Name: Hexagon Socket Screws
Brand: ZeYao
SKU: 281028276

↵Hexagon socket screws

Hexagon socket screws are a type of screw with a hexagon socket drive mechanism. They are commonly used in machinery, precision instruments, molds, electronic equipment, and industrial assembly.

Product Description

Product Name: Hexagon socket screws

Material: Stainless steel

Thread diameter: 2.5mm, thread length: 4mm, pitch: 0.45mm

Drive type: Hexagonal wrench (hexagonal wrench/hexagonal wrench)

Manufacturer: Zeyao

Applications: Automotive, molds, machinery, electronics, and construction industries.

Common materials

1. Carbon steel

Grade: Grade 4.8 / 8.8 / 10.9 / 12.9

Application: General mechanical connections, high-load connectors

Heat treatment: Tempering, quenching + tempering (depending on the grade)

2. Stainless steel

A2-70 (304) is suitable for ordinary rust-proof environments

A4-80 (316) is suitable for strong acid and alkali, marine, medical and other corrosive environments

No need for electroplating, has natural corrosion resistance

3. Alloy steel (such as SCM435)

Used to manufacture 12.9 grade high-strength screws

Excellent mechanical properties and long fatigue life

Widely used in heavy-duty conditions such as automobiles, molds, and aviation

Surface treatment process

Surface Treatment	Features	Applicable Fields
Black Oxide (Bluing)	Oxidation resistant, slight rust protection	General industry, internal machine parts
Zinc Plating (White/Yellow)	Low cost, decorative appearance	Home appliances, furniture, hardware
Dacromet	Corrosion resistant, environmentally friendly	Automotive chassis, construction machinery
Nickel / Chrome Plating	Shiny appearance, corrosion resistance	Medical devices, decorative hardware
Electroless Zinc Flake Coating	Cr6+-free, high salt spray resistance	Automotive fasteners, heavy industrial equipment