Hex Bolts |
Socket Screws |
Flange Bolts |
Carriage Bolts |
Stud Bolts |
Threaded Rods |
Anchor Bolts |
Custom Carbon Steel Fasteners
DIN / ISO / ASTM / ANSI standards available
High Strength Carbon Steel Fasteners (Grade 4.8 / 5.8 / 8.8 / 10.9 / 12.9)
Cost-effective / High Load Capacity / Wide Surface Treatment Options
Zinc Plated / Hot-Dip Galvanized / Black Oxide / Dacromet / PTFE / Plain Finish
Carbon steel fasteners are widely used in structural and industrial applications due to their high strength, durability and cost-effectiveness. XZ Fastener supplies a full range of carbon steel bolts, nuts, screws, washers, threaded rods and anchor bolts in grades such as 4.8, 8.8, 10.9 and 12.9. With flexible surface treatments including zinc plating, hot-dip galvanizing, black oxide and Dacromet, carbon steel fasteners can meet different environmental and performance requirements. They are an ideal choice for construction, machinery, steel structure and general engineering projects where strength and value are essential.











We supply standard and custom carbon steel fasteners in various grades, sizes, thread types and surface finishes to meet different industrial and structural fastening requirements.
| Item | Available Options |
|---|---|
| Product Range | Hex Bolts, Socket Screws, Nuts, Washers, Threaded Rods, Stud Bolts, Anchor Bolts, Self-tapping Screws, Custom Carbon Steel Fasteners |
| Standards | DIN, ISO, ASTM, ANSI, EN, JIS, BS, GB and custom standards |
| Common Standards | DIN 931, DIN 933, DIN 912, DIN 934, DIN 125, DIN 127, ISO 4014, ISO 4017, ISO 4032, ASTM A193, ASTM A194, ASTM F1554 |
| Material | Low Carbon Steel, Medium Carbon Steel, High Carbon Steel, Alloy Carbon Steel |
| Grades / Strength | 4.8, 5.8, 8.8, 10.9, 12.9, ASTM A193 B7, ASTM A194 2H, ASTM A563 DH |
| Size Range | Metric: M2–M64, Inch: 1/8″–2″, customized sizes available |
| Thread Types | Metric Thread, UNC, UNF, BSW, Coarse Thread, Fine Thread, Full Thread, Half Thread, Custom Thread |
| Surface Finish | Zinc Plated, Hot-Dip Galvanized, Black Oxide, Dacromet, Zinc-Aluminum Coating, PTFE Coating, Phosphate Coating, Plain Finish |
| Manufacturing Process | Cold Forging, Hot Forging, Machining, Thread Rolling, Heat Treatment, Surface Treatment |
| Custom Service | Made to drawing, made to sample, special size, special grade, special coating, logo marking and customized packaging |
| Certificates | MTC, Inspection Report, CO, EN 10204 3.1 certificate available upon request |
| Applications | Construction, Machinery, Steel Structure, Automotive, Infrastructure, Energy, Railway, Bridge and General Industry |
Please send us the product type, size, standard, grade, finish and quantity. We will provide a suitable quotation as soon as possible.
We supply carbon steel bolts, nuts, washers, screws, threaded rods, stud bolts, anchor bolts and custom non-standard fasteners.
We can supply grades such as 4.8, 5.8, 8.8, 10.9, 12.9, ASTM A193 B7, ASTM A194 2H and ASTM A563 DH.
Available finishes include zinc plated, hot-dip galvanized, black oxide, Dacromet, zinc-aluminum coating, PTFE coating, phosphate coating and plain finish.
Yes. For outdoor applications, we recommend hot-dip galvanized, Dacromet, zinc-aluminum coated or PTFE coated carbon steel fasteners for better corrosion resistance.
Carbon steel fasteners usually offer higher strength and more competitive pricing, while stainless steel fasteners provide better corrosion resistance, especially in marine or chemical environments.
Yes. Grade 8.8, 10.9, 12.9 and ASTM A193 B7 carbon steel or alloy steel fasteners are commonly used for machinery, steel structures and heavy-duty applications.
We support DIN, ISO, ASTM, ANSI, EN, JIS, BS, GB and custom standards according to project or drawing requirements.
Yes. We can supply metric sizes, UNC, UNF, BSW and other inch thread specifications. Custom thread types are also available.
Yes. We support custom production based on drawings, samples or technical specifications, including special size, grade, thread, coating, marking and packaging.
Please send the product type, standard, size, grade, surface finish, quantity, packaging requirement and destination country or port. For custom products, please provide drawings or samples.
Yes. We can provide MTC, inspection report, CO and EN 10204 3.1 certificate according to project requirements.
We inspect raw materials, dimensions, thread accuracy, hardness, mechanical properties, surface finish, coating quality, packaging and labeling before shipment.
Send us the product type, size, grade, surface finish and quantity. Our team will provide a suitable quotation for your project.
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International Organization for Standardization (ISO) standards
German Industrial Standards
Chinese National Standards
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Japanese Industrial Standards
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