About Tina - Nuts Supplier in China

China hosts a supplier identified as Tina, which currently lists nine distinct products in its online catalogue. The catalogue covers a range of fastening components such as drop‑in anchors, hex nuts, anchor bolts, washers and thread bars. Each item is described using standard industry terminology, for example the Hex Nut Black Oxide Grade 4.8 references DIN 934 specifications. The product list includes both metric‑size anchors (e.g., M12×16×50 Yellow Drop‑In Anchor) and generic hardware like Flat Washer 3.5mm×25mm×1mm. No additional product families beyond these nine are indicated in the supplied data.

The listed items fall under the broader hardware and fastener categories rather than agricultural goods, despite the top‑category label. All products are presented without explicit HS‑code references, but they correspond to the HS Chapter 73 family for iron and steel articles. The supplier’s catalogue does not provide details on certifications, manufacturing locations within China, or volume capacities.

Product Range and Specialties of Tina

Tina’s catalogue features carbon‑steel drop‑in anchors, standard hex nuts, anchor bolts, metric‑size yellow drop‑in anchors, flat washers, threaded bars and DIN‑125 washers. Typical fastener grades in China range from 4.6 to 10.9 for carbon steel, with common surface treatments including black oxide, zinc plating and hot‑dip galvanising. DIN standards such as DIN 934 for hex nuts and DIN 125 for washers are widely recognised in construction and machinery applications, and the listed Hex Nut Black Oxide Grade 4.8 aligns with DIN 934 specifications.

Buyers of these fasteners usually specify dimensions (e.g., M12 thread, 16 mm length, 50 mm embedment for the yellow anchor) and mechanical properties such as tensile strength and shear capacity. Washers are often selected by inner diameter, outer diameter and thickness, measured in millimetres, while anchor bolts are evaluated by thread size, length and grade. The inclusion of a “Manufacturer Gi Thread Bar” suggests availability of custom‑cut threaded rods, which are commonly supplied in lengths from 1 m to 6 m and in grades 4.6, 8.8 or 10.9.

Trade and Export Information - Tina

Fasteners manufactured in China are routinely exported to construction, automotive and infrastructure projects across Southeast Asia, the Middle East and Europe. The HS‑code 7318 series covers threaded rods, nuts, bolts and washers made of iron or steel, and customs authorities often request material test reports for these codes. Importers typically require compliance with ISO 9001 quality management systems and may ask for CE conformity when the products are destined for the European market.

Standard export packaging for these items includes cardboard boxes, wooden crates or bulk bags, with each unit protected against corrosion by oiling or coating. Common Incoterms are FOB Shanghai or CIF destination ports, reflecting the heavy‑weight nature of steel fasteners. Chinese manufacturers often hold product‑specific certifications such as GB/T standards for mechanical properties, which buyers should verify during the procurement process.

Sourcing from Tina - Buyer Guidance

When sourcing from Tina, buyers should request a mill test certificate that confirms the steel grade, tensile strength and chemical composition for each fastener type. For coated items like the black‑oxide hex nut, a surface‑treatment report indicating coating thickness and corrosion resistance is advisable. Dimensional drawings or 3D CAD files can help verify that the M12×16×50 anchor meets project specifications.

It is prudent to obtain a sample batch before committing to larger volumes, especially to assess fit and finish of washers and anchors. Buyers should also confirm the supplier’s lead time, which for standard fasteners in China typically ranges from two to six weeks depending on order size, and clarify the packaging unit (e.g., quantity per box or pallet). Verifying that the supplier can provide ISO 9001 or GB/T compliance documentation will reduce downstream inspection delays.

What types of fasteners does Tina list in its catalogue?

Tina lists nine items, including carbon‑steel drop‑in anchors, low‑price hex nuts, anchor bolts, a M12×16×50 yellow drop‑in anchor, flat washers (3.5 mm × 25 mm × 1 mm), a threaded bar, a DIN‑125 washer and a wedge anchor through bolt.

Are the hex nuts conforming to any standard?

The Hex Nut Black Oxide Grade 4.8 is referenced to DIN 934, which defines the dimensions and mechanical properties for metric hex nuts of grade 4.8.

Which HS code family do these products belong to?

Fasteners made of iron or steel fall under HS Chapter 73, specifically code 7318 for nuts, bolts, screws, threaded rods and washers.

What certifications should a buyer request for these steel fasteners?

Buyers typically ask for a mill test certificate, ISO 9001 quality‑management certification and, where applicable, GB/T or CE conformity documents for the specific grade and coating.

What are the usual packaging formats for these items?

Standard packaging includes cardboard boxes for small quantities, wooden crates for bulk orders, and bulk bags for large‑volume washer or anchor shipments, each sealed to protect against moisture.

What lead time and minimum order quantity can be expected?

For standard Chinese fasteners, lead times generally range from two to six weeks, and minimum order quantities often start at 1 ton or at least 10 kilograms per item, depending on the specific product.