What's your delivery time?

Standard parts take 7-15 days, while 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 use neutral transparent bags, color boxes, or plastic boxes with 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.

5.5mm 6.3mm Thread Diameter Flat Head-Style M20-2.5 Thread Size Concrete Fasteners Combination Screw China Distributors

Name: 5.5mm 6.3mm Thread Diameter Flat Head-Style M20-2.5 Thread Size Concrete Fasteners Combination Screw China Distributors
Brand: Hengling Metal Products (Huzhou) Co., Ltd.
SKU: 2085782222

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

Type

Mushroom Head

Model NO.

Stainless Steel Screw Fasteners

Groove

Triangle

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, ANSI, BSW, JIS, GOST

Grade

12.9

Product Name

Stainless Steel Fastener

Keywords

Hardware Fastener

Model Number

Carriage Bolt

Fastener Standard

DIN/Ifi

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/M7m8/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

Transport Package

Standard Packaging or Customized

Specification

Standard Specifications or Customized

Trademark

HENGLING

Origin

Zhejiang, China

Production Capacity

5000000 Pieces/Year

Key features

Diverse Material Options: Available in Stainless Steel (300/316 series), Carbon Steel, Alloy Steel, Brass, Copper, and Titanium.

Comprehensive Customization: Accepts OEM/ODM, full customization from samples or designs, and custom markings per requirement.

Wide Size Range: Sizes span from M5x10mm to M100x3000mm, covering metric and standard dimensions.

Multiple Surface Finishes: Offers passivation, zinc plating, black, plain, HDG, yellow zinc plated, chromed, and nickel plated.

High Precision Capability: Capable of strictly following drawing tolerances and providing high-precision CNC machining parts.

International Standard Compliance: Adheres to DIN, GB, ISO, JIS, ANSI, BSW, and GOST standards for quality and safety.

Fast Response Time: Quotations provided within 12 hours, with special offers not exceeding 24 hours.

Flexible Delivery Options: Standard parts delivered in 7-15 days, non-standard in 15-25 days, with sea or air transport available.

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: ≤0.30h

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 are not more than 24 hours. For urgent cases, please contact us directly by phone or email.

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

You can send pictures, photos, or drawings via email for us to check. Alternatively, send samples by DHL/TNT, and we will develop new models especially for you.

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

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

Q:How should I order and make payment?

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