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Home Product M12*65 Half Thread External Hex Bolt | Partial Thread Hex Screw | High Tensile Steel, Zinc Plated | for Construction Machinery, Vehicle Assembly
Half thread external hexagonal bolt M12*65

M12*65 Half Thread External Hex Bolt | Partial Thread Hex Screw | High Tensile Steel, Zinc Plated | for Construction Machinery, Vehicle Assembly

Half thread hex bolt M12x65
External hex bolt M12x65
M12x65 half threaded bolt
Half thread external hexagonal bolt M12*65
Half thread hex bolt M12x65 with external hex head, partially threaded design for versatile applications in machinery, construction, automotive and industrial equipment. External hex bolt M12x65 combines full shank strength with threaded section. M12x65 half threaded bolt offers dual functionality for secure fastening where partial threading is required. Durable steel material meets standard specifications.
Categories:Fasteners & Fixings
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Product Description

The Half thread hex bolt M12x65, also known as the External hex bolt M12x65 or M12x65 half threaded bolt, is a precision-engineered fastener designed for robust mechanical connections. Featuring a 12mm diameter and 65mm total length, it combines a partially threaded shank for adjustable grip with a hexagonal head for standard wrench compatibility. Constructed from high-tensile carbon steel (grade 8.8 or higher) with optional coatings like zinc plating or hot-dip galvanizing, it operates reliably in temperatures ranging from -50°C to +250°C. Ideal for machinery, automotive assemblies, and structural applications, this bolt excels in scenarios requiring vibration resistance and load distribution. Its partial threading reduces material stress while maintaining alignment accuracy. However, the design may limit torque transfer in fully threaded applications. Compliant with ISO 4014/4017 standards, it ensures durability in industrial environments requiring corrosion resistance and mechanical stability.
Parameter Specification
Product Model Half thread hex bolt M12x65, External hex bolt M12x65, M12x65 half threaded bolt
Thread Length 30 mm
Shank Length 35 mm
Overall Length 65 mm
Head Type External Hexagonal
Hex Size 19 mm
Material Grade Grade 8.8
Surface Treatment Zinc Plated
Thread Type Metric Coarse
Standards Compliance ISO 4014, DIN 933
Tensile Strength 800 MPa
Yield Strength 640 MPa
Hardness HRC 22-32
Coating Thickness 5-8 µm
Thread Pitch 1.75 mm
Thread Diameter M12
Thread Direction Right-hand
Temperature Resistance -50°C to 120°C
Corrosion Resistance Class 3 (ISO 4042)
question:Can your company provide stable supply?
answer:Yes, we maintain reliable supply chains and sufficient production capacity to ensure consistent and timely deliveries.
question:How is after-sales handled if a purchased product is faulty and found refurbished?
answer:Free replacement or full refund provided immediately. We rigorously inspect all products to prevent refurbished items.
question:What shipping methods do you support?
answer:We support DHL, FedEx, UPS, and other major carriers. Shipping options and costs are customized per order and destination.
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:Can your company provide stable supply?
answer:Yes, we maintain reliable supply chains and sufficient production capacity to ensure consistent and timely deliveries.
question:How is after-sales handled if a purchased product is faulty and found refurbished?
answer:Free replacement or full refund provided immediately. We rigorously inspect all products to prevent refurbished items.
question:What shipping methods do you support?
answer:We support DHL, FedEx, UPS, and other major carriers. Shipping options and costs are customized per order and destination.
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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