What materials are used for these screws?

The material is Nickel Alloy, specifically Monel K-500.

What is the production time for custom orders?

About 15 working days from receipt of your purchase order and advanced Payment.

China Wholesale Hexagon Head Self Drilling Roofing Tek Screws

Name: China Wholesale Hexagon Head Self Drilling Roofing Tek Screws
Brand: Wuxi Eternal Bliss Alloy Casting & Forging Co., Ltd.
SKU: 2010983765

Jiangsu, ChinaWuxi Eternal Bliss Alloy Casting & Forging Co., Ltd.

US$0.80-20.00

15 Sets

Sample price:US$20.00/set.Request sample

Product profile

Customization

Available

Material

Nickel Alloy

Type

Hexagon Head

Model NO.

Groove

Hexagon

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI

Grade

3.6

Model No.

Self Drilling Screw

Thread Type

Ab Type, Atype

Diameter

4.2-6.3, 8#-14#

Length

6.5-160mm, 1/4"-6 1/4"

Head Type

Hex Head, Spray Painted

Drive Type

Phillips, Pozi, Slot, Torx, Square, Combination

Surface

Zinc Plated, Oxide, Black, Nickel Plated, Bronze P

Transport Package

Plywood Case

Trademark

Origin

China

HS Code

73181400

Production Capacity

5000000sets/Year

Key features

Monel K-500 Material: Made from high-grade Monel K-500 nickel alloy for superior corrosion resistance.

Customizable Specifications: Diameter 4.2-6.3mm, Length 6.5-160mm, with various head and drive types.

OEM/ODM Service: Supports customization from samples and designs with available R&D engineers.

Low MOQ: Minimum Order Quantity is just 1 piece, suitable for small batch testing.

Flexible Payment Terms: 100% advance for orders under $1000; 50% T/T + balance for larger orders.

Fast Delivery Options: 5-10 days for in-stock items; 45 days for custom production.

Multiple Surface Finishes: Available in Zinc Plated, Oxide, Black, Nickel Plated, and Bronze P.

Standard Compliance: Meets DIN and ANSI standards with Grade 3.6 certification.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Wuxi Eternal Bliss Alloy Casting & Forging Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 10 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤2.51h

AI-Powered supplier vetting

SummaryEB China is an industrial equipment and materials supplier involved in petroleum drilling and production equipment, metallurgical equipment, special steel, non-ferrous alloys, new-material technology, and installation services. Its stated manufacturing scope includes castings, forgings, machinery, and e-bike products, with substantial annual capacity figures. The supplier reports ISO9001, ISO14001, and ISO45001 certifications for its factories. It has documented procedures for corrective and preventive actions, complaint handling, supplier-service assessment, and approved-supplier updates. However, quality traceability, quality-assurance status, and testing-equipment quantity are either unknown or reported as zero. R&D resources are limited to one engineer, with no new products reported in the previous year and no available SDK, although ODM, OEM, sample-based, and design-based customization are offered. Overseas service infrastructure and offline trade-show participation are absent. Customer-facing...

Supplier typeThe supplier operates across industrial equipment, specialized metals, foundry, forging, machinery, and e-bike manufacturing activities. Its stated scope also includes new-material R&D and installation services, indicating a manufacturer and industrial solution provider rather than a purely trading company.

CertificationsThe company states that its e-bike assembly factory, foundry and forging plant, and machinery plant have passed ISO9001, ISO14001, and ISO45001 management-system certification. The slices do not provide certificate numbers, validity dates, or issuing-body details.

After-Sales capabilityThe supplier has documented corrective/preventive-action and customer-complaint procedures with followed records, plus written procedures and records for assessing service capability. However, it has no overseas showroom, overseas agent or branch, or offline trade-show participation, so international service coverage is limited despite formal process evidence.

R&D capabilityInnovation resources appear limited: the supplier reports one R&D engineer, no new products in the previous year, and no available SDK. It does provide ODM and OEM services and undertakes customization, but the evidence does not demonstrate strong ongoing product innovation.

Production capacityThe supplier reports annual output capacities of 100,000 tons for castings, 30,000 tons for forgings, and up to 1,000,000 sets for machinery and E-V products, supported by 21–30 quality-control staff. However, the stated quantity and size of quality-control test equipment is zero, creating a clear production-quality control deficiency.

Customization capabilityThe supplier explicitly offers customization from samples, graphic or design inputs, and general customization, alongside ODM and OEM services for popular brands. These statements directly support capability for both customer-specified and original-design manufacturing.