Is factory inspection or video check available?

Yes, you can visit our factory online or conduct an online video inspection before shipment.

What packaging options are available?

We offer bulk packing in woven bags, cartons, plastic bags, or color print boxes and cartons as per customer design and requirements.

What are the common applications for these screws?

These bi-metallic screws are primarily used for roofing connections in solar panel systems and other structural applications.

5.525mm 6.025mm Bi-Metallic Sheet Metal Screws with EPDM Washers

Name: 5.5*25mm 6.0*25mm Bi-Metallic Sheet Metal Screws with EPDM Washers
Brand: Tianjin Primo Technology Co., Ltd.
SKU: 2126084222

Tianjin, ChinaTianjin Primo Technology Co., Ltd.

5.5*25mm 6.0*25mm Bi-Metallic Sheet Metal Screws with EPDM Washers

US$0.07-0.08

10,000 Pieces

Sample price:US$0.08/piece.Request sample

Product profile

Customization

Available

Drive Type

Hex

Finish

Zinc-Nickel Alloy, Ruspert, Dacromet, Zinc Plated

Grade

4.8

Head Type

Hex Head

Material

SUS304/SS316+Scm435

Standard

DIN, GB, GOST

Product Name

Bi-Metal Self-Tapping Screws

Thread

Fine Thread

MOQ

1 Ton Each Size

Application

Roofing Connection

Washer

SS304+EPDM Bounded Washer

Type

Self-Tapping Screws

Groove

Hex Washer Head

Connection

Roofing Connect

Head Style

Hex Washer Head

Transport Package

Bulk in Bag or Box Package

Specification

4.2 to 6.3 mm

Trademark

Primo

Origin

China

HS Code

7318140090

Production Capacity

10000 T/ Year

Key features

Bi-Metallic Construction: Combines SUS304/SS316 stainless steel with SCM435 carbon steel for superior strength and corrosion resistance.

EPDM Washer Integration: Features SS304+EPDM bounded washers to ensure waterproof sealing and secure roofing connections.

Multiple Finish Options: Available in Zinc-Nickel Alloy, Ruspert, Dacromet, and Zinc Plated finishes for varied environmental needs.

Flexible Thread Types: Offers Type A, Type B, Type C, double thread, and Point #3, #4, #5 options for diverse applications.

Customizable Specifications: Supports customized thread, groove, head style, and packaging to meet specific project requirements.

Large Production Capacity: Annual output reaches 20,000 tons with 200+ automatic production lines ensuring timely delivery.

OEM/ODM Support: Accepts OEM and ODM orders with flexible MOQ of 1 ton per size and sample orders available.

Professional Manufacturer: 10+ years experience with 3 production bases in Tianjin, China, offering one-stop fastener solutions.

Company profile

Tianjin Primo Technology Co., Ltd.

Tianjin, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤9.45h

About Our Factory & Business Background

AddressTianjin, China

Average Lead TimePeak Season Lead Time: 1-3 months Off Season Lead Time: one month

Our Production Capability & Technical Expertise

Main ProductsScrews, Nails, Rivets, Staples, Bolt, Nut, Washer, Stamping Part

Our Industry Experience & Global Business Record

Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Product Q&A

Q:What are the main materials used for these screws?

The screws are made of bi-metallic materials, specifically SUS304 or SUS316 stainless steel combined with SCM435 carbon steel.

Q:What is the minimum order quantity (MOQ)?

The MOQ is 1 ton for each size. However, sample orders are also acceptable.

Q:What payment terms do you accept?

We accept T/T, Western Union, Money Gram, Credit Card, PayPal, and L/C.

Q:What is the delivery time for orders?

Delivery time is typically 20-30 days, depending on the order volume. Peak season lead time is 1-3 months, while off-season is one month.

Q:Can you provide OEM and ODM services?

Yes, we absolutely accept OEM and ODM orders and can customize products according to your requirements.

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