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العربية steel structure bolts manufacturer
XZ Fastener manufactures steel structure bolts for steel frames, warehouses, bridges, towers, industrial platforms, equipment bases, and infrastructure projects. Buyers can source hex bolts, heavy hex structural bolts, anchor bolts, flange bolts, matching nuts, and washers according to DIN, ISO, ASTM, EN, ANSI, or drawing requirements. Common options include carbon steel and alloy steel grades with black oxide, zinc plated, hot dip galvanized, Dacromet-type, Geomet-type, or other specified finishes. Size lists, coating requirements, packaging, marking, and inspection documents can be supplied according to order requirement.
Quick Specs
What Buyers Should Know Before Sourcing Steel Structure Bolts
Steel structure bolts must be selected by load requirement, connection type, standard, grade, coating, and installation method. A general hex bolt may be suitable for secondary connections, while high-strength structural bolts may be required for friction grip joints, bridge assemblies, towers, or heavy steel frames. For project selection, buyers can review fasteners for steel structures before confirming the bolt list.
For bridges and infrastructure, bolt sets may require matched nuts, washers, coating control, traceability, and project inspection documents. XZ Fastener recommends confirming grade, surface finish, nut compatibility, washer hardness, and packing labels before bulk production, especially for bridge construction structural bolts and anchor systems.
Common Purchasing Descriptions
- Steel structure bolts with nuts and washers for building frames
- High strength structural bolts for steel connection projects
- Hot dip galvanized structural bolts for outdoor steel structures
- ASTM heavy hex bolts, EN structural bolt sets, DIN and ISO hex bolts
- 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
Detailed Specifications Table
| Artículo | Opciones disponibles | Buyer Notes |
|---|---|---|
| Tipo de producto | Hex bolts, heavy hex structural bolts, flange bolts, anchor bolts, stud bolts, U bolts, bolt-nut-washer sets | Confirm whether bolts are for primary structural joints, secondary steelwork, or base plate anchoring. |
| Estándares | DIN 931, DIN 933, ISO 4014, ISO 4017, ASTM A325, ASTM A490, EN 14399, ANSI B18.2.1, custom drawings | Project drawings should specify standard, grade, dimensions, washer type, and nut requirement. |
| Rango de tamaños | Metric and inch sizes supplied according to order requirement | Send diameter, length, thread length, pitch, and quantity by size. |
| Material | Carbon steel, alloy steel, medium carbon steel, boron steel, and specified structural materials | Material should match strength grade, heat treatment, coating process, and project specification. |
| Strength Grade | Class 8.8, 10.9, 12.9, ASTM structural grades, EN structural property classes | For high-strength joints, match nuts and washers to the bolt grade and tightening method. |
| Acabado superficial | Plain, black oxide, zinc plated, yellow zinc, hot dip galvanized, Dacromet-type, Geomet-type, PTFE | Specify indoor or outdoor use, coating thickness, color, salt spray requirement, and thread fit requirement. |
| Matching Parts | Heavy hex nuts, structural nuts, flat washers, hardened washers, spring washers, anchor plates | Nut grade and washer hardness should be confirmed for load-bearing assemblies. |
| Inspection | Dimension, thread fit, hardness, tensile, proof load, coating thickness, visual finish, packing check | Inspection reports can be prepared according to order requirement. |
Material and Grade Explanation
Steel structure bolts are commonly manufactured from carbon steel or alloy steel with heat treatment when required. Grade 8.8 carbon steel hex bolts are widely used for general structural applications, while Grade 10.9, Grade 12.9, ASTM structural grades, and EN structural bolt classes may be selected for higher-load connections.
For projects requiring documentation in Europe or public infrastructure, buyers should confirm the applicable standard, mechanical property class, marking, coating, and supporting documents. The guide on CE compliance for structural fasteners explains what project buyers should check before shipment.
Surface Finish Selection Guide
Plain and Black Oxide
Plain and black oxide finishes are often selected for indoor steelwork, machinery frames, or assemblies that will receive additional painting. Black oxide DIN 933 bolts may be used where appearance and basic surface treatment are required.
Zinc Plated
Zinc plated DIN 933 bolts and other zinc plated structural bolts are suitable for controlled environments and lighter corrosion exposure. White zinc and yellow zinc can be supplied according to order requirement.
