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Home Product M8*45 Half Thread Hex Bolt, External Hexagon Head Screw, DIN 931 Fastener Hardware
Half thread external hexagonal bolt M8*45

M8*45 Half Thread Hex Bolt, External Hexagon Head Screw, DIN 931 Fastener Hardware

M8-45 hex bolt
Half thread hex bolt
External hex head bolt
Half thread external hexagonal bolt M8*45
M8-45 hex bolt, external hex head bolt with half thread hex bolt design. Made of stainless steel, suitable for applications requiring partial threading and durable hexagonal head. Ideal for mechanical, construction, and industrial assembly, ensuring stable and secure fastening. Complies with standard specifications.
Categories:Fasteners & Fixings
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Product Description

The M8-45 hex bolt is a half thread hex bolt featuring an external hex head for tool engagement, designed with an 8mm nominal diameter and 45mm total length. Its partial threading provides optimized load distribution and joint stability, ideal for applications requiring controlled clamping force. Typically made from grade 8.8 carbon steel or A2/A4 stainless steel, it offers tensile strengths up to 800 MPa and corrosion resistance through coatings like zinc plating. The external hex head bolt accommodates standard wrench sizes (13mm across flats) and supports torque ranges of 15-25 Nm for secure assembly. Operating in temperatures from -20°C to +120°C, it is widely used in automotive, machinery, and structural frameworks. Advantages include high shear resistance and easy installation, while the half thread design limits full-length gripping capability in deep-material applications. Pre-drilled holes must match the unthreaded shank diameter to ensure proper alignment.
Parameter Specification
Bolt Type M8-45 hex bolt / Half thread hex bolt
Thread Specification M8×45
Full Shank Diameter 8 mm
Thread Length 22 mm (approx.)
Head Style External hex head bolt
Thread Standard ISO 4017/DIN 933
Material Grade Class 8.8 Steel
Surface Treatment Zinc-plated
Hex Head Width 13 mm
Hex Head Height 5.3 mm
Proof Load 800 MPa
Thread Pitch 1.25 mm
Thread Tolerance 6g
question:Can shipments apply for low-value declaration?
answer:Low-value declaration eligibility depends on destination regulations. We assist with documentation but cannot guarantee tax exemptions.
question:How is售后 handled if故障 reveals refurbished units?
answer:Refurbished units void product warranties. We offer support to contact the original supplier for resolution assistance.
question:Why can other suppliers source discontinued models we can't?
answer:Suppliers may access remaining stock or non-authorized channels. We prioritize verified partnerships and compliance.
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 shipments apply for low-value declaration?
answer:Low-value declaration eligibility depends on destination regulations. We assist with documentation but cannot guarantee tax exemptions.
question:How is售后 handled if故障 reveals refurbished units?
answer:Refurbished units void product warranties. We offer support to contact the original supplier for resolution assistance.
question:Why can other suppliers source discontinued models we can't?
answer:Suppliers may access remaining stock or non-authorized channels. We prioritize verified partnerships and compliance.
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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