Shanghai Zinsn Industrial Co., Ltd. · Shanghai & Haiyan, China +86 21 6487 6003 [email protected]

Let's talk specifications, volumes and lead-times

Whether you need a single FCL of standard drywall screws or a custom-spec OEM run with branded retail packs, we respond fast and quote straight. Pick whichever channel suits you — there is no form to fill in.

Fastest reply

WhatsApp

Message us directly — +86 188 6836 8833. English and Spanish. Messages are answered seven days a week, including Sundays.

Full specifications

Email

Send diameter, length, head type, drive, finish, packaging and target volume to [email protected] — we quote pricing, lead-time and Incoterms within one business day.

Shanghai office

Sales, technical and customer support

86 Caobao Road, Xuhui District, Shanghai, China
Open in maps

Haiyan factory

Production, quality control and shipping

No.1 Xinfeng Road, Qinshang Town, Haiyan, Zhejiang, China
Open in maps
+86 188 6836 8833 — mobile, English / Spanish

Business hours

When we are at our desks

Monday – Friday09:00 – 18:00 China Standard Time (GMT+8)
Saturday09:00 – 13:00, sales enquiries only
SundayWhatsApp messages answered
  • Custom OEM specifications welcome — we build to drawing.
  • Samples shipped within 5 working days of approval.
  • FOB Shanghai or Ningbo. CIF / DDP available.
  • Factory audits and on-site visits accommodated.
Export container loading at the Zinsn factory shipping bay

What happens next

From inquiry to first container

01

Inquiry review

Within 24 hours, our technical sales team reviews your requirements and confirms feasibility.

02

Quotation

You receive a detailed quote: pricing, lead-time, packaging, MOQ and Incoterms.

03

Sample approval

For new specs we ship physical samples for your approval before tooling and production.

04

Production & QC

Your order is scheduled into the line; in-process and final QC reports are shared.

05

Shipping

FOB Shanghai or Ningbo by default; CIF or DDP available. Documentation handled in-house.

06

After-sales

Your assigned account manager handles re-orders, claims and new product development.