Hot Dip Galvanized
Hot dip galvanized DIN 933 bolts and structural bolt sets are commonly used for outdoor steel structures. Buyers should confirm coating thickness, nut fit, washer type, and inspection expectations.
Dacromet and Geomet
Zinc flake coatings can be considered when higher corrosion resistance is needed, especially for outdoor equipment, bridges, and selected high-strength structural bolts.
PTFE Coating
PTFE may be selected for special friction, color identification, or corrosion requirements, particularly where structural bolts are part of equipment, flanges, or harsh service assemblies.
Corrosion Review
For coastal, chemical, or exposed steelwork, review material and coating selection for structural bolts before placing the final order.
Manufacturing and Quality Control
Manufacturing can include raw material inspection, cutting, cold heading or hot forging, thread rolling or machining, heat treatment, surface preparation, coating, final sorting, and export packing. For structural applications, dimensional control, thread accuracy, head marking, hardness, tensile performance, and coating consistency are important purchasing points.
XZ Fastener can arrange checks for dimensions, thread pitch, go/no-go gauges, hardness, tensile strength, proof load, coating thickness, visual appearance, packing labels, and pallet condition. Buyers can review the fastener quality control process to prepare clear inspection requirements.
Structural Bolt Control Points
- Confirm standard, grade, bolt length, thread length, and marking requirement.
- Match nuts and washers to the bolt grade and project standard.
- Check whether the connection requires preloading or controlled tightening.
- Specify finish, coating thickness, salt spray requirement, and thread fit after coating.
- Define packaging labels by size, grade, heat number, batch, or project position if required.
Aplicaciones
Project Use
- Steel buildings, warehouses, workshops, and industrial halls
- Bridges, walkways, platforms, and guardrail structures
- Transmission towers, support brackets, and infrastructure frames
- Base plates, machinery foundations, and anchor bolt assemblies
- Heavy equipment frames, crane systems, and prefabricated steel modules
Related Structural Products
- heavy hex structural bolts for large steel connections
- BS 4395 high strength structural bolts for specified project requirements
- Matching heavy hex nuts, hardened washers, anchor bolts, and custom coated fasteners available upon request
How to Get a Faster Quotation
Send the bolt standard, diameter, length, thread length, material, strength grade, finish, coating thickness, quantity, matching nuts, washer type, packaging method, destination, and inspection documents required. If the project uses drawing numbers, installation positions, or multiple connection types, include them in the size list.
For project packages, XZ Fastener can quote bolts, nuts, washers, anchor bolts, threaded rods, and custom coated parts together. Clear RFQ details help avoid mismatched grade, finish, thread, or packing labels.
Preguntas frecuentes
What grades are common for steel structure bolts?
Common grades include Class 8.8, 10.9, 12.9, ASTM structural grades, and EN structural property classes. The correct grade depends on load requirement, joint design, and project standard.
Can XZ Fastener supply steel structure bolts with nuts and washers?
Yes. Bolt-nut-washer sets can be supplied according to standard, grade, finish, and order requirement. Nut grade and washer hardness should be matched to the bolt specification.
Which finish is suitable for outdoor steel structure bolts?
Hot dip galvanized, zinc flake coated, zinc plated, and selected custom coated finishes may be suitable depending on corrosion exposure, service life, and project documents.
Do structural bolts need special inspection?
Structural bolt orders often require dimensional checks, thread inspection, hardness, tensile or proof load testing, coating thickness checks, marking confirmation, and packaging verification.
Can steel structure bolts be supplied according to drawings?
Yes. Drawing-based steel structure bolts, anchor bolts, and custom fasteners can be reviewed when dimensions, material, grade, finish, tolerance, and inspection requirements are provided.
What information should be sent for a steel structure bolt quotation?
Please include size list, standard, material, grade, finish, quantity, packaging, inspection requirements, matching nut and washer needs, coating thickness, and any project drawings.
Send Your Steel Structure Bolt Inquiry
For a faster quotation, send your size list, finish, quantity, packaging, and inspection requirements. Please also include standard, material grade, thread length, coating thickness, nut and washer requirement, project drawings, and any marking or document needs.