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全發螺絲企業有限公司 Chaun-Fa Screw Ltd.
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Capabilities

Every critical process, from drawing to production.

We plan suitable machining routes around material, geometry, tolerance, and quantity to reduce risk and improve delivery efficiency.

01

Precision CNC turning

Machining of aluminum, titanium, stainless steel, copper alloys, and steels.

02

Forging and stamping

Integration of upstream forming processes for strength and production efficiency.

03

Threading and grinding

Internal and external threads, thread rolling, centerless grinding, and dimensional finishing.

04

Surface treatment

Plating, anodizing, passivation, and project-specific finishing.

05

Prototyping and pilot runs

Machinability and dimensional risk review before volume production.

06

Volume production

Standardized operations and batch traceability for reliable supply.

Machinable materials

Primary materials

Material selection is evaluated according to application, strength, corrosion resistance, and machining conditions.

Other specifications, equivalent international grades, and customer-supplied materials can be reviewed based on the drawing and supply conditions.

Aluminum alloy bars, billets, and turned components

MATERIAL 01

Aluminum alloys

01

Common grades across the 1000, 2000, 5000, 6000, and 7000 series.

A1050A2011A2017A2024A5052A6061A6063A7075
Titanium alloy bars, billets, and turned components

MATERIAL 02

Titanium alloys

02

For precision parts requiring low weight, corrosion resistance, and high specific strength.

Grade 2Grade 5Ti-6Al-4VGrade 9Ti-3Al-2.5V
Stainless steel bars, billets, and turned components

MATERIAL 03

Stainless steels

03

Free-machining, austenitic, martensitic, and precipitation-hardening grades.

SUS303SUS304SUS304LSUS316SUS316LSUS410SUS420SUS430SUS630 / 17-4PH
Copper, brass, lead-free brass, and phosphor bronze materials

MATERIAL 04

Copper alloys

04

Pure copper, free-cutting brass, forging brass, lead-free brass, and phosphor bronze.

C1020C1100C3604C3771C5191C6801C6802
Carbon steel and alloy steel bars and turned components

MATERIAL 05

Carbon & alloy steels

05

Carbon steels, chromium-molybdenum steels, free-cutting steels, bearing steels, and tool steels.

S20CS45CSCM415SCM435SCM440SUM24LSUJ2SKD11