Fasteners · Stud Bolts · Construction & Steel Supply
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Flange Nut - DIN 6923 family, black finish, serrated flange underside (product illustration)
Flange Nut - DIN 6923 family, zinc-flake finish, thread and flange view (product illustration)
Flange Nut - DIN 6923 family, black finish, serrated flange underside (product illustration)Flange Nut - DIN 6923 family, zinc-flake finish, thread and flange view (product illustration)
Fasteners

Flange Nut

Nuts

Used with bolts, threaded rods, anchors, and structural fasteners for secure mechanical connection.

Size / Spec
M4-M30 1/4"-1" /4-12
Material
Carbon Steel / Alloy Steel / Stainless Steel
Standard
DIN 6923 / ISO 4161 / GB 6177 / ANSI / ASME
Surface / Finish
Zinc Plated / Black / HDG / Dacromet
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Product Details

Flange Nut is used with bolts, threaded rods, anchors, and structural fasteners for secure mechanical connection. The current supply reference is DIN 6923 / ISO 4161 / GB 6177 / ANSI / ASME, with Carbon Steel / Alloy Steel / Stainless Steel, Zinc Plated / Black / HDG / Dacromet, and M4-M30 1/4"-1" /4-12.

Final dimensions, tolerances, grade or class, coating system, matched components, inspection documents and packing must be confirmed against the purchase order, approved drawing or project specification before production.

Selection & Use Steps

  1. Confirm the joint drawing, service condition and governing standard.
  2. Select grade or class, diameter, thread series, length, end configuration and matched nuts or washers.
  3. Specify finish, coating, lubrication, inspection documents and traceability requirements.
  4. Inspect markings, dimensions, threads and coating condition before assembly.
  5. Install using the project-approved tightening sequence, tools and engineering procedure.

Technical Drawing

Confirm all dimensions against the approved drawing before production. Typical control points include overall length, diameter, thread series and tolerance, threaded length, end condition, head or point geometry where applicable, coating allowance and mating-part fit.

The technical drawing shown on this page, when available, is a selection reference and does not replace the buyer-approved manufacturing drawing.

Application Environment

Suitable application depends on the confirmed material, grade, finish and project design. Review exposure to moisture, chemicals, salt, temperature, vibration and dissimilar metals before selection.

For outdoor or corrosive service, confirm that the selected coating or stainless grade is compatible with the required service life and installation method.

Installation & Handling Precautions

  • Do not mix grades, heat numbers, thread series or nut classes during storage and installation.
  • Protect threads and coatings from impact, contamination and uncontrolled repair.
  • Confirm nut and washer compatibility, coating allowance and free thread engagement before assembly.
  • Do not apply a generic torque value; tightening depends on lubrication, coating, joint design and the approved engineering procedure.
  • Replace components with damaged threads, uncertain identification or unacceptable coating condition.

RFQ Checklist

  • Product name and governing standard: DIN 6923 / ISO 4161 / GB 6177 / ANSI / ASME
  • Grade, class or material: Carbon Steel / Alloy Steel / Stainless Steel
  • Diameter, thread, length and relevant dimensions: M4-M30 1/4"-1" /4-12
  • Surface finish or coating: Zinc Plated / Black / HDG / Dacromet
  • Quantity, matched nuts or washers, and packaging requirement
  • Required MTC, heat traceability, inspection or third-party documentation
  • Application, destination and any approved drawing or project specification
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Product reference gallery

Form and finish reference; final compliance follows order documents.
Ordering framework

Confirm the specification before quotation.

This product page identifies the available product family and basic supply range. Final compliance depends on the exact standard, grade, dimensions, finish, mating components, tests and documents stated on the purchase order or approved drawing.

01Standard and editionState the governing product standard, drawing or approved equivalent.
02Grade and classConfirm material grade, property class, condition and any supplementary requirement.
03Size and threadDiameter, pitch or TPI, thread series, fit or tolerance and handedness where applicable.
04Length and geometryOverall or effective length, head or end style, thread length and drawing dimensions.
05Finish and assemblyCoating standard, thickness or color, lubrication and mating-part compatibility.
06Quantity and evidenceLot quantity, packing, marking, MTC, inspection scope and destination requirements.

Continue by product family.

Review the relevant family page before sending the final standard, grade, dimensions, finish and quantity.

Request this product with a complete specification.

Product · standard · grade · dimensions · finish · quantity · documents · destination

Attach drawings or a size list in your email or WhatsApp conversation. State any required tests or documents for confirmation.

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