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: ≤0.24h

AI-Powered supplier vetting

SummaryThe supplier is a combined hardware-processing and trading company offering screws, nuts, and fasteners. It reports broad customization, ODM and OEM capabilities, new products within the past year, six production lines, and seven years of export experience. Products can follow GB, DIN, ANSI, BS, and JIS standards and support various coating processes. However, quality and service controls show procedural weaknesses: finished-product inspections have instructions but no written records, and service procedures and corrective actions likewise lack records. The supplier has one quality inspector, no overseas warehouse, showroom, agents, branches, or offline trade-show participation, and does not continuously reconcile production quantities by batch or lot. Financial information is insufficient for assessment, and no specific customer names or case details are provided.

Supplier typeThe supplier is identified as a combined company whose business scope covers hardware processing and sales, fasteners, metal products, equipment, and related goods, while its offered products specifically include screws, nuts, and fasteners. This indicates a combined manufacturing/trading profile rather than a narrowly specialized entity.

After-Sales capabilityThe supplier has procedures for service assessment, corrective and preventive actions, and complaint handling, but no written records for these processes. It also has no overseas warehouse, showroom, overseas agents or branches, and has no stated overseas service countries, which limits demonstrated after-sales support capability.

R&D capabilityThe supplier reports new products within the past year, ODM services, and broad design customization. It does not have an available SDK, but SDK availability is not sufficient by itself to negate the demonstrated product-development and design-service capabilities.

Production capacityThe supplier reports six production lines, a cold-heading forming facility, and seven years of export experience, supporting established manufacturing capability for fasteners. Nevertheless, it does not continuously reconcile quantities by batch or lot, and only one quality assurance and control inspector is reported, indicating control limitations alongside the production capacity.

Customization capabilityThe supplier explicitly offers customization from samples, minor customization, customization from designs, full customization, and flexible customization. It also states that non-standard products can be customized and that various coating processes are available for screws, providing direct evidence of broad customization capability.

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.