used with hot dip galvanized DIN 933 bolts for outdoor steel structures. Buyers should confirm coating thickness and dimensional allowance before order.
For coating comparison across bolts, nuts, and washers, review the fastener coating guide and the surface finish selection guide for fastener assemblies.
Manufacturing and Quality Control
ISO 7090 steel washer production requires control of stamping accuracy, inner diameter, outer diameter, thickness, chamfer, flatness, burr condition, surface appearance, hardness, and coating coverage. For hardened steel washers, heat treatment and hardness testing are important before final finishing. For coated washers, chamfer edges and holes should be reviewed for complete coverage and burr condition.
Quality checks can include material verification, dimensional inspection, chamfer inspection, hardness testing, flatness review, coating thickness testing, salt spray testing when requested, and final packing inspection. XZ Fastener shares more details about quality control for bolts, nuts, washers, and screws for buyers preparing inspection requirements.
Приложения
- Machinery frames, equipment bases, brackets, guards, and covers
- Steel structure, construction hardware, anchors, and outdoor assemblies
- Automotive, agricultural equipment, trailers, and maintenance kits
- Electrical cabinets, mounting rails, solar brackets, and general fabrication
- Assemblies using metric hex head bolts, ISO 4032 nuts, and steel washers
- Distributor stock programs covering common metric washer sizes
- High-strength bolt assemblies requiring hardened or chamfered washers
- Custom fastener kits supplied according to project size lists and packing needs
For mixed fastener programs, buyers can review the flat washers guide to compare size, material, and application requirements before preparing a purchase list.
How to Get a Faster Quotation
To receive a faster quotation for ISO 7090 steel washers, send the standard, nominal size, material, hardness, finish, quantity per size, packaging method, delivery destination, and inspection requirement. If the washer must match an existing bolt and nut assembly, include the bolt standard, bolt grade, nut standard, coating, hole size, and washer position in the assembly.
You can send the complete washer list through the request a quote page together with related bolts, nuts, threaded rods, anchors, drawings, labels, and third-party inspection requirements.
Часто задаваемые вопросы
What is ISO 7090 used for?
ISO 7090 steel washers are used under bolt heads or nuts to distribute clamp load, provide a chamfered bearing washer option, protect contact surfaces, and support stable bolted assemblies.
What is the difference between ISO 7090 and ISO 7089?
ISO 7090 is commonly associated with chamfered plain washers, while ISO 7089 is commonly used for standard flat washers in the normal series. The project drawing should decide which washer standard controls the order.
Which hardness should I choose for ISO 7090 steel washers?
Common hardness options include 140 HV, 200 HV, and 300 HV. Higher hardness may be selected for high-strength bolt assemblies, depending on bolt grade, joint design, and tightening method.
Can ISO 7090 washers be supplied in zinc plated, black oxide, and hot dip galvanized finishes?
Yes. ISO 7090 steel washers can be supplied in zinc plated, yellow zinc, black oxide, hot dip galvanized, plain, Dacromet-type coating, and other finishes upon request.
Can ISO 7090 washers be packed together with bolts and nuts?
Yes. ISO 7090 washers can be quoted together with DIN 933 bolts, ISO 4017 bolts, ISO 4032 nuts, DIN 127 spring washers, and other fasteners. Please provide the size ratio and packing method for each set.
What information is needed for an ISO 7090 washer quotation?
Please provide standard, nominal size, material, hardness, finish, quantity, packaging method, destination, and inspection requirements. For controlled chamfer or custom washers, send a drawing with inner diameter, outer diameter, thickness, chamfer, and tolerance.
Send Your ISO 7090 Steel Washer Inquiry
For a faster and more accurate offer, send your size list, finish, quantity, packaging method, and inspection requirements. XZ Fastener can quote ISO 7090 steel washers together with matching bolts, nuts, spring washers, threaded rods, and related fastener products according to your purchasing plan.
Send Size List and Requirements