stainless steel flange nuts wholesale supplier for DIN 6923 and Bulk Orders
XZ Fastener supplies stainless steel flange nuts for wholesalers, distributors, OEM buyers, and project contractors that need stable bulk sourcing. Orders can be supplied in DIN 6923, ISO-style, ASME inch, serrated, or non-serrated designs according to drawing and application requirement. Buyers can combine stainless flange nuts with bolts, washers, anchors, and related fastener products to build stock lists, reduce purchasing complexity, and keep carton labels, pallet packing, and inspection documents consistent across repeated orders.
Quick Specs
What Buyers Should Know Before Sourcing Stainless Steel Flange Nuts
Flange nuts combine a hex nut body with an integrated bearing face. This structure helps spread clamp load over a wider contact area and can reduce the need for a separate flat washer in many assemblies. For wholesale buyers, the key is not only price per piece, but also standard consistency, size range availability, packaging logic, labeling accuracy, and repeatable delivery for commonly moving stock sizes.
Metric buyers often reference DIN 6923 flange nuts. Serrated flange nuts can improve loosening resistance on suitable mating surfaces, while non-serrated flange nuts are often chosen when the contact face should not mark painted, plated, or softer materials.
Wholesale Sourcing Checks
- Confirm serrated or non-serrated flange face before pricing.
- Group fast-moving sizes separately from project-only or slow-moving sizes.
- State material grade, thread pitch, property class, and finish for every size.
- Confirm carton weight limit, inner packing, barcode, pallet type, and warehouse label format.
- Plan sampling, inspection reports, and re-order rules for long-term stock programs.
For wholesale planning, MOQ is affected by size, material, finish, packaging, and current stock. This guide on MOQ for stainless steel fasteners explains the main cost and production factors buyers should consider.
Common Purchasing Descriptions
Clear purchasing descriptions help the supplier quote the correct product, packaging, and inspection level from the first round. Wholesale buyers commonly send stainless steel flange nut requirements in these formats:
- DIN 6923 A2-70 stainless steel serrated flange nuts, M6-M20, metric coarse thread, plain/passivated, bulk cartons.
- A4-80 stainless steel hex flange nuts, M8, M10, M12, M16, small box packing with buyer label.
- Non-serrated stainless steel flange nuts according to drawing, 304 material, smooth bearing face, palletized shipment.
- 316 stainless steel flange lock nuts for outdoor equipment, mixed sizes for distributor stock.
- Wholesale fastener package with stainless flange nuts, flat washers, spring washers, and metric hex head bolts.
- Stock replenishment list including DIN 933 full thread hex bolts, Grade 8.8 carbon steel hex bolts, zinc plated DIN 933 bolts, black oxide DIN 933 bolts, and hot dip galvanized DIN 933 bolts.
If the stock list includes nuts and matching bolts, XZ Fastener can also discuss flange bolts and nuts so thread fit, finish compatibility, and packing labels are aligned before production.
