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العربية DIN 6914 structural bolts bulk order manufacturer
XZ Fastener manufactures DIN 6914 structural bolts for bulk orders used in steel construction, bridges, industrial frames, power projects, and heavy equipment connections. These high-strength bolts are commonly supplied with DIN 6915 nuts and DIN 6916 washers, so bulk production should be planned as a complete assembly when the project requires it. Buyers should confirm the governing standard, size list, property class, coating, lot traceability, packing marks, and inspection documents before production. If EN 14399 or another project approval standard applies, state it clearly at the quotation stage.
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Quick Specs
What Buyers Should Know Before Sourcing DIN 6914 Structural Bolts
DIN 6914 structural bolts are high-strength fasteners for load-bearing steel connections. They are not ordinary metric hex bolts. In bulk production, the bolt, nut, washer, coating, head marking, and inspection records must all match the project requirement.
Some projects still reference DIN 6914, while others require EN 14399 assemblies or project-approved equivalents. Before releasing a bulk order, compare the drawing and bill of materials with the DIN and ISO fastener standards guide. This prevents producing the wrong assembly system for the job site.
Common Purchasing Descriptions
Bulk procurement files may include structural bolts and standard metric bolts in one order. XZ Fastener can review DIN 6914 items together with related descriptions such as 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.
| Purchasing Description | Bulk Production Checkpoint |
|---|---|
| DIN 6914 M20 x 80 structural bolts Class 10.9 plain | Confirm standard, head dimensions, property class, marking, and mechanical test report |
| DIN 6914 bolts with DIN 6915 nuts and DIN 6916 washers | Confirm complete assembly, set packing, finish match, and lot traceability |
| Hot dip galvanized DIN 6914 structural bolt assemblies | Confirm coating thickness, nut clearance, thread engagement, and project acceptance rule |
| DIN 6914 structural bolts bulk order manufacturer supply | Confirm size table, batch quantity, pallet layout, labels, and inspection package |
For related heavy-duty product planning, review XZ Fastener industrial bolts.
Detailed Specifications Table
| Specification Item | Typical Requirement | Manufacturing Control Point |
|---|---|---|
| Standard | DIN 6914 | Confirm whether DIN 6914, EN 14399, or a project-specific equivalent is required |
| Assembly | Commonly paired with DIN 6915 nuts and DIN 6916 washers | Confirm bolt-only supply or complete bolting set before production release |
| Strength | High-strength structural bolting, commonly Class 10.9 where specified | Confirm mechanical testing, head marking, heat treatment, and certificate format |
| Material | Carbon steel or alloy steel according to mechanical property requirement | Confirm heat number, raw material, and heat treatment route |
| Finish | Plain, oiled, black, hot dip galvanized, zinc flake, or project coating | Check coating effect on thread fit, nut clearance, and tightening behavior |
| Inspection | Dimensional checks, hardness, tensile, proof load, thread fit, coating inspection | Confirm sampling rule, test frequency, and third-party inspection if required |
| Bulk Packing | Bulk cartons, assembly set boxes, wooden cases, or pallets | Confirm part number, lot number, size, set content, quantity, gross weight, and pallet marks |
Material and Grade Explanation
DIN 6914 structural bolts are selected for high-strength steel joints. Material quality, heat treatment, hardness, tensile performance, proof load behavior, and head marking must be controlled because these bolts are used in safety-related connections.
Class 10.9 is commonly specified where the project allows it, but the bolt grade alone is not the full requirement. Matching nuts and washers must follow the approved system. If the project requires preload control or installation records, the procurement team should confirm that before ordering.
Surface Finish Selection Guide
| Finish | Bulk Production Use Consideration |
|---|---|
| Plain or Oiled | Controlled storage or projects requiring later site treatment |
| Black Finish | General protection for controlled environments, subject to project approval |
| Hot Dip Galvanized | Outdoor steelwork where thicker corrosion protection is required |
| Zinc Flake | Corrosion protection with controlled coating build and thread-fit management |
For coating-sensitive assemblies, compare XZ Fastener coated fasteners before confirming the production route.
