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Black zinc plated hexagonal nuts, draft beer mechanical parts, CNC machining service

Place of Origin	GuangDong Dongguan
Brand Name	SITUO
Certification	ISO9001 & TS16949
Model Number	ST-140004

Product Details

Material:

Carbon Steel

Category:

Nut

Surface Treatment:

Zinc Plating-black

Sample Period:

10 To 15 Days

Precision:

Min0.001

Head Shape:

Customized

Compatibility:

Universal For Standard Draft Beer Systems

Material Grade:

1045

Components Included:

Tap Faucet, Beer Shank, Coupler, Regulator, Beer Line, Gas Line, Clamps, Drip Tray, Keg Coupler

Length:

6 Inches

Usage:

For Home Or Commercial Draft Beer Dispensing

Packing:

Carton

Durability:

Yes

Origin:

China

Size:

10.0-30.0mm

Highlight:

Connector Hardware

CNC Hardware

Precision Hardware

Payment & Shipping Terms

Minimum Order Quantity

1PCS

Price

5-10 USD per item

Packaging Details

Communication

Delivery Time

Communication

Payment Terms

T/T

Supply Ability

10000PCS per day

Product Description

Black Zinc Plated Hexagonal Nuts for Draft Beer Mechanical Parts

Precision CNC machined hex nuts specifically designed for brewing and dispensing equipment, featuring black zinc plating for enhanced corrosion resistance and professional appearance.

Applications in Beer Machine Components

Machined hex nuts serve as core connecting components in beer machines, providing structural fastening, sealing assurance, and positioning installation while balancing strength, hygiene, and corrosion resistance.

Tap/Dispense Tower Assembly: Fixes tap to tower and adjusts outlet direction with gaskets for sealing
Pipeline and Valve System: Fastens sanitary pipe flanges and valve bodies, withstands beer pressure and vibration
Tank and Frame: Secures nozzles, legs, and internal components of fermentation tanks
Coupler and Gas Circuit: Locks CO₂ inlet nozzles and beer check valves, prevents gas leakage

Technical Specifications

Dimension	Core Requirements	Selection & Processing Points
Material & Corrosion Resistance	Food-grade corrosion resistance	316L stainless steel (chloride-ion pitting resistance), 304 for general applications, 904L for highly corrosive conditions
Structure & Precision	Reliable sealing, easy assembly	Hexagonal shape, thread precision 6H/5H, anti-gall design with flat washers/locking parts
Hygiene & Compliance	No residue, easy to clean	Surface roughness Ra ≤ 0.8 μm, compliant with FDA/GB 4806 food contact standards
Mechanical Properties	Vibration resistance, pressure resistance	Property class A2-70 (tensile strength ≥ 700 MPa), thick or locking nuts for high-vibration applications
Standard & Compatibility	Interchangeability, compatibility	GB/T 6170 (Type 1), GB/T 6175 (Type 2), sizes M6-M24

Processing & Application Guidelines

Processing Control: Precision thread turning, deburring, heat treatment to prevent hydrogen embrittlement
Installation Specification: Clean threads, diagonal step-by-step tightening, specified torque application
Maintenance & Corrosion Protection: Regular inspection, timely replacement, passivation for high-humidity environments

Selection Guide

Small/Household Dispensing Equipment: 304 stainless steel A2-70, GB/T 6170, M6-M12 with EPDM gaskets
Commercial Brewing/High-Pressure Pipeline: 316L stainless steel A2-70/A4-80, GB/T 6175, M10-M20 locking design
High Corrosion/Frequent Cleaning: 316L or 904L, Ra ≤ 0.8 μm, electropolished, EHEDG/3A compliant

Manufacturing Capabilities

Advanced Japanese and German CNC equipment including 5-axis and 6-axis machines, maximum processing outer diameter 60mm, minimum control tolerance 0.001mm.

Main Products:

Stainless steel screws, carbon steel screws, pins, rivets, nuts, eccentric nails, embedded parts, fasteners

Services:

CNC Machining, Turning and Milling, CNC Turning, Cold heading, Stamping, Assembly

Materials:

Aluminum, Stainless Steel, Steel, Alloy Steel, Titanium, Brass, Copper, Bronze, Magnesium, Plastics

Finishes:

Sandblasting, Anodizing, Blackening, Zinc/Nickel Plating, Polishing, Powder Coating, Passivation, PVD, Electroplating

Tolerance:

±0.01mm to ±0.05mm

Surface Roughness:

Ra 0.1~3.2

Quality Assurance

300 employees including 20 technicians, 10 engineers, and 15 quality control personnel. 8S management system with ISO9001 and TS16949 automotive certifications. Complete inspection lab with advanced measurement equipment.

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