China Round Head Positioning Black Semi Threaded M4 Machine Screws for sale
China Round Head Positioning Black Semi Threaded M4 Machine Screws for sale
China Round Head Positioning Black Semi Threaded M4 Machine Screws for sale
China Round Head Positioning Black Semi Threaded M4 Machine Screws for sale

Round Head Positioning Black Semi Threaded M4 Machine Screws

Round Head Positioning Black Semi Threaded M4 Machine Screws Round head positioning screws, adjusting tool screws, black semi-threaded M4 machine screws Tool Sets and Accessories Overview These tools serve as supplements to major tool categories, with core functions of storage & organization, auxiliary usage, and combination & adaptation. Their key requirements are high versatility, strength, rust resistance, and assembly precision. Tool Sets: Household maintenance sets,

Corrosion Resistance Yes
Place of Origin GuangDong Dongguan
Category Tool pin
Packaging Details Communication
Working Type cutting off
Country Of Origin China
Product Description
Round Head Positioning Black Semi Threaded M4 Machine Screws
Round head positioning screws, adjusting tool screws, black semi-threaded M4 machine screws
Tool Sets and Accessories Overview

These tools serve as supplements to major tool categories, with core functions of storage & organization, auxiliary usage, and combination & adaptation. Their key requirements are high versatility, strength, rust resistance, and assembly precision.

  • Tool Sets: Household maintenance sets, industrial assembly sets, automotive repair sets, electrician tool sets
  • Storage Tools: Combination toolboxes, tool carts, tool pegboards, tool bags
  • Tool Accessories: Socket accessories, wrench adapters, drill chucks, screwdriver bits, saw blade accessories
  • Auxiliary Tools: Tool holders, torque wrench calibrators, edge sharpening tools
Material Selection Considerations
Primary Materials
  • ABS Engineering Plastic: Lightweight, impact-resistant, waterproof - ideal for toolboxes and tool bags
  • Cold-Rolled Steel Sheet: High rigidity, wear-resistant - suitable for tool carts and pegboards
  • Carbon Steel, Stainless Steel, Chrome-Vanadium Steel: Ensure strength and wear resistance for tool accessories
  • Auxiliary Tools: Require high-precision, high-stability materials for calibrators and precision instruments
Key Performance Factors
  • Versatility and Compatibility: Highly versatile accessories compatible with different brands and specifications
  • Strength and Durability: Sufficient strength to avoid fracture or deformation during use
  • Rust Prevention: Chrome plating, blackening, and other rust-proof treatments
  • Appearance Quality: Clean, attractive appearance with uniform surface finishing
Manufacturing Capabilities

We manufacture all individual components for tool sets and accessories, including toolbox casings, tool pegboards, socket adapters, bits, drill chucks, and more.

Our Services
  • Custom tool sets: household, industrial, foreign trade OEM sets
  • Complete tool assembly, storage, and packaging services
  • OEM production with customizable configurations and designs
  • One-stop service from parts processing to finished product delivery
  • Development of matching auxiliary accessories
Advanced Equipment
  • Japanese CNC Tsugami and CNC Citizen machines
  • Multi-station cold extrusion forming machines
  • 500T press machines and casting equipment
  • Maximum processing outer diameter: 60mm
  • Minimum control tolerance: 0.001mm
Quality Assurance
  • 300 employees including 20 technicians, 10 engineers, and 15 quality control personnel
  • Over 300 pieces of equipment
  • 8S management system implementation
  • ISO9001 and TS16949 automotive certifications
OUR CAPACITY
Main Products Stainless steel screws, carbon steel screws, pins, rivets, nuts, eccentric nails, embedded parts, and other fasteners
Business Type Factory / Manufacturer
Services CNC Machining, Turning and Milling, CNC Turning, Cold heading, Stamping, Assembly Service
Materials Aluminum: AL 6061-T6, 6063, 7075-T etc
Stainless steel: 303,304,304L,316L,316F,630,410,420,430, etc
Steel: 4140, Q235, Q345B,20#,45# 1215,12L14,1144,1006,1008,1010,1015,1018,10B21,1035,1065 etc
Alloy steel: 5140,4135,4140,3435,5120,415,435,440 etc
Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc
Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90),C27000,C51900,C11000,C3604,H62,H65 etc
Copper, bronze, Magnesium alloy, Delrin, POM, Acrylic, PC, etc.
Finishes Sandblasting, Anodize color, Blackening, Zinc/Nickel Plating, Polish, Power coating, Passivation PVD, Titanium Plating, Electrogalvanizing, electroplating chromium, electrophoresis, QPQ(Quench-Polish-Quench), Electro Polishing, Chrome Plating, Knurl, Laser etch Logo, etc.
Drawing Format STEP, STP, GIS, CAD, PDF, DWG, DXF etc or samples
Tolerance +/-0.01mm ~ +/-0.05mm
Surface Roughness Ra 0.1~3.2
Inspection Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier, CMM, Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge
Product Gallery

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