Import Brass J Bolt M6 To M45 — Buy in Bulk from Supplier in China

Brass J bolts from Haifa Standard Part Corp. cover metric thread sizes M6 through M45, with the J-shaped hook designed for anchor fastening in concrete and masonry applications. The source indicates a supply capacity of up to 6,000 tons per year, with brass as the base material offering inherent corrosion resistance in humid or chemically exposed environments. These fasteners suit construction frameworks, automotive assembly lines, and heavy machinery installations where tensile load distribution and resistance to thread galling matter. The available Incoterms include FOB and CIF, though exact port details and minimum volumes require direct confirmation with the supplier.

The brass alloy used in these J bolts typically contains copper with zinc content adjusted for machinability and strength, with standard brass grades offering tensile strength in the range of 320 to 550 N/mm2 depending on temper and diameter. J bolts in this size span present specific forming challenges: the hooked portion must maintain structural integrity during bending, and thread rolling after forming affects final mechanical properties. Thread pitch follows standard ISO metric coarse series for M6 to M45, with typical pitch values from 1.0 mm up to 5.0 mm at the larger diameters. Surface finish is typically as-manufactured with optional passivation; buyers should specify if dezincification resistance or lead-free composition is required for potable water or food-contact applications.

Primary buyers include structural steel contractors, precast concrete manufacturers, automotive OEMs seeking non-corroding anchor solutions, and marine equipment fabricators. The M6 to M45 range allows specification across light-duty cable management through to heavy-duty structural anchoring. When sourcing from Zhejiang province, buyers should verify material certification against GB/T or ISO standards, confirm thread class tolerance (typically 6g for external threads), and request dimensional inspection reports for hook inside diameter and straight leg length. The supplier's response rate of zero percent suggests all terms, current stock positions, and exact lead times must be established through direct outreach before committing to an order.

Haifa Standard Part Corp. is located in Changan Town, Haining, Zhejiang Province, China, with its address listed as south of Datie Bridge on Provincial Road. The supplier holds an 'imported' tier designation and a 'harbor' trust tier, which indicates basic profile verification without advanced assurance credentials. The response rate is recorded at 0.00 percent with zero average response hours, meaning buyers should anticipate delayed or uncertain communication and plan sourcing timelines accordingly. No information is provided about factory size, year of establishment, export license specifics, or in-house quality accreditation.

The listing positions Haifa Standard Part Corp. as a volume-capable source for brass fasteners with emphasis on construction, automotive, and machinery sectors. Buyers should independently verify production capability against the claimed 6,000 ton annual capacity, as no audit details or third-party verification is referenced. The supplier's specialization in standard parts suggests catalog production rather than custom engineering, though the M6 to M45 range implies tooling investment across a broad diameter spectrum. Direct contact is essential to confirm current operational status, sample availability, and whether the supplier maintains separate export handling or requires buyer-arranged logistics.