What's your delivery time?

Standard parts: 7-15 days. Non-standard parts: 15- 25 days.We will make the delivery as soon as possible with guaranteed quality.

How to Custom-made (OEM/ODM)

If you have a new product drawing or a sample, please send it to us, and we can custom-make the hardware as you require. We will also provide our professional pieces of advice on the products to make the design more realized & maximize the performance.

What are your terms of packing?

Generally, we pack our goods in neutral Transparent bags/ Color boxes/ plastic box+ cartons. If you have a legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Which mode of transport would be better?

In general, the production is heavy, we advise you to make delivery by sea, Also, we respect your views on other transportation as well.

Premium Quality Round Head Square Neck Carriage Bolts for Durable Construction

Name: Premium Quality Round Head Square Neck Carriage Bolts for Durable Construction
Brand: Hengling Metal Products (Huzhou) Co., Ltd.
SKU: 2152083892

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

Stainless Steel

Shape of Head

Hexagon

Model NO.

Triangle Thread Screw

Surface Finishing

Zinc Plated

Certification

ISO, GS, RoHS, CE

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

Triangular Thread Design: Unique triangular thread shape cuts its own thread, eliminating pre-tapping and saving costs.

Self-Locking Mechanism: Designed to resist loosening under vibration without needing spring pads or supplemental devices.

Enhanced Security: Requires special triangular drive drill bit for removal, preventing unauthorized access.

High Precision Tolerances: Meticulous quality control ensures tight tolerances suitable for high-precision applications.

OEM & ODM Customization: Accepts drawings and samples for bespoke models, dimensions, and surface treatments.

Wide Material Range: Available in Stainless Steel, Carbon Steel, Brass, Aluminum, Titanium, and various alloy grades.

Comprehensive Surface Treatments: Options include Zinc Plated, Black Oxide, Hot Dipped Galvanized, and Blue Anodized.

International Standard Compliance: Products strictly adhere to DIN, ISO, ASTM, ANSI, and IFI standards for quality and safety.

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: ≤0.27h

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 are Screws, Bolts, Nuts, rivets, Special Non-standard studs, Turning parts High-end precision complex CNC Machining parts, etc. Materials include Carbon Steel, Alloy Steel, Aluminum alloy, Stainless Steel, Brass, Copper, Titanium alloy, or according to your requirement.

Q:When can I get the price?

We usually offer you a quotation within 12 hours, and the special offer is not more than 24 hours. For any urgent cases, please contact us directly by phone or send an email to us.

Q:If you can not find on our website the product you need how to do it?

You can send the pictures/photos and drawings of the products you need by email, we will check if we have them. We develop new models every month. Or you can send us samples by DHL/TNT, and then we can develop the new model especially for you.

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

Yes, we can, we can provide high-precision parts and make the according to your drawing.

Q:How should I order and make payment?

By T/T, for samples 100% with the order; for production, 30% paid for deposit by T/T before production arrangement, the balance to be paid before shipment.