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Home Product M8*50 Half Thread External Hex Bolt, High-Strength Partial Thread Hex Head Screw for Construction Machinery
Half thread external hexagonal bolt M8*50

M8*50 Half Thread External Hex Bolt, High-Strength Partial Thread Hex Head Screw for Construction Machinery

M8x50 half thread bolt
External hex head bolt M8x50
Half-threaded hexagonal bolt M8
Half thread external hexagonal bolt M8*50
M8x50 half thread bolt with external hex head design. Partial threading on shank, hexagonal head for tool engagement. Durable half-threaded hexagonal bolt M8x50, suitable for mechanical assemblies requiring external hex drive.
Categories:Fasteners & Fixings
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Product Description

The M8x50 half thread bolt is a high-strength External hex head bolt M8x50 designed for applications requiring partial threading and robust fastening. This Half-threaded hexagonal bolt M8 features a 30 mm threaded section and 20 mm unthreaded shank, made from grade 8.8 steel with zinc plating for corrosion resistance. The external hex head (13 mm across flats) requires a 13 mm wrench for installation. Suitable for temperatures -50°C to +150°C, it offers 800 MPa tensile strength and 640 MPa proof load. Primarily used in machinery assembly, structural engineering, and automotive manufacturing, its partial threading allows adjustable clamping while maintaining shear resistance. Advantages include vibration resistance and precise torque application, though requires proper alignment during installation. Compatible with standard M8 nuts and ISO 4014 specifications.
Parameter Specification
Product Designation M8x50 Half Thread External Hexagonal Bolt
Thread Type Metric (ISO 724)
Nominal Diameter M8 (8mm)
Total Length 50mm ±0.5mm
Threaded Length 25mm ±1mm (50% of total length)
Head Type External Hexagonal (DIN 931)
Head Height 5.3mm
Hexagon Size 13mm (AF)
Thread Pitch 1.25mm
Unthreaded Shank 25mm smooth cylindrical section
Material Grade Class 8.8 (BS EN 20898)
Surface Finish Plain, Zinc Plated, or customer specification
question:Can the company provide upgraded or alternative models?
answer:Yes, we offer various upgraded and alternative models based on your requirements.
question:Can the company ensure stable supply?
answer:Yes, we maintain stable supply through reliable production and logistics.
question:Do you provide technical selection services?
answer:Yes, we offer professional technical selection support to optimize your product choices.
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 the company provide upgraded or alternative models?
answer:Yes, we offer various upgraded and alternative models based on your requirements.
question:Can the company ensure stable supply?
answer:Yes, we maintain stable supply through reliable production and logistics.
question:Do you provide technical selection services?
answer:Yes, we offer professional technical selection support to optimize your product choices.
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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