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China Guardrail Bolt and Nut Suppliers - Grade 4.6 HDG Guardrail Bolts M3~M36 from Factory
| Guardrail bolt | |
| Size: | 5/8-11 X 1 1/4″, 5/8-11 X 2″, 5/8-11 X 8″ |
| Material: | Carbon Steel |
| Grade: | A307 Type A |
| Finish: | H.D.G., Powder painting |
| Head type: | Cross round head, hex head, round head oval neck, cutting edge round head, etc |
| Packing: | bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand |
| Application: | Highway Guardrail Hardware; |
| Test Equipment: | Caliper, Go&No-go gauge, Tensile test machine, Hardness tester, Salt spraying tester, H.D.G thickness tester, 3D detector, Projector, Magnetic flaw detector |
| Supply Ability: | 1000 tons per month |
| minimum order: | 500kgs for each specification |
| Trade Term: | FOB/CIF/CFR/CNF/EXW/DDU/DDP |
| Payment | T/T, L/C , D/A , D/P, etc |
| Market: | South&north America/Europe/East&South east Asia/ Australia and etc. |
| Professional: | More than 15 years experience in fasteners industry |
| Our Main market is North&South America and proficient in IFI standard. | |
| Our advantage: | One-stop shopping; |
| High quality; | |
| Competitive price; | |
| Timely delivery; | |
| Technical support; | |
| Supply Material and Test Reports; | |
| Samples for free; | |
| With 2 years quality guarantee period after shipment. | |
| Notice: | Please lets know the Size, quantity, Material or Grade, surface, If it is special and Non-standard products, please supply the Drawing or Photos or Samples to us |
Guardrail Bolts and Nuts
Guard rail bolts are important parts of guardrail system. Wuhan Dachu can manufacture different types of bolts and nuts, such as anti-theft bolts, for guard rail beam and post. Standard: DIN931/933/912/DIN603, ASTM, JIS, BSW, Nonstandard bolt (according to your order) and etc.
Material and Grade
1) Material: High quality carbon steel. Grade: 4.8, 5.8, 6.8, GR.2, A307.
2) Material: Alloy steel: 20MnTiB, 40Cr, 42CrMo. Grade: 8.8, 10.9, 12.9, GR.2, GR.5, GR.8, A325-1, A490-1, GR.B7, GR.B7M.
3) Material: Stainless steel: 302, 304, 305, 316, 304L, 316L, 410, 430, carbon steel. Grade: A2-50, A4-50, A2-70, A4-70, GR.B8, GR.B8M.
Surface Treatment: Great Corrosion Resistant
Size: M6-M64.
Advantages
1. All size can be customized.
2. Cost-effective
3. Long service life.
4. Hot dipped galvanized.
Frequently Asked Questions (FAQ)
What standards and head types of guardrail bolts do you supply?
We manufacture guardrail bolts according to DIN931/933/912/DIN603, ASTM, JIS, and BSW standards, as well as customized non-standard bolts. Available head types include cross round head, hex head, round head oval neck, cutting edge round head, and more.
What materials and grades are available for your bolts and nuts?
We offer carbon steel (Grades 4.8, 5.8, 6.8, A307 Type A), alloy steel (Grades 8.8, 10.9, 12.9, A325, A490, etc.), and stainless steel (302, 304, 316, etc.) to meet different strength and environment requirements.
What surface treatments do you apply for corrosion resistance?
Our main surface treatments are Hot Dipped Galvanized (H.D.G.) and powder painting, which ensure excellent corrosion resistance and a long service life for highway hardware applications.
What is your minimum order quantity (MOQ) and supply capacity?
Our minimum order quantity is 500kgs for each specification, and we have a strong monthly supply capability of up to 1000 tons.
How do you ensure the quality of your guardrail bolts?
We utilize professional testing equipment, including calipers, Go & No-go gauges, tensile test machines, hardness testers, salt spraying testers, H.D.G thickness testers, 3D detectors, projectors, and magnetic flaw detectors to guarantee high quality. We also offer a 2-year quality guarantee period after shipment.