Precision Stainless Steel Hex Screws

We specialize in integrated CNC precision machining of stainless steel turning parts, delivering hex screws with smooth tightening, secure locking, and excellent corrosion resistance. These components are widely used in industrial equipment, valve assemblies, precision machinery, and tooling fixtures.

With factory-direct supply, we support global low-volume, multi-variety customization of CNC turned stainless steel components. Featuring full-range thread options and standardized surface treatments, our hex screws are designed to meet diverse fastening and assembly requirements, making them a reliable and cost-effective choice for industrial applications.

Customization Service

We offer full customization with fast response based on your drawings:

• Nominal screw diameter and length

• Hex size (across flats)

• Thread specifications (metric, imperial, unified, fine thread, custom)

• Head thickness

• Partial thread or full thread options

Our engineers provide one-to-one drawing evaluation, rapid quotation, and flexible lead times-ensuring precise solutions for different assembly scenarios.

Material & Process Advantages

We use high-quality stainless steel combined with standardized surface treatments such as passivation, zinc plating, zinc-nickel alloy plating, and chrome plating to ensure durability and performance.

Key Benefits

• Stainless steel base provides excellent corrosion and rust resistance; combined with surface treatments for double-layer protection in indoor, outdoor, high-humidity, and mildly corrosive environments.

• Precisely machined hex heads with uniform across-flat dimensions ensure a tight fit with tools, preventing slipping or edge damage during tightening.

• Threads are smooth and burr-free with accurate profiles; Go/No-Go gauge compliant, ensuring smooth engagement without jamming.

• Stable structural strength prevents deformation or thread stripping under tightening force.

• Surface treatments are uniformly applied across the entire screw (including head and threads), ensuring long-term durability without peeling or excessive wear.

These features make our CNC turned stainless steel components highly reliable for fastening applications.

Precision Manufacturing & Quality Assurance

Optimized Machining Process

To ensure coaxiality between the hex head and threads, CNC processes are optimized using hex bar turning and one-step thread forming, achieving coaxiality ≤ 0.03 mm for precise tightening and locking performance.

Strict Precision Standards

• Across flats tolerance: ±0.03 mm

• Length tolerance: ±0.03 mm

• Diameter tolerance: ±0.01 mm

• Thread tolerance: Class 6H, compliant with international standards

• Geometric tolerance: ≤0.03 mm

Full Quality Control System

• Raw material composition inspection

• Material verification

• First article inspection

• Full dimensional inspection

• Surface treatment quality check

• Tightening and locking performance test

• 100% final inspection

Every process is fully inspected to ensure consistent quality and zero defects.

Global Order Support

• Packaging: Individual anti-scratch and anti-rust protection + carton with cushioning, custom branding supported

• Compliant with international shipping standards

• Lead time:

☉ 7–10 days for small batches

☉ 15–30 days for mass production

We provide dedicated one-to-one service for global buyers of CNC turned stainless steel components.

Core Specifications

Category	Specification (for Stainless Steel Hex Screws)
Machining Accuracy	Across flats ±0.03 mm; diameter ±0.01 mm; length ±0.03 mm; coaxiality ≤0.03 mm; thread Go/No-Go compliant
Surface Treatment	Passivation, zinc plating, zinc-nickel alloy plating, chrome plating (customized, full coverage protection)
Size Range	Thread M1–M50; length 5–3000 mm; supports metric, imperial, and custom threads (full/partial, fine/coarse)
Lead Time	7–10 days (small batch); 15–30 days (mass production, including machining and surface treatment)
Packaging	PE bag + carton with impact protection, custom packaging available

Applications

Widely used in various fastening and assembly scenarios:

Industrial equipment assembly

Consumer electronics fastening

Motor fixing and locking

Precision tooling and fixtures

Industrial jigs and fixtures

Smart home device assembly

Outdoor installations and structural fastening

Our Commitment

With years of experience in precision 304 stainless steel turning, we have developed advanced fastening manufacturing processes and a mature global service system. We understand the key requirements for screw accuracy, locking performance, and corrosion resistance across different applications.

From drawing optimization and process design to production, delivery, and after-sales support, we provide dedicated one-to-one service. Our high-precision, durable, and corrosion-resistant stainless steel hex screws help customers improve product quality and reliability, making us a trusted long-term partner for precision metal components.

Customization & Support

Custom manufacturing, drawing optimization, sample delivery, and bulk quotations are all supported.
Our engineering team is ready to respond quickly and support your project.