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China Suppliers Factory Grade 4.6 HDG Guardrail Bolts and Nuts M3~M36 for Secure Highway Safety Solutions
| Guardrail Bolt Specifications | |
|---|---|
| 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: |
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| Our advantage: |
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| 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
- All sizes can be customized.
- Cost-effective.
- Long service life.
- Hot dipped galvanized.
Frequently Asked Questions (FAQ)
Q1: What materials are available for your guardrail bolts?
A: We offer guardrail bolts in high-quality Carbon Steel, Alloy Steel (such as 20MnTiB, 40Cr, 42CrMo), and Stainless Steel (including 302, 304, 305, 316, 304L, 316L, 410, 430).
Q2: Which bolt grades can you supply?
A: Depending on the material, we supply various grades including Carbon Steel (Grade 4.8, 5.8, 6.8, A307), Alloy Steel (Grade 8.8, 10.9, 12.9, A325, A490), and Stainless Steel (A2-70, A4-70, GR.B8, GR.B8M).
Q3: What surface treatments do you apply for corrosion resistance?
A: Our bolts undergo highly corrosion-resistant surface treatments, mainly Hot Dipped Galvanized (H.D.G.) and Powder Painting, to withstand outdoor highway conditions.
Q4: Can these guardrail bolts be customized?
A: Yes, all sizes can be customized. We can manufacture non-standard bolts according to your specific drawings, photos, or samples.
Q5: What is your quality control and testing process?
A: We run strict quality checks using advanced equipment, including Calipers, Go & No-go gauges, Tensile test machines, Hardness testers, Salt spraying testers, H.D.G thickness testers, 3D detectors, and Projectors. We also provide material and test reports.
Q6: What is the minimum order quantity (MOQ) and supply capacity?
A: The minimum order quantity is 500kgs for each specification, and our current supply capacity is 1,000 tons per month.