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Round Head Positioning Black Semi Threaded M4 Machine Screws

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Round Head Positioning Black Semi Threaded M4 Machine Screws

Name: Round Head Positioning Black Semi Threaded M4 Machine Screws
Brand: SITUO
Price: 5 USD

Wholesale Round Head Positioning Black Semi Threaded M4 Machine Screws from china suppliers

Brand Name : SITUO

Model Number : ST-60002

Certification : ISO9001 & TS16949

Place of Origin : GuangDong Dongguan

MOQ : 1PCS

Price : 5-10USD per item

Payment Terms : T/T

Supply Ability : 10000PCS per day

Delivery Time : Communication

Packaging Details : Communication

Material : AISI 1215/Y15

Category : Tool pin

Surface treatment : electrophoresis

Processing technology : CNC turning

Sample period : 10 to 15 days

Precision : Min0.001

head shape : Customized

Country Of Origin : China

Durability : High

Working Type : cutting off

Packing : color box and carton

Corrosion Resistance : Yes

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Round head positioning screws, adjusting tool screws, black semi-threaded M4 machine screws

Tool Sets and Accessories (Core Categories: Tool Storage, Auxiliary Accessories, Combination Tools)

1. Specific Categories and Application Scenarios

These tools serve as supplements to the above 10 major tool categories, with core functions of storage & organization, auxiliary usage, and combination & adaptation. Their key requirements are high versatility, high strength, rust resistance, and high assembly precision.

They specifically include:

Tool Sets: Household maintenance sets, industrial assembly sets, automotive repair sets, electrician tool sets, etc.
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.

Application scenarios cover all tool usage environments. Whether in households, factories, or repair workshops, tool sets and accessories are essential to improve tool efficiency, facilitate storage and organization, and achieve multi-functional adaptation (e.g., extending socket application range via adapters).

2. Key Material Selection Considerations

The core demands for tool sets and accessories are versatility, strength, rust resistance, and assembly precision. Material selection shall focus on strong compatibility, durability, and easy storage, with emphasis on the following four aspects:

Material Selection

Storage tool casings prefer ABS engineering plastic and cold-rolled steel sheet. Tool accessories mainly use carbon steel, stainless steel, and chrome-vanadium steel. Auxiliary tools adopt functionally suitable 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 (e.g., calibrators): require high-precision, high-stability materials.
Versatility and Compatibility

Tool accessories shall be highly versatile, compatible with tools of different brands and specifications. Tool set configurations shall be reasonable to meet scenario-specific demands. Storage tools shall be designed based on tool size and quantity for neat storage and easy access.
Strength and Durability

Tool accessories (adapters, drill chucks, etc.) must have sufficient strength to avoid fracture or deformation during use. Storage tool casings shall be impact-resistant and wear-resistant. Tool pegboards and carts shall feature sturdy structures to bear tool weight without deformation or detachment.
Rust Prevention and Appearance

Tool accessories shall undergo rust-proof treatment (chrome plating, blackening, etc.). Storage tools shall have a clean, attractive appearance with uniform surface finishing, no scratches or burrs. Tool set packaging shall be sturdy for transportation and storage.

3. Our Advantages in Processing and Assembly

We are capable of manufacturing all individual components for tool sets and accessories, including toolbox casings, tool pegboards, socket adapters, bits, drill chucks, etc.

We are equipped with stamping, machining, injection molding, and surface treatment capabilities to guarantee versatility, strength, and rust resistance of parts.

Customize various tool sets according to customer requirements: household sets, industrial sets, foreign trade OEM sets.
Provide tool assembly, storage, and packaging services.
Support OEM production, with customizable set configurations, storage tool designs, and packaging.
Offer one-stop service from parts processing, tool matching, and assembly to finished product delivery.
Develop matching auxiliary accessories to enhance product added value.

We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.

Our maximum processing outer diameter is 60, and the minimum control tolerance is 0.001. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, which can effectively provide customers with the best technical solutions.

Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.

Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.

Our customers include , bo-sch, Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.

OUR CAPACITY
Main product names:	Stainless steel screws, carbon steel screws, pins, rivets, nuts,
	eccentric nails, embedded parts, and other fasteners.
Business Type	Factory / Maufacture
Service	CNC Machining
	Turning and Milling
	CNC Turning
	Cold heading
	stamping
	Assembly Service
Material	1). Aluminum: AL 6061-T6, 6063, 7075-T etc
	2). Stainless steel:303,304,304L,316L,316F,630,410,420,430, etc
	3). Steel: 4140, Q235, Q345B,20#,45# 1215,12L14 ,1144,1006,1008,1010,1015,1018 ,10B21,1035,1065 etc.
	4)Alloy steel:5140,4135,4140,3435,5120,415 ,435,440 etc
	5). Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc
	6). Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90),C27000,C51900,C11000,C3604,H62,H65 etc
	7). Copper, bronze, Magnesium alloy, Delrin, POM,Acrylic, PC, etc.
Finish	Sandblasting, Anodize color, Blackenning, Zinc/Nickl 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

Round Head Positioning Black Semi Threaded M4 Machine Screws

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