What's your shipping method?

It could be shipped by sea, by railway, by air or by express(EMS, UPS, DHL, TNT, FEDEX and etc.). We will confirm with you before order placing, you can also tell us the shipping method you prefer.

What's your payment method?

Wire transfer, Paypal, Western Union, L/C etc.

Do you have quality warranty?

12 months warranty for damages by non-artificial reasons. We have professional QC department, every items will checked and tested before shipment.

Phosphate/Galv-Coated Self-Tapping Screws with Anti-Corrosion

Name: Phosphate/Galv-Coated Self-Tapping Screws with Anti-Corrosion
Brand: Shanghai Soverchannel Industrial Co., Ltd.
SKU: 2232945075

Shanghai, ChinaShanghai Soverchannel Industrial Co., Ltd.

Negotiable

1 Ton

Sample price:US$0.09/piece.Request sample

Product profile

Material

Carbon Steel

Shape of Head

Hexagon

Surface Finishing

Black Zinc

Model NO.

Self-Tapping Screw

Certification

ISO, GS, RoHS, CE

Customized

Total Length

2.5-60mm

Grade

8.8/10.9/12.9/B7/A325

Head Type

Flat Cross Head /Pan Head/Round Head

Transport Package

Carton + Wooden Pallet

Specification

M1 M1.2M1.4M1.5M1.6M3M4M5M6M3.5ST4.2

Trademark

SVC

Origin

Jiangsu, China

HS Code

7318140090

Production Capacity

5000 Ton Per Year

Key features

Anti-Corrosion Protection: Phosphate, Galv, and Dacro surface treatments prevent rust and extend service life.

High Strength Grades: Available in 8.8, 10.9, 12.9, B7, and A325 grades for heavy-duty applications.

OEM/ODM Customization: Full customization available for size, dimensions, surface treatment, logo, and packaging.

Wide Size Range: Thread sizes from M8 to M48 and lengths from 40mm to 400mm.

International Certifications: Compliant with ISO, GS, RoHS, CE, ASTM A193, and METRIC SYSTEM standards.

Fast Delivery: Sample orders take 5-10 days; mass production takes 7-10 days if in stock.

12-Month Warranty: Covers damages caused by non-artificial reasons with professional QC checks.

Secure Packaging: Carton and wooden pallet packaging ensures intact delivery during bulk transport.

Company profile

Shanghai Soverchannel Industrial Co., Ltd.Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤24h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company and a trade company, with a registered location in Shanghai while its physical address is in Haian, Nantong, Jiangsu. It reports extensive equipment and broad customization capabilities, and finished-product inspection instructions are uniformly followed. Quality assurance is indicated, but service-management controls are weak: no written procedures or records were reported for supplier-service assessment, corrective and preventive actions, or customer complaints, and no approved-supplier list exists. Certification evidence is limited to CE, while no factory environmental impact assessment report is available. The supplier reports no available SDK for R&D. Financial information is represented only by years, without sufficient evidence to assess credibility. No customer cases are provided.

CertificationsThe supplier reports CE certification capability. However, it also states that no factory environmental impact assessment report is available, so the evidence supports only limited certification coverage rather than comprehensive compliance.

After-Sales capabilityThere are no written procedures or records for effective supplier-service assessment, corrective and preventive actions, or customer complaint handling, and no approved supplier list is maintained. These explicit gaps indicate weak documented after-sales and service-management capability.

Production capacityThe supplier lists manufacturing-related equipment including blasting, CNC, cold heading, pickling, punching, spheroidizing annealing, threading, and wire drawing machines. This supports a broad apparent fastener-processing capability, although the company is also classified as a trade company and no capacity metrics are provided.

Customization capabilityThe supplier explicitly reports customization from samples, designs, full customization, minor customization, and flexible customization. This is direct evidence of broad customization support.

Product Q&A

Q:Why do some products have oil on them?

This type of product will have a layer of rust proof oil on the surface, which is designed to prevent the product from rusting

Q:Are you a trading company or manufacturer?

We are a comprehensive company integrating industry and trade, with a dedicated factory covering an area of 20000 square meters and an independent sales team.

Q:How long is your delivery time?

Sample order takes 5-10 working days. Mass production depends on order quantity, usually, it takes 7-10 working days if goods are in stock.

Q:Can I get a sample before bulk production?

Yes, for sure. Sample will be provided for quality checking. Sample cost will be refunded once bulk order placed.

Q:Can we customize the size, dimension, surface treatment, logo and packages of the product?

Yes, we can customize products according to client's requirements. If you have designs already, can send to us. We also have professional design team, can help to do the design work.