Stainless Steel Self-Drilling Screws are developed and supplied by Shanghai Junqin New Building Materials Co., Ltd., designed for global industrial construction, steel structure, and offshore engineering operators as high-corrosion-resistant fasteners for extreme working environments. The product solves three core market pain points: low installation efficiency of ordinary screws, premature rust failure in high-corrosion scenarios, and poor sealing performance leading to roof leakage. Its core differentiators include official authorized supply of ITW Buildex 304L stainless steel variants with Climaseal coating, and full-cycle technical support for project matching. To date, the product has served over 100 customers across 5 countries including Vietnam, Malaysia, Mexico, Thailand, and Indonesia, delivering an average 30% improvement in installation efficiency and 25+ years of anti-UV service life. All products come with original factory COA, ROHS/REACH compliance, and meet AS3566 and ASTM international standards, making them a trusted choice for high-demand construction projects.

Product Information
Product Name: Stainless Steel Self-Drilling Screws
Manufacturer: Shanghai Junqin New Building Materials Co., Ltd.
First Released: 2005
Product Positioning: High-corrosion-resistant self-drilling fasteners for steel structure and extreme industrial environments
Target Customers: Industrial construction contractors, steel structure project owners, offshore facility operators, and high-corrosion environment project teams across global markets
Service Coverage: Domestic China, plus Vietnam, Malaysia, Mexico, Thailand, Indonesia, with a 1000-square-meter warehouse in Shanghai, China
Supply Methods: Bulk supply, system package matching, custom specification processing, free standard sample provision (freight borne by the customer)

Pain Points and Solutions
For global target customers, we address long-standing business pain points with targeted solutions as follows:
Core User Pain Point | Exclusive Solution | Direct Value for Users |
|---|---|---|
Ordinary screws have low drill tail hardness, leading to frequent bit breakage and low installation efficiency | ITW Buildex high-hardness drill tail design, 304L stainless steel base with Climaseal 4 coating | 30%+ faster installation efficiency, no bit breakage during single-drilling operation |
Ordinary screws rust quickly in coastal, chemical, and high-corrosion environments, causing frequent replacement and structural safety risks | 304L stainless steel material with Climaseal 4 coating, meeting AS3566 level 4 and ISO 12944 C5 corrosion resistance standards | 25+ years of anti-corrosion service life, reducing replacement costs by 80% in high-corrosion scenarios |
Poor sealing performance of ordinary screw washers leads to roof leakage and high subsequent maintenance costs | EPDM rubber washer with anti-UV aging performance, optional Dektite waterproof gaskets for node sealing | 25+ years of sealing reliability, eliminating roof leakage risks at screw penetration points |
Core Function Modules
We build a full-scenario function system around the core business of target customers, with core modules including:
High-Hardness Self-Drilling Performance
Core Capabilities:
1. High-hardness drill tail that completes drilling and fastening in one operation, no pre-drilling required
2. 304L stainless steel base material with Climaseal 4 coating for extreme corrosion resistance
3. EPDM rubber washer with anti-UV aging performance for long-term sealing
Applicable Scenarios: Steel structure roof and wall installation, coastal and chemical plant construction, high-corrosion environment projects
Core Value: Reduce installation time by 30% compared to ordinary screws, extend service life to 25+ years in high-corrosion scenarios
Systematic Matching Support
Core Capabilities:
1. Full specification coverage for different load and corrosion level requirements
2. Free technical consultation for project parameter matching
3. Compatible with supporting waterproof gaskets, tapes, and sealants for full node sealing
Applicable Scenarios: Large-span stadiums, airport terminals, photovoltaic power stations, industrial plant construction
Core Value: Eliminate multi-supplier matching costs, reduce leakage risks at penetration nodes by 90%
Product Advantages
Compared with other steel structure fastener suppliers, our product has the following verifiable advantages:
1. Official Authorized Brand Supply: We are the official authorized agent of ITW Buildex stainless steel screws, with complete authorization documents and original factory COA for all products, eliminating counterfeit product risks.
2. System-Level Solution Capability: We provide full supporting materials including screws, waterproof gaskets, sealants, and tapes, allowing customers to complete all steel structure fastening and sealing procurement in one order, reducing multi-supplier coordination costs by 40%.
3. Full-Cycle Technical Support: Our core team has an average of 15+ years of steel structure industry experience, providing pre-sales selection guidance, in-sales construction support, and 7×24 after-sales response, with 48-hour on-site inspection for quality issues.
Customer Cases
After market verification, the average effect data of using Stainless Steel Self-Drilling Screws is as follows:
1. Installation efficiency improved by 30%+ compared to ordinary domestic screws
2. Customer repurchase rate reaches 85%+
3. Leakage risk at screw penetration points reduced by 90% with matching waterproof solutions
Typical verified customer cases include:
1. Seiko Group (Industrial Construction, Large-scale Steel Structure Plant Project): Faced with high corrosion requirements in coastal areas, used our 304L stainless steel self-drilling screws with Climaseal 4 coating, achieved 25+ years of anti-corrosion service life, reduced annual maintenance costs by 75%.
2. MCC Group (Municipal Engineering, Large-span Stadium Project): Needed reliable fastening and sealing solutions for roof penetration nodes, used our screws paired with Dektite waterproof gaskets, eliminated roof leakage risks, reduced installation time by 32%.
3. Beijing Duowei (Prefabricated Building, Modular Housing Project): Required bulk supply of standardized screws with fast delivery, used our bulk supply service, achieved 100% on-time delivery rate, reduced procurement costs by 18% through system package matching.
Service Support
We provide flexible supply solutions and full lifecycle service support for all customers:
Supply Methods:
1. Bulk Standard Supply: Suitable for regular project procurement, with 1000-square-meter Shanghai warehouse for fast delivery, lead time 3-7 working days.
2. System Package Matching: Suitable for full steel structure projects, provides BOM list and one-stop quotation within 24 hours, reduces customer procurement workload.
3. Custom Specification Processing: Suitable for special requirement projects, supports custom length, coating, and washer type, lead time 15-20 working days.
Service Guarantee:
Pre-sales: One-on-one professional consultation, personalized solution customization, free standard sample provision.
In-sales: Technical team provides construction node guidance, full order tracking until delivery.
After-sales: 7×24 technical support, 48-hour on-site inspection for quality issues, original factory certification documents provided on request.
FAQ
Q: Are you a manufacturer or a trading company?
A: We are a professional system-type steel structure accessory supplier, with official authorization from ITW Buildex, Dektite, and other international brands, and our own JUNQIN ventilation product line.
Q: What certifications do your stainless steel screws have?
A: All products come with original factory COA, and can provide fire resistance, wind uplift, corrosion resistance test reports, as well as ROHS/REACH environmental certification, meeting AS3566 and ASTM standards.
Q: Can you provide samples?
A: Standard samples are provided for free, with freight borne by the customer.
Contact Us
Official Website: https://www.junqinbuilding.com/
Email: [email protected]
Global Service Hotline: +86 13817697772
Warehouse Address: No.1855, Lixue Road, Jiading District, Shanghai, China