Detailed Specifications Table
| Specification Item | Typical Options | Purchasing Notes |
|---|---|---|
| Тип продукта | Hex flange nut, serrated flange nut, non-serrated flange nut, flange lock nut | For wholesale stock, keep product names and labels consistent across all cartons and re-orders. |
| Standard Reference | DIN 6923, ISO 4161 style, ASME B18.2.2 inch style, custom drawing | Standard name should be supported by size, pitch, grade, material, and finish details. |
| Диапазон размеров | Common metric sizes M4-M24; larger metric or inch sizes upon request | Fast-moving sizes can be quoted separately from uncommon or special sizes. |
| Thread | Metric coarse, metric fine, UNC, UNF | State pitch clearly, especially for M10, M12, and inch-thread wholesale lists. |
| Материал | 304/A2 stainless steel, 316/A4 stainless steel, 316L, carbon steel alternatives | A4/316 is preferred for chloride, coastal, marine, and chemical environments. |
| Property Class | A2-50, A2-70, A4-70, A4-80; carbon steel class 8 or class 10 alternatives | Confirm whether the grade marking or document requirement applies to every size. |
| Finish | Plain, passivated, bright cleaned, lubricated, waxed, or special finish | Lubrication can help reduce stainless-on-stainless galling during tightening. |
| Inspection | Dimension check, thread Go/No-Go gauge, visual inspection, hardness or tensile test as required | Inspection reports can be supplied according to order requirement. |
| Wholesale Packaging | Bulk carton, inner bag, small box, carton with pallet, buyer label, neutral label | Include carton weight limit, barcode rules, pallet height, and warehouse receiving requirements. |
| Order Planning | One-time bulk order, mixed-size stock order, recurring replenishment, project order | Provide annual forecast or reorder frequency when available to support more stable supply planning. |
Material and Grade Explanation
Нержавеющая сталь A2 / 304 is widely used for general machinery, indoor equipment, electrical cabinets, retail hardware assortments, and many construction applications. It offers practical corrosion resistance and good availability across standard metric wholesale sizes.
Нержавеющая сталь А4 / 316 provides better resistance in chloride, coastal, marine, and chemical environments. It is often selected for outdoor equipment, water treatment systems, marine hardware, and distributor stock intended for higher-corrosion applications.
A2-70, A4-70, and A4-80 indicate stainless fastener strength classes. When the nut is paired with stainless bolts and washers, buyers should check assembly compatibility. This guide to matching stainless steel bolts, nuts, and washers is useful when preparing a complete stock list.
Stock Program Suggestions
- Use A2 stainless for broad general-purpose stock.
- Use A4 stainless for marine, coastal, wet, and chemical-related demand.
- Separate stainless and carbon steel stock codes clearly.
- Keep material and finish labels consistent for warehouse picking.
- Confirm whether customer drawings require non-standard flange dimensions.
Surface Finish Selection Guide
Stainless steel flange nuts are commonly supplied plain or passivated because corrosion resistance mainly comes from the stainless material. For wholesale buyers, finish selection should also consider shelf life, carton labeling, visual consistency, and the mating bolt finish.
| Finish Option | Suitable Use | Buyer Consideration |
|---|---|---|
| Plain Stainless | General stainless assemblies, indoor machinery, clean appearance | Common for many wholesale orders; confirm cleaning requirement if appearance is important. |
| Passivated Stainless | Outdoor, wet, marine-adjacent, and corrosion-sensitive assemblies | Helps improve surface condition after manufacturing and handling. |
| Lubricated or Waxed | Stainless-on-stainless tightening where galling risk must be reduced | Confirm whether lubricant affects torque values, cleanliness, or packaging requirements. |
| Zinc Plating | Carbon steel flange nuts or mixed carbon steel bolt packages | Common for distributor stock; check plating color and salt spray requirement. |
| Hot Dip Galvanizing | Carbon steel outdoor structures and heavy-duty assemblies | Thread fit must be controlled because coating thickness affects assembly. |
| Black Oxide | Carbon steel indoor equipment, dark appearance, light oil protection | Not suitable as the main protection for severe outdoor corrosion exposure. |
For full assembly sourcing, this surface finish selection guide explains how nut, washer, and bolt finishes should be considered together.
Manufacturing and Quality Control
Common stainless steel flange nut sizes are typically produced by cold forming, followed by tapping, cleaning, inspection, and packing. Larger sizes, special stainless grades, fine threads, or non-standard flange geometry may require hot forging, machining, or a combined process. For wholesale programs, stable production planning helps keep repeated lots consistent in dimensions, finish appearance, label format, and packaging method.
Quality control can include raw material verification, dimensional inspection, thread Go/No-Go gauge checking, flange diameter measurement, across-flat inspection, visual surface checks, and sampling before packing. Buyers can review more inspection points in this guide to fastener quality control.
Wholesale Inspection Points
- Nut runs smoothly on the matching bolt without thread damage.
