What materials are used for the screws?

The screws are made of Carbon Steel (C1022A) with various surface treatments like Zinc Plating or Black Phosphating.

Galvanized Carbon Steel Truss Head Self Drilling Screw

Name: Galvanized Carbon Steel Truss Head Self Drilling Screw
Brand: Tianjin Boya Metal Products Co., Ltd.
SKU: 787782552

Tianjin, ChinaTianjin Boya Metal Products Co., Ltd.

US$1,000.00

1-24 Tons

US$950.00

25+ Tons

Sample price:US$10.00/bag.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Round Head

Model NO.

10mm-254mm

Groove

Cross

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, ANSI, BSW, JIS

Grade

4.8

Finish

Yellow Zinc/Galvanized/Black Phosphated

Diameter

3.5mm-6.3mm

Length

13mm-50mm

MOQ

1 Ton

Transport Package

Shipping by Sea

Trademark

BOYA

Origin

Tianjin China

Production Capacity

5000tons/Year

Key features

Customizable Dimensions: Diameter 3.5mm-6.3mm and Length 13mm-50mm available for customization.

Multiple Finish Options: Yellow Zinc, Galvanized, Black Phosphated, Nickel Plated, and Bronze Plated finishes.

Flexible Drive Types: Available in Phillips, Pozi, Slot, Torx, Square, and Combination drive types.

Wide Size Range: Diameters from M3.9 to #10 and lengths from 13mm to 150mm.

Standard Compliance: Meets DIN, GB, ANSI, BSW, and JIS standards.

OEM Service Available: Supports full customization, flexible customization, and minor customization.

Versatile Application: Suitable for sheet metal and various construction applications.

Secure Packaging: Bulk packing in cartons with export pallet options for safe transport.

Company profile

High Repeat Buyers ChoiceExhibition ExperienceFast DeliveryMinor Customization

Tianjin Boya Metal Products Co., Ltd.

Tianjin, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: OEM Service Available CertifiedCustomization Options: Customization from Designs, Full Customization, etc. CertifiedExport Year: 8 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤4.10h

AI-Powered supplier vetting

SummaryTianjin Boya Metal Products Co., Ltd. is a China-based trading company established in 2017 with 18 employees and a stated business scope covering metal materials, wire mesh, hardware, building materials, and related products. The supplier reports access to wire and nail mills, advanced production equipment, and annual production capacity of approximately 50,000 tons, but its entity is identified as a trading company and associated companies are in wholesale and retail. It demonstrates customization options and OEM service for well-known brands, but does not provide 3D software design, ODM, SDK, or reported new-product development. Service-management controls are weakly documented: no written procedures or records were provided for service assessment, corrective actions, or complaint handling. It has no overseas warehouse, showroom, agent, or branch, but has participated in an offline trade fair. Financial information is only represented by year labels, without substantive financial results, so credibility...

Supplier typeThe supplier is explicitly identified as a trading company, with wholesale and retail as the associated-company industry and a broad import-export business scope for metal, hardware, construction, and related products. Although it describes its own wire and nail mills, the legal and business classification provided is Trading Company.

After-Sales capabilityThe supplier reports no written procedures or records for customer complaint handling, service-capability assessment, or corrective and preventive actions. It has six qualified service suppliers and supports stated quotation and payment terms, but the documented after-sales management system is insufficiently evidenced.

R&D capabilityThe supplier states that it is not a professional technical supplier, had no new products during the past year, and does not offer ODM, 3D software design, or SDK services. These explicit limitations indicate weak demonstrated innovation and technical-development capability.

Production capacityThe company describes advanced production equipment, its own wire and nail mills, and approximate annual capacity of 50,000 tons; it is located near Xingang Port and Tianjin Airport. However, the legal entity is classified as a trading company, so the extent of directly controlled production capability is not fully clear, while the stated capacity is positive evidence.

Customization capabilityThe supplier reports customization ranging from design-based and full customization to flexible and minor customization, and also states that it provides OEM services for well-known brands. It does not provide ODM, 3D software design, or SDK services, but the stated customization and OEM capabilities are explicit strengths.