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Home Product M4*20*1.2 Hex Bolt, High-Strength Stainless Steel Fastener for Machinery Construction
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M4*20*1.2 Hex Bolt, High-Strength Stainless Steel Fastener for Machinery Construction

M4 screw
M4-1.2 bolt
20mm fastener
M4*20*1.2
M4 screw with 20mm length and 1.2mm thread pitch, zinc alloy M4-1.2 bolt for precision fastening applications. This 20mm fastener features hex head design, corrosion-resistant nickel plating, compatible with standard M4 nuts. Ideal for mechanical assembly, electronics, DIY projects, and industrial equipment installation requiring secure thread engagement.
Categories:Fasteners & Fixings
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Product Description

The M4*20*1.2 is a precision-engineered fastener featuring an M4 screw thread with a 1.2mm pitch and a 20mm shank length. Designed for industrial applications such as machinery assembly, automotive systems, and electronics enclosures, this M4-1.2 bolt ensures secure, vibration-resistant connections. Its corrosion-resistant steel construction allows operation in temperatures ranging from -30°C to 150°C, suitable for harsh environments. The 20mm fastener provides optimal grip depth for medium-duty fixtures while maintaining compact dimensions. Key advantages include high tensile strength, compatibility with standard M4 nuts, and ease of installation using standard hex tools. Potential limitations include reduced performance in extreme thermal cycling scenarios. Ideal for applications requiring reliable mechanical anchoring without auxiliary components, this bolt eliminates the need for supplementary adhesives or welding.
ParameterSpecification
Thread DesignationM4 screw (ISO 898-1)
Major Diameter4.0mm
Thread Pitch1.2mm
Shank Length20mm fastener
Thread LengthFull thread M4-1.2 bolt
Head StyleHexagonal
Material GradeClass 8.8 carbon steel
Surface FinishZinc-plated
Drive TypeHex socket (ISO 4762)
Tensile Strength800 MPa min
Proof Load580 MPa
Temperature Range-50°C to 120°C
question:How is after-sales service handled if a refurbished product malfunctions?
answer:We offer replacement or refund for verified refurbished products under warranty, ensuring compliance with our terms.
question:Why was the product received with the brand label removed?
answer:Labels are removed per distribution agreements or regional regulations. Product authenticity and functionality remain unaffected.
question:Can shipments be declared with low value for customs?
answer:Declaration values align with destination country regulations. Contact us to discuss compliant options based on your needs.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:How is after-sales service handled if a refurbished product malfunctions?
answer:We offer replacement or refund for verified refurbished products under warranty, ensuring compliance with our terms.
question:Why was the product received with the brand label removed?
answer:Labels are removed per distribution agreements or regional regulations. Product authenticity and functionality remain unaffected.
question:Can shipments be declared with low value for customs?
answer:Declaration values align with destination country regulations. Contact us to discuss compliant options based on your needs.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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