- Flange diameter, total height, and across-flat size match the approved standard or drawing.
- Serration shape is clear when serrated flange nuts are ordered.
- Surface is free from serious burrs, rust contamination, or mixed-material packing.
- Carton labels match size, material, finish, batch, and quantity.
- Mixed-size pallets are packed according to warehouse receiving requirements.
Приложения
Wholesale and Distributor Stock
Common sizes can be supplied in bulk cartons, small boxes, bags, and buyer-labeled pallets for resale and warehouse replenishment.
Machinery and Equipment
Used on machine frames, guards, brackets, guide rails, covers, and maintenance kits where an integrated bearing face simplifies assembly.
Automotive and Transport
Suitable for brackets, clamps, body hardware, and service parts where vibration resistance and repeatable assembly are important.
Construction Hardware
Applied in metal frames, rail supports, facade brackets, solar mounting accessories, and general structural hardware.
Marine and Outdoor Use
A4/316 stainless flange nuts are preferred where moisture, salt, or aggressive outdoor exposure must be considered.
Electrical Cabinets
Used for panels, mounting plates, grounding brackets, and stainless cabinet hardware requiring clean assembly.
How to Get a Faster Quotation
A complete wholesale inquiry helps the supplier quote the correct product, packaging, inspection level, and shipment arrangement without repeated clarification.
- Send the standard or drawing: DIN 6923, ISO style, ASME style, or custom drawing.
- List the size and pitch: for example, M6, M8, M10, M12, M16 or UNC/UNF inch thread.
- Confirm stainless grade and property class: A2-70, A4-70, A4-80, 304, 316, or 316L.
- State serrated or non-serrated flange face.
- Provide quantity by size, including fast-moving sizes and slower stock sizes separately.
- Share finish, lubrication, passivation, or cleaning requirement.
- Specify packaging: bulk carton, small box, bag, pallet, barcode, neutral label, or buyer label.
- Include inspection requirements, such as thread gauge, dimensional report, material document, pre-shipment photos, or third-party inspection.
- For final pricing and lead time, contact XZ Fastener with your size list and target packing method.
Часто задаваемые вопросы
Can stainless steel flange nuts be supplied for wholesale stock?
Yes. Stainless steel flange nuts can be supplied for wholesale stock in mixed metric sizes, bulk cartons, small boxes, bags, or buyer-labeled pallets according to order requirement.
Can DIN 6923 stainless steel flange nuts be supplied in A2 and A4 materials?
Yes. DIN 6923 stainless steel flange nuts can be supplied in A2/304 and A4/316 materials. A2 is commonly used for general applications, while A4 is preferred for coastal, marine, wet, and chemical environments.
What is the difference between serrated and non-serrated flange nuts?
Serrated flange nuts have teeth under the flange to help resist loosening on suitable surfaces. Non-serrated flange nuts provide a smoother bearing face and are preferred when the mating surface should not be marked.
Can wholesale orders include matching bolts and washers?
Yes. Buyers often request flange nuts together with washers and bolts, including metric hex head bolts and DIN 933 full thread hex bolts. Providing the full size list helps confirm thread fit, finish compatibility, and packaging.
How should I prepare a size list for a wholesale quotation?
List each size, pitch, material, finish, quantity, packaging method, and inspection requirement. If possible, separate fast-moving sizes from special sizes so pricing and lead time can be checked more accurately.
Can custom stainless steel flange nuts be supplied?
Custom stainless steel flange nuts can be reviewed according to drawing, sample, or application requirement. Details such as flange diameter, height, thread pitch, serration profile, material, and inspection level should be included.
Send Your Stainless Steel Flange Nut Wholesale Inquiry
For a faster quotation, send your size list, finish, quantity, packaging, and inspection requirements. If the flange nuts are part of a broader stock program, include matching bolts, washers, carton labels, pallet requirements, and reorder expectations so XZ Fastener can prepare a practical wholesale supply proposal.
Request a Quote from XZ Fastener
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