What is your delivery time?

Standard parts take 7-15 days, and non-standard parts take 15-25 days. We ensure delivery as soon as possible with guaranteed quality.

How to Custom-made (OEM/ODM)?

Send us new product drawings or samples, and we will custom-make the hardware as required. We also provide professional advice to maximize performance.

What are your terms of packing?

Generally, we pack goods in neutral transparent bags, color boxes, plastic boxes, or cartons. If you have a patent, we can pack in your branded boxes with authorization.

Which mode of transport would be better?

Since production is heavy, we advise delivery by sea. However, we respect your views on other transportation methods as well.

Tamperproof High Quality Black Phosphated Carbon Steel Self-Tapping Drywall Screws Gray Phosphted Fine Coarse Thread Screw Triangular Screws Thread

Name: Tamperproof High Quality Black Phosphated Carbon Steel Self-Tapping Drywall Screws Gray Phosphted Fine Coarse Thread Screw Triangular Screws Thread
Brand: Hengling Metal Products (Huzhou) Co., Ltd.
SKU: 2103354532

Zhejiang, ChinaHengling Metal Products (Huzhou) Co., Ltd.

US$0.10

1,000-4,999 Pieces

US$0.08

5,000-9,999 Pieces

US$0.06

10,000-49,999 Pieces

US$0.01

50,000+ Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Shape of Head

Round

Model NO.

Triangle Thread Screw

Surface Finishing

Bronze Plated

Certification

ISO, GS, RoHS, CE

Customized

Non-Customized

Product Name

Triangular Thread Screw

Keywords

Triangular Screw

Fastener Standard

ASTM, ANSI, AISI, DIN, ISO, Ifi, JIS

Fastener Material

Stainless Steel

Fastener Grade

B8/B8m

Fastener Finish

Plain

Size

M6-M12; 1/4"-3/4"

Length

10mm - 300mm

Material Range

Stainless Steel / Carbon Steel

Thread Size

M6/M6.3/M7/M8/M10/M12

Bolts Length

12/14/25/40/45/50/55 mm

Mark

According to Customer's Requirement

Surface Treatment

Black, Zinc, Plain, Zinc Plated, Blue Anodized

OEM & ODM Custom

Sample

Transport Package

Standard Packaging or Customized

Specification

Standard Specifications or Customized

Trademark

HENGLING

Origin

Zhejiang, China

Production Capacity

5000000 Pieces/Year

Key features

Tamperproof Design: Triangular drive screws require special bits, preventing removal with ordinary tools.

Self-Tapping Capability: Creates its own thread in mating material, eliminating need for pre-tapping.

Enhanced Locking: Resists loosening under vibration without requiring spring pads or auxiliary devices.

High Precision Manufacturing: Manufactured to international standards with extremely high tolerances.

OEM & ODM Services: Accepts custom drawings and samples for tailored product development.

Wide Material Range: Available in Carbon Steel, Stainless Steel, Brass, Aluminum, Titanium, and more.

International Compliance: Adheres to ASTM, ANSI, DIN, ISO, IFI, and JIS standards.

Cost-Effective Solution: Reduces assembly costs by eliminating pre-tapping and extra locking components.

Company profile

Importers and Exporters

Hengling Metal Products (Huzhou) 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: 7 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤2.20h

About Our Factory & Business Background

AddressNo. 57-1, Zhenxing South Road, Ganshan Industrial Zone, Zhongguan Town, Deqing County, Huzhou City, Zhejiang Province, Huzhou, Zhejiang, China

Plant Area3400 square meters

Number of Employees22

Terms of PaymentLC, T/T

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity5 Kgs

Supply Chain Partners12

Our Production Capability & Technical Expertise

Main ProductsScrews‬, Nuts, Fasteners‬

Production Lines6

Production MachinesConfidential Facility, Cold Heading Forming Facility

QA/QC inspectors1 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instruction but no written records

R&D Engineers1 people

Traceability of Raw MaterialsYes

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2017-12-25

Main MarketsDomestic

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff2

Overseas Agent/BranchNo

New Products Launched in Last yearYes

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015

Cooperated with Fortune 500No

Product Q&A

Q:What are your main products and material supply?

Our main products include Screws, Bolts, Nuts, rivets, Special Non-standard studs, and Turning parts. Materials include Carbon Steel, Alloy Steel, Aluminum alloy, Stainless Steel, Brass, Copper, and Titanium alloy.

Q:When can I get the price?

We usually offer a quotation within 12 hours, and special offers within 24 hours. For urgent cases, please contact us directly by phone or email.

Q:If you cannot find the product you need on our website, what should I do?

You can send pictures, photos, or drawings via email for us to check availability. We also accept samples via DHL/TNT to develop new models specifically for you.

Q:Can you strictly follow the tolerance on the drawing and meet high precision?

Yes, we can provide high-precision parts and manufacture them according to your drawing.

Q:How should I order and make payment?

Payment is by T/T. For samples, 100% is paid with the order. For production, 30% deposit is paid before arrangement, and the balance is paid before shipment.