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Home Product M12x45 Metric External Hex Bolts, DIN 931, High Tensile Steel 8.8, Zinc Plated Fasteners
Metric external hexagonal bolts M12*45

M12x45 Metric External Hex Bolts, DIN 931, High Tensile Steel 8.8, Zinc Plated Fasteners

M12*45 hex bolt
Metric external hex bolts
DIN 931 M12 bolt
Metric external hexagonal bolts M12*45
M12*45 Hex Bolt - DIN 931 compliant metric external hex bolts with precision threads, high-strength steel construction, and full threading for industrial machinery and structural fastening applications.
Categories:Fasteners & Fixings
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Product Description

The M12*45 hex bolt is a Metric external hex bolt designed to DIN 931 M12 bolt standards, featuring a 45mm length and 12mm nominal diameter. This full-threaded fastener integrates a 19mm external hexagonal head with an 8mm wrenching height. It operates under ISO 4014 specifications, offering 800 MPa tensile strength and 640 MPa yield strength. Typical applications include heavy machinery, automotive assemblies, and structural steel frameworks where high shear resistance and vibration tolerance are critical. Its zinc-plated surface provides moderate corrosion protection for indoor environments. Limitations involve restricted use in confined spaces due to the bolt's size and reduced chemical resistance in highly corrosive settings. Operating temperature ranges from -20°C to +120°C.
Parameter Specification
Product Model Metric external hex bolts (DIN 931 M12*45)
Thread Size M12 (12mm nominal diameter)
Thread Pitch 1.75mm (coarse thread per ISO 724)
Length (L) 45mm (underhead to tip)
Head Style External hexagonal head (ISO 4014)
Head Height 7.5mm (DIN 931 standard)
Material Carbon steel grade 8.8 / Stainless steel A2-70
Surface Finish Zinc-plated (5-8μm) / Plain / Hot-dip galvanized
Tensile Strength 800 MPa (grade 8.8) / 700 MPa (A2-70)
Standards Compliance DIN 931, ISO 4014, EN 24016
Wrench Size 19mm hex key required
Thread Length 26mm (minimum per DIN 931)
Weight Approx 67g (steel variant)
question:Why is the shipping cost so high? Are there more economical options?
answer:Our shipping costs vary by package size and destination. We offer multiple carriers and can recommend the most cost-effective option based on your needs.
question:Can the company provide technical selection services?
answer:Yes, our technical team offers product selection guidance to ensure optimal compatibility and performance for your requirements.
question:Does the company offer upgraded or alternative models?
answer:Yes, we provide upgraded models and alternative options based on availability. Contact us for specific product alternatives.
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:Why is the shipping cost so high? Are there more economical options?
answer:Our shipping costs vary by package size and destination. We offer multiple carriers and can recommend the most cost-effective option based on your needs.
question:Can the company provide technical selection services?
answer:Yes, our technical team offers product selection guidance to ensure optimal compatibility and performance for your requirements.
question:Does the company offer upgraded or alternative models?
answer:Yes, we provide upgraded models and alternative options based on availability. Contact us for specific product alternatives.
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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