8.8 Grade Black Oxide High-Strength Hexagonal Bolts and Nuts Heavy-Duty External Fasteners for CNC Machining

Customization:	Available
After-sales Service:	1
Warranty:	3

⚙️ Basic Information

Model NO.

machining

Condition

New

Certification

CE, ISO9001

Standard

DIN, ASTM, GB

Material

Alloy

Process

CNC Machining, Turning, Milling

Surface Treatment

Polishing, Plating, Anodize

Quality Control

100% Inspection

MOQ

1 PCS

Production Capacity

10000 pieces Per Week

📸 Product Showcase

📝 Product Description

Item	Description
Service	OEM / ODM or Sample Production
Process Technology	Precision CNC Machining + Surface Treatment
Material Capabilities	Grey iron, ductile iron, carbon steel, stainless steel, alloy steel, aluminum alloy (A380, 6061), zinc alloy, copper, brass, bronze, etc.
Size	Customized as per drawings
Weight Range	0.02-120 KGS
Tolerance	±0.02mm
Heat Treatment	Annealing, Solution, Normalizing, Tempering, Quenching, Induction hardening
Testing	CMM, Digital Height Gauge, roughness tester, hardness tester, projection machine

🏭 Manufacturing Capabilities

Our facility specializes in Forging, Casting, CNC machining, and various surface treatments with an integrated production line. Our professional and experienced R&D team can develop new products rapidly with high quality.

Core Advantages:

Professional and experienced engineer team
Advanced production and inspection equipment
Powerful quality control system (ISO9001, TS16949, ISO14001)
Wide range of OEM parts: Casting (sand, lost wax, die casting), Forging, and CNC parts

📦 Packaging & Delivery

Package Size

80.00cm * 60.00cm * 40.00cm

Gross Weight

500.000kg

Packaging Type

Customized Packaging

❓ Frequently Asked Questions

How could I get a sample?

Before we receive the first order, please afford the sample cost and express fee. We will return the sample cost back to you within your first order.

What is the lead time for samples?

For existing items, samples can be prepared within a standard timeframe (contact for specific days based on item complexity).

Can you apply our brand/logo on the products?

Yes. We can print your Logo on both the products and the packages if you can meet our minimum order quantity (MOQ).

Are custom colors available for the products?

Yes, the color of products can be customized according to your specifications if the MOQ is met.

How do you guarantee product quality?

We implement strict detection during production and perform rigorous sampling inspections before shipment to ensure intact packaging and quality compliance.

What international standards do you follow?

We strictly adhere to international standards including ISO, DIN, AISI, ASTM, BS, and JIS to meet global industrial requirements.