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Home Product M12x40 Metric External Hex Bolt DIN 933 A2-70 Stainless Steel Fastener
Metric external hexagonal bolts M12*40

M12x40 Metric External Hex Bolt DIN 933 A2-70 Stainless Steel Fastener

M12x40 hex bolt
Metric hex cap screws DIN 933
External hex head bolt M12-40
Metric external hexagonal bolts M12*40
M12x40 hex bolt, Metric hex cap screws DIN 933, External hex head bolt M12-40. Carbon steel grade 8.8 with zinc-plated finish. Fully threaded metric external hexagonal bolts for industrial applications.
Categories:Fasteners & Fixings
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Product Description

The M12x40 hex bolt, conforming to Metric hex cap screws DIN 933 standard, is a fully threaded External hex head bolt M12-40 designed for robust industrial fastening. With a nominal diameter of 12mm, 40mm length, and 19mm hexagonal head width, it features ISO metric coarse threading (1.75mm pitch). Manufactured from grade 8.8 carbon steel with optional zinc-plated or hot-dip galvanized finishes, it withstands tensile strengths up to 800 MPa. Suitable for environments ranging from -30°C to +120°C, this bolt offers high shear resistance and torque capacity (recommended tightening torque: 93 Nm). Commonly used in machinery assembly, structural frameworks, and automotive applications, its external hex design enables secure wrench engagement but requires adequate clearance space. While corrosion-resistant variants exist, non-coated models may require supplementary protection in harsh conditions.
ParameterSpecification
Thread SizeM12x40
StandardDIN 933 / ISO 4017
Head StyleExternal Hex Head
MaterialStainless Steel A2-70 / Carbon Steel 8.8
Surface TreatmentZinc-plated, Hot-dip galvanized, or Plain
Tensile Strength700 MPa (A2-70) / 800 MPa (8.8)
Proof Load450 MPa (A2-70) / 640 MPa (8.8)
Thread Pitch1.75 mm (Coarse)
Thread TypeFull Thread
Drive Size19 mm Hex
Head Height7.5 mm
Thread Tolerance6g
Length Tolerance±1.0 mm
Corrosion ResistanceHigh (A2) / Moderate (Carbon Steel)
Temperature Range-50°C to +250°C (A2)
question:How do you handle shipping?
answer:We support DHL, Fedex, UPS, and other major shipping methods. Contact us for details.
question:Can you provide upgraded or alternative models?
answer:Yes, upgraded or alternative models are available. Discuss requirements with our team for options.
question:Can you ensure stable product supply?
answer:Yes, we guarantee stable supply via reliable partnerships and efficient inventory management.
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 do you handle shipping?
answer:We support DHL, Fedex, UPS, and other major shipping methods. Contact us for details.
question:Can you provide upgraded or alternative models?
answer:Yes, upgraded or alternative models are available. Discuss requirements with our team for options.
question:Can you ensure stable product supply?
answer:Yes, we guarantee stable supply via reliable partnerships and efficient inventory management.
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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