We are a professional manufacturer with over 10 years of experience in producing high-strength stud bolts and threaded rods, including but not limited to B7, B7M, L7, and B8. Our products are widely used in critical applications such as oil and gas projects, where reliability and performance are essential.
Key specifications include:
- **Model No.:** Double End Stud B7, B7N, L7
- **Application:** Oil & Gas Projects
- **Finish:** Color Zinc Plated
- **Trademark:** KLF
- **Transport Package:** 25kg per carton, 36 cartons per pallet
- **Specification:** 1/2" - 4"
- **Origin:** Ningbo, China
- **HS Code:** 7318190000
Our products comply with international standards such as ASTM A193-B7/B7M, A320-L7/L7M, and ASTM A193-B8/B8M. We offer a variety of grades including Gr. B7/B7M, B8/B8M, and B16. The materials used include alloy steel, stainless steel, brass, and more, ensuring durability and corrosion resistance.
Surface treatments available: Plain & Oiled, Black, ZP, ZY, HDG, Teflon Coated, and others. Our packaging options include bulk packing on 900KGS pallets, making it convenient for large-scale shipping and storage.
We take pride in delivering high-quality products that meet the strictest industry requirements. Whether you're looking for standard or custom solutions, our team is here to support your needs. Contact us today to learn more about our range of stud bolts and threaded rods designed for demanding environments.

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