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Product Information
Key Specifications/ Special Features
Product Overview
Our Grade 12.9 Hexagon Socket Round Head Shoulder Bolt is a precision engineered fastener designed for critical mechanical connections requiring exceptional strength, dimensional accuracy, and reliable positioning. Combining a robust 12.9-grade alloy steel construction with a versatile hexagon socket drive and functional shoulder design, this bolt delivers superior performance in demanding industrial, automotive, and machinery applications.
Forged from premium 12.9-grade alloy steel, this bolt boasts a tensile strength of up to 1,220 MPa and a yield strength of 1,100 MPa, ensuring it withstands heavy loads, shock, and vibration without deformation or failure. Ideal for static or dynamic stress prone environments.
The precision machined cylindrical shoulder acts as a built in locator, preventing over insertion and ensuring accurate alignment between components. It also distributes clamping forces evenly, reducing wear on mating parts and enhancing joint stability.
The recessed hexagon socket drive (Allen compatible) allows for high torque application with standard Allen wrenches, minimizing the risk of rounding the head during tightening. The low profile round head sits flush or blends seamlessly with surfaces, ideal for aesthetic or space constrained designs.
Surface treated with zinc plating or black oxide (optional), the bolt resists rust, oxidation, and environmental wear, extending service life in humid, chemical, or outdoor conditions.
Factory Display
Shipping
FAQ
A: Established in 1993, we’re headquartered in Baiye Hardware & Electronics City (Guangdong’s largest market), with 30 years of fastener expertise.
A: Branches in Dongguan, Shenzhen, Changsha, and Jilin. Core markets: Guangdong, Hunan, Jilin; serve nationwide via our network.
A: Machinery, mold-making, construction, automotive, and electronics—perfect for high-strength/corrosion-resistant needs.
A: ISO 9001 certified. We do strict incoming inspections and 100% final checks before shipment.
A: Quote within 24 hours after receiving your requirements.
Product Overview
Our Grade 12.9 Hexagon Socket Round Head Shoulder Bolt is a precision engineered fastener designed for critical mechanical connections requiring exceptional strength, dimensional accuracy, and reliable positioning. Combining a robust 12.9-grade alloy steel construction with a versatile hexagon socket drive and functional shoulder design, this bolt delivers superior performance in demanding industrial, automotive, and machinery applications.
Forged from premium 12.9-grade alloy steel, this bolt boasts a tensile strength of up to 1,220 MPa and a yield strength of 1,100 MPa, ensuring it withstands heavy loads, shock, and vibration without deformation or failure. Ideal for static or dynamic stress prone environments.
The precision machined cylindrical shoulder acts as a built in locator, preventing over insertion and ensuring accurate alignment between components. It also distributes clamping forces evenly, reducing wear on mating parts and enhancing joint stability.
The recessed hexagon socket drive (Allen compatible) allows for high torque application with standard Allen wrenches, minimizing the risk of rounding the head during tightening. The low profile round head sits flush or blends seamlessly with surfaces, ideal for aesthetic or space constrained designs.
Surface treated with zinc plating or black oxide (optional), the bolt resists rust, oxidation, and environmental wear, extending service life in humid, chemical, or outdoor conditions.
Factory Display
Shipping
FAQ
A: Established in 1993, we’re headquartered in Baiye Hardware & Electronics City (Guangdong’s largest market), with 30 years of fastener expertise.
A: Branches in Dongguan, Shenzhen, Changsha, and Jilin. Core markets: Guangdong, Hunan, Jilin; serve nationwide via our network.
A: Machinery, mold-making, construction, automotive, and electronics—perfect for high-strength/corrosion-resistant needs.
A: ISO 9001 certified. We do strict incoming inspections and 100% final checks before shipment.
A: Quote within 24 hours after receiving your requirements.
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