What are the shipping options?

We usually ship by sea, air, or international express, and can provide reasonable solutions based on your transportation requirements.

What is the delivery time?

Delivery time is 20-30 days, depending on the order volume.

What materials are used for these screws?

We use high-quality raw materials such as carbon steel C1022A and SS410.

Carbon Steel Hexagonal Hex Head Self-Drilling Anti-Leak Roofing Screws

Name: Carbon Steel Hexagonal Hex Head Self-Drilling Anti-Leak Roofing Screws
Brand: Tianjin Primo Technology Co., Ltd.
SKU: 1968867961

Tianjin, ChinaTianjin Primo Technology Co., Ltd.

US$1,080.00

1-9 Tons

US$1,050.00

10-24 Tons

US$1,030.00

25+ Tons

Sample price:US$1.00/kg.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Self Drilling

Groove

Hex Washer Head

Connection

Roofing Connect

Head Style

Hex Washer Head Head

Standard

DIN, GB, GOST

Grade

4.8

Thread

Type B

Finish

Ruspert

MOQ

1 Ton Each Size

Application

Roofing Connection

Washer

EPDM Bounded Washer

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

Self-Drilling Design: Hex washer head self-drilling screw eliminates pre-drilling, speeding up roofing connection.

Anti-Leak Protection: Equipped with EPDM bounded washer to ensure watertight sealing and prevent leaks.

Multiple Size Options: Available in thicknesses 4.2-6.3mm and lengths 12-200mm to fit various roofing needs.

Customizable Finish: Offers zinc plated, ruspert, baking paint, or epoxy plating finishes for durability.

OEM/ODM Support: Accepts OEM and ODM orders with customized thread types and packaging designs.

High Production Capacity: Annual capacity of 20,000 tons with 200+ automatic production equipment sets.

Strict Quality Control: Uses high-quality raw materials like C1022A and SS410 with rigorous quality checks.

Flexible Payment Terms: Supports T/T, Western Union, Money Gram, Credit Card, PayPal, and L/C.

Company profile

Tianjin Primo Technology Co., Ltd.

Tianjin, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤9.22h

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:Why choose your company?

We have over 10 years of experience in fastener manufacturing and export, providing professional service and high-quality products with turnkey solutions.

Q:Do you accept OEM and ODM orders?

Absolutely yes, we accept both OEM and ODM orders to meet your specific requirements.

Q:What are the payment terms?

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

Q:Can I visit your factory online?

Yes, absolutely no problem. We can arrange online video inspections before shipment.

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

The MOQ is 1 ton for each size. Sample orders are also acceptable.

Send Inquiry

*To: