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Home Product M6x20 External Hex Bolt - Stainless Steel DIN 933 Metric Hex Head Screw
Metric external hexagonal bolts M6*20

M6x20 External Hex Bolt - Stainless Steel DIN 933 Metric Hex Head Screw

M6 hex bolts 20mm
DIN 931 hex bolts
Galvanized M6 hex bolts
Metric external hexagonal bolts M6*20
Metric M6 hex bolts 20mm length, compliant with DIN 931 standard, hot-dip galvanized for corrosion resistance in industrial and construction applications. Durable zinc-coated fasteners with full thread.
Categories:Fasteners & Fixings
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Product Description

The M6 hex bolts 20mm are metric external hexagonal fasteners designed to DIN 931 hex bolts standards, featuring a 6mm diameter and 20mm threaded length. These galvanized M6 hex bolts utilize a hot-dip zinc coating for enhanced corrosion resistance, ideal for outdoor or high-moisture environments. Constructed from grade 8.8 carbon steel, they offer tensile strengths up to 800 MPa with a working temperature range of -30°C to +120°C. Primarily used in machinery assembly, automotive manufacturing, and structural applications, these bolts enable secure fastening through direct threading into pre-tapped holes or with compatible nuts. Advantages include standardized DIN 931 compliance for universal compatibility and weather-resistant galvanization, though prolonged exposure to acidic conditions may accelerate zinc layer degradation. The precise hex head design allows torque application up to 15 Nm using standard 10mm wrenches.
Parameter Specification
Thread Size M6 hex bolts 20mm
Standard DIN 931 hex bolts
Head Type Hexagonal external
Shank Length 20 mm (±0.5mm)
Surface Treatment Galvanized M6 hex bolