What materials are used for these hex nuts?

Commonly used materials include 45# and 40Cr carbon steel, with hardness values between 28 and 35.

What are the common specifications available?

Common specifications include 20 mm, 25 mm, 32 mm, 36 mm, and 40 mm.

What is the minimum order quantity?

The minimum order quantity is 500Kg.

Premium Grade 4 Black Carbon Steel Hex Nut for M15-M75

Name: Premium Grade 4 Black Carbon Steel Hex Nut for M15-M75
Brand: Handan Xingming Fastener Co., LTD
SKU: 1975543781

Hebei, ChinaHandan Xingming Fastener Co., LTD

US$0.50

1,000-9,999 Pieces

US$0.30

10,000-99,999 Pieces

US$0.10

100,000+ Pieces

Sample price:US$0.20/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

M4-M75

Connection

Universal Nut

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, GOST, BSW

Grade

4.8/6.8/8.8/10.9/12.9

Delivery

5-7 Days in Stock, 7-30 Days Not in Stock

Customized

Yes

Level

4.8/6.8/8.8/10.9/12.9

Payment Methods

T/T

Sample

Available

Transport Package

Woven Bag/Carton/Pallet

Specification

M4-M75

Trademark

XingMing

Origin

China

HS Code

7318160000

Production Capacity

1000tons/Month

Key features

Wide Grade Range: Available in 4.8, 6.8, 8.8, 10.9, and 12.9 strength grades.

Multiple Standards: Complies with DIN, ANSI, GB, JIS, GOST, and BSW standards.

Fast Delivery: 5-7 days for in-stock items, 7-30 days for custom orders.

OEM/ODM Support: Accepts OEM/ODM requests for large quantities at no extra charge.

Free Samples: Free samples available, buyer covers shipping cost.

Versatile Application: Ideal for highways, railways, bridges, and foundation projects.

Competitive Pricing: Direct factory pricing with volume discounts for bulk orders.

Quality Assurance: ISO 9001 certified with strict material testing and inspection.

Company profile

Fast DeliveryQuality AssuranceProduction Process VisualizationHigh Repeat Buyers Choice

Handan Xingming Fastener Co., LTD

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service Available CertifiedCustomization Options: Customization from Designs, Full Customization, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Tianjin PortAverage Response Time: ≤0.77h

AI-Powered supplier vetting

SummaryHandan Xingming Fastener Co., LTD is a China-based limited-company manufacturer/factory in Hebei, offering post-tension bars, prestressed anchorages, threaded rods, bolts and nuts, and screws. It reports OEM service for well-known brands, new products within the past year, and several levels of customization. However, no certification information or customer cases are provided. Service-management controls are weakly documented: no written procedures or records are reported for supplier-service assessment, corrective/preventive actions, or complaint handling. The supplier has no overseas warehouse, showroom, agents or branches, and has not participated in offline trade shows. Production scale appears limited based on the stated workforce of 20 employees; specific equipment, capacity, and output data are unavailable.

Supplier typeThe supplier is identified as a manufacturer/factory and a limited company located in Hebei, China. Its listed products are fasteners and related construction components, including post-tension bars, prestressed anchorages, threaded rods, bolts, nuts and screws.

After-Sales capabilityThe supplier reports no written procedures or records for customer-complaint handling, service-capability assessment, or corrective and preventive actions. It also has no overseas warehouse, showroom, agents or branches, although it states a one-month average lead time and accepts specified service quotation and payment terms.

R&D capabilityThe supplier states that it had new products during the past year and provides customization from designs, including full, minor and flexible customization. However, it reports no available SDK, and no detailed R&D team, patents, facilities or development metrics are provided.

Customization capabilityThe supplier explicitly reports customization from designs, full customization, minor customization and flexible customization, indicating multiple customization options. It also reports OEM service for well-known brands, although no project examples, technical limits or validation records are provided.