How do you ensure quality?

We produce strictly by your request with sample confirmation. Our team uses high-precision machines to guarantee quality.

Do you provide free samples?

Yes, if the items are in stock, we can offer free samples.

Easy Install Metal Self-Drilling and Tapping Roofing Screw

Name: Easy Install Metal Self-Drilling and Tapping Roofing Screw
Brand: Jiaxing Sini Fastener Co., Ltd.
SKU: 2196021185

Zhejiang, ChinaJiaxing Sini Fastener Co., Ltd.

US$0.10

100,000 Pieces

Sample price:US$0.50/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Groove

Cross

Model NO.

Roofing Screw

Connection

Common Bolt

Head Style

Flat Head

Standard

DIN, GB, ANSI, BSW, JIS, GOST

Grade

Gr4.8,Gr8.8,Gr10.9,Gr12.9,etc

Length

up to 24"

Head

Truss

Point

Self-Drilling

Surface

Black

Salt Spray Test

1000 Hours

Drive

Cross Drive

Transport Package

Plastic Pail and Pallet

Specification

#12, #14, #15

Trademark

SINI

Origin

China

HS Code

7318159090

Key features

Self-Drilling Capability: Features a self-drilling point for direct installation without pre-drilling holes.

Customizable Dimensions: Length can be customized up to 24 inches to meet specific project requirements.

Diverse Head Styles: Available in Truss and Indented Hex Washer Head styles for various applications.

High Corrosion Resistance: Undergoes salt spray testing for up to 1000 hours to ensure durability.

Multiple Grade Options: Available in Gr4.8, Gr8.8, Gr10.9, and Gr12.9 to suit different strength needs.

OEM and ODM Services: Full customization available based on customer drawings, samples, or designs.

Wide Material Selection: Manufactured in both carbon steel and stainless steel with black surface finish.

Fast Stock Delivery: Stock items can be delivered within 2 days after payment receipt.

Company profile

R&D CapabilitiesCustomization from Samples100% Finished Products InspectionManagement Certification

Jiaxing Sini Fastener Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 15 Years CertifiedNearest Port: Shanghai Port; Ningbo PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryThe supplier operates in hardware and mechanical equipment, with stated import/export licensing and products including fasteners. It reports OEM and ODM capability, broad customization options, and manufacturing equipment that includes punching, rolling, deburring, laser cutting, bending, riveting, and hydraulic machines. Export sales account for 90% of total sales, and stated quotation terms include FOB, CFR, CIF, and EXW. However, the available evidence indicates important operational weaknesses: only one production line is reported, there is no valid manufacturing-capacity contract with related subcontractors, no inventory or overseas service infrastructure, no written supplier-service assessment procedure, and no documented corrective-action, complaint-handling, quality-assurance, or traceability systems. No certification information or specific customer cases are provided.

Supplier typeThe supplier is presented as a hardware and mechanical-equipment business, with licensed import/export and technology-import/export activities, plus sales and R&D of hardware products, mechanical equipment, and mechanical components. Its stated product scope includes fasteners such as carriage bolts, indicating a manufacturer/supplier focused on hardware and related mechanical products.

After-Sales capabilityThe supplier has no stated overseas agents or branches, overseas warehouse, overseas showroom, or overseas service countries, and it has no written procedures or records for corrective and preventive actions or customer-complaint handling. These explicit gaps indicate weak documented after-sales and international service infrastructure.

Production capacityThe supplier lists multiple processing machines and reports one production line, a one-month average lead time in both peak and off-season, and 90% export sales. Nevertheless, it lacks a valid manufacturing-capacity contract with related subcontractors, does not continuously reconcile production quantities, has no outsourcing SOP, and has no quality assurance or raw-material traceability, creating material production-control deficiencies.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization through its design and R&D capabilities. It also states that special parts can be manufactured, providing clear evidence of broad customization capability.

Product Q&A

Q:Are you a trade company or manufacturer?

Our company is an industry and trade integration business, located in Jiaxing, Zhejiang.

Q:What materials do you use?

We use carbon steel and stainless steel for our products.

Q:What are your main products?

Fasteners, stainless steel brackets, bolts, nuts, screws, washers, threaded rods, anchors, self-tapping screws, self-drilling screws, and stainless steel plates.

Q:How long is your delivery time?

It depends on stock availability. Stock products can be delivered in 2 days after payment. Normal production time is 15-20 workdays for one container.

Q:What are your payment terms?

Mostly 30% advance payment by T/T and 70% before shipment. For small amounts, we accept PayPal.