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Home > Products > Metal Bolt > High Quality Carbon Steel Grade Class 4.8 8.8 10.9 Black Oxide Metal Bolt T-Slot T Head Bolts

High Quality Carbon Steel Grade Class 4.8 8.8 10.9 Black Oxide Metal Bolt T-Slot T Head Bolts

Product Details

Place of Origin: China

Brand Name: JIASHAN

Certification: ISO9001:2008,SGS,RoHS

Model Number: customized

Payment & Shipping Terms

Minimum Order Quantity: 10 pcs

Price: 0.01~0.11 USD

Packaging Details: *Packing:Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film.

Delivery Time: 5-15 work days

Payment Terms: L/C, D/A, D/P, T/T, Western Union

Supply Ability: 10000 PCS

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Highlight:

carbon steel T-slot bolts

,

black oxide metal bolts

,

grade 10.9 T-head bolts

Used:
Building Industry Machinery
Function:
Connection,Fastening And Decoration
Package Quantity:
100 Pieces
Application:
Construction, Automotive, Machinery
Payment Term:
L/C,T/T,Westerin Union
Strength:
High
Usage:
Mechanical Fastening
Sample:
Available
Productname:
Metal Bolt
Material:
Carbon Steel
Compatibility:
Universal
Used:
Building Industry Machinery
Function:
Connection,Fastening And Decoration
Package Quantity:
100 Pieces
Application:
Construction, Automotive, Machinery
Payment Term:
L/C,T/T,Westerin Union
Strength:
High
Usage:
Mechanical Fastening
Sample:
Available
Productname:
Metal Bolt
Material:
Carbon Steel
Compatibility:
Universal
High Quality Carbon Steel Grade Class 4.8 8.8 10.9 Black Oxide Metal Bolt T-Slot T Head Bolts
High Quality Carbon Steel Grade Class 4.8 8.8 10.9 Black Oxide Metal Bolt T-Slot T Head Bolts
High Quality Carbon Steel Grade Class 4.8 8.8 10.9 Black Oxide Metal Bolt T-Slot T Head Bolts 0
Product Specifications
Name Metal Bolt
Standard DIN, ASME, ANSI, ISO
Material carbon steel
Place of Origin China
Finish Polish, Passivation, Black, Galvanization, Chromate, Dacromet
Certificate ISO9001:2008, ROHS
Used Building Industry Machinery
Thread Type Coarse, Fine
Usage Fastening
Function Connection, Fastening and Decoration
Strength High
Size Various sizes available
Measurement System INCH, Metric system
Product Description

Square head bolts (also referred to as square - headed screws) are essential fasteners in numerous industries and construction endeavors. They are distinguished by their square - shaped heads, which offer several advantages. When it comes to material, they can be manufactured from a variety of metals, with stainless steel (e.g., 18 - 8 (A2), A4, SUS304, SUS316, SUS316L) being a well - liked choice. This stainless - steel material provides excellent corrosion resistance, making them appropriate for applications in harsh environments such as marine or chemical plants. For example, in coastal areas where saltwater is common, stainless - steel square head bolts can withstand the corrosive impacts and keep their integrity over an extended period. The square - head design has practical benefits: it enables easy manual tightening or loosening using a wrench or socket. Unlike some round - headed bolts that might slip under torque, the flat surface of the square head provides a stable grip. This makes installation and maintenance more convenient, particularly in situations where power tools may not be easily accessible or in confined spaces. Square head bolts are available in different sizes (e.g., M2, M8, M12, M16) and have different strength ratings (e.g., A2 - 70, A2 - 80, A4 - 70, A4 - 80). High - strength fasteners like these are frequently used in structural applications, such as building frameworks or heavy - machinery assembly, ensuring the stability and safety of the structure.

Applications
  • Industrial Machinery Assembly: Used to connect heavy-duty components (e.g., gearboxes, engine blocks) in manufacturing equipment, ensuring stable load distribution during operation.
  • Construction Engineering: Secures structural elements like steel beams, columns, and prefabricated panels in buildings, bridges, and infrastructure projects.
  • Automotive & Aerospace: Joins critical parts (e.g., chassis frames, engine mounts, aircraft fuselage sections) where high strength and vibration resistance are required.
  • Power Generation Equipment: Fixes turbine components, generator casings, and transmission systems in thermal, hydro, or wind power plants.
  • Heavy-Duty Furniture & Fixtures: Assembles robust furniture (e.g., industrial workbenches, storage racks) and fixtures (e.g., machine tool bases) needing durable, long-term connections.
Material Specifications
Aluminum Excellent thermal/electrical conductivity but naturally soft. May produce gelatinous buildup during processing.
Titanium EDM machining recommended. Requires deionized water to control heat during processing.
Steel Very strong metal. Wire cutting machines often preferred for complex features. Requires heat management.
Brass High tensile strength, easy to machine but requires slow cutting speed due to softness.
Features & Advantages
  • Medium carbon steel construction: Offers balanced strength (typically 4.8–12.9 grade) and toughness, suitable for moderate to high-load applications.
  • Reusable & cost-effective: Can be removed and reinstalled multiple times without significant loss of performance, reducing long-term maintenance costs.
  • Gasket-free compatibility: Directly interfaces with mating surfaces or nuts, eliminating the need for additional gaskets while maintaining sealing integrity.
  • High-strength bolt compatibility: Works seamlessly with Class 8.8 and 10.9 high-strength bolts, enhancing overall joint reliability under dynamic or static loads.
  • Durable wholeness: Manufactured with precision threading and surface treatments (e.g., zinc plating, black oxide) for corrosion resistance and extended service life.
Product Images
Frequently Asked Questions
Q: Are you trading company or manufacturer?

A: We are factory and OEM are available.

Q: How long is your delivery time?

A: Generally 7-10 days if in stock, or 15-20 days if not in stock (depending on quantity).

Q: Do you provide samples? Is it free or extra?

A: Yes, we offer free samples but customer pays freight cost.

Q: What are your payment terms?

A: 30% T/T in advance, balance before shipment or L/C.