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Home Product Metric external hexagonal bolts M10*55 | Hex Head Screw, High Tensile, DIN 933, Stainless Steel A2, Construction Fastener, Machinery Hardware
Metric external hexagonal bolts M10*55

Metric external hexagonal bolts M10*55 | Hex Head Screw, High Tensile, DIN 933, Stainless Steel A2, Construction Fastener, Machinery Hardware

M10-55 hex bolts
Hex bolt DIN 931
High tensile metric bolts
Metric external hexagonal bolts M10*55
M10-55 hex bolts compliant with DIN 931 standard, made from high tensile steel for reliable performance in heavy-duty applications. Precision-engineered metric bolts with full threading and hexagonal head design.
Categories:Fasteners & Fixings
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Product Description

The M10-55 hex bolts are high-strength metric fasteners designed to DIN 931 standards, featuring a full M10 thread with a 55 mm nominal length. These high tensile metric bolts (property class 8.8/10.9) are engineered for heavy-duty applications, offering a minimum tensile strength of 800-1040 MPa and a surface hardness of HV 250-320. They operate reliably in industrial environments with temperature ranges from -50°C to +120°C, suitable for construction, automotive assembly, and machinery manufacturing. The zinc-plated or hot-dip galvanized finish provides corrosion resistance for outdoor use. Advantages include precise dimensional compliance, robust shear resistance, and compatibility with ISO 4014/4017 systems. Limitations include mandatory torque-calibrated installation and potential incompatibility with non-metric threaded components. Typical torque specifications range 45-60 Nm for 8.8 grade steel.
Parameter Specification
Product Designation M10-55 hex bolts, Hex bolt DIN 931
Thread Diameter M10 (10mm)
Nominal Length 55mm
Thread Pitch 1.5mm (Standard coarse thread)
Head Style External hexagonal (DIN 931 configuration)
Tensile Strength 800 MPa min (High tensile metric bolts)
Material Grade Class 8.8 / Grade 5 equivalent
Surface Treatment Plain, zinc-plated, or hot-dip galvanized
Hexagon Width 17mm (Across flats)
Thread Length 32mm (Minimum per DIN 931)
Standards Compliance DIN 931, ISO 4014, ISO 4017
Proof Load 33700 N (Class 8.8)
Yield Strength 640 MPa (Class 8.8)
question:Why should we choose your company for industrial automation products?
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question:Can your company ensure stable supply of products?
answer:We maintain steady production plans, strategic partnerships with suppliers, and ample inventory to ensure reliable product availability year-round.
question:What shipping methods do you support?
answer:We offer global shipping via DHL, FedEx, UPS, and other major carriers, ensuring timely and secure delivery to your location.
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 should we choose your company for industrial automation products?
answer:As Asia's leading trader with 20+ years' experience, we guarantee quality, reliability, and exceptional reputation, with 85% repeat customers.
question:Can your company ensure stable supply of products?
answer:We maintain steady production plans, strategic partnerships with suppliers, and ample inventory to ensure reliable product availability year-round.
question:What shipping methods do you support?
answer:We offer global shipping via DHL, FedEx, UPS, and other major carriers, ensuring timely and secure delivery to your location.
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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