Manufacturing and Quality Control
Bulk structural bolt manufacturing needs repeatable control from raw material to final pallet marking. A DIN 6914 lot should not change marking, coating, nut fit, or document format from one shipment batch to the next.
- Review project drawings, DIN 6914 requirement, nut and washer standards, and coating requirement.
- Confirm raw material, heat number, heat treatment, and mechanical property targets.
- Control forming, thread rolling, head dimensions, shank length, and thread length during production.
- Inspect dimensions, head marking, hardness, tensile performance, proof load, and thread fit.
- Check coating appearance, coating thickness, and nut assembly after surface treatment.
- Pack by size, lot, assembly set, carton quantity, pallet mark, and document package.
For special lengths, non-standard markings, or project-specific packing, XZ Fastener can discuss custom fasteners according to order requirement.
Applications
DIN 6914 structural bolts are used where steel members require high-strength bolting assemblies. Selection should follow the approved engineering specification, not only the visible bolt shape.
- Steel buildings and warehouse frame connections
- Bridge steelwork and infrastructure joints
- Industrial platforms, towers, and equipment supports
- Power plant, mining, and petrochemical steel structures
- Heavy machinery frames where structural bolting is specified
Complete assemblies may require compatible industrial nuts and flat washers to match the project specification.
How to Get a Faster Quotation
A bulk order quotation is faster when the request includes the complete assembly and document requirement. If the project needs bolts, nuts, washers, coating, labels, and inspection records, list them together in one size table.
| Information Needed | Example |
|---|---|
| Size List | M20 x 80, M22 x 90, M24 x 100 according to project list |
| Assembly Requirement | DIN 6914 bolts with DIN 6915 nuts and DIN 6916 washers |
| Strength and Material | High-strength structural bolting, Class 10.9 where specified |
| Finish | Plain, black, hot dip galvanized, zinc flake, or project coating |
| Quantity | Pieces per size, assembly sets, shipment batch, container load, or project total |
| Packaging and Inspection | Set packing, pallet marks, material certificate, dimensional report, mechanical test report |
For bulk order review, send drawings, project specifications, size list, finish, quantity, packaging, and inspection requirements to contact XZ Fastener.
FAQ
What are DIN 6914 structural bolts used for?
DIN 6914 structural bolts are used for high-strength steel connections in buildings, bridges, industrial frames, platforms, and heavy structural projects where the specification requires this bolting system.
Can DIN 6914 structural bolts be manufactured with nuts and washers?
Yes. They can be supplied as bolt-only items or as assemblies with DIN 6915 nuts and DIN 6916 washers. Buyers should confirm whether the project requires complete sets.
Can DIN 6914 structural bolts be hot dip galvanized?
Hot dip galvanized finish can be supplied when specified. Matching nut clearance, coating thickness, thread fit, and assembly acceptance should be confirmed before production.
Is DIN 6914 the same as EN 14399?
No. Some projects may reference older DIN standards, while others require EN 14399 assemblies. Buyers should confirm the governing standard in the drawing or project specification before ordering.
What inspection records should bulk buyers request?
Common records include material certificate, dimensional inspection report, hardness test, tensile or proof load test, thread fit check, coating report when required, and packing list by lot.
What information is needed for a DIN 6914 bulk order quotation?
Send the size list, strength requirement, finish, quantity, nut and washer requirement, packaging method, inspection documents, and any project-specific standard or drawing.
Send Your DIN 6914 Bulk Order Requirement
For accurate manufacturing review, send your DIN 6914 structural bolt size list, finish, quantity, packaging method, and inspection requirements. Include matching DIN 6915 nuts, DIN 6916 washers, project drawings, coating rules, carton labels, pallet marks, delivery schedule, and required document package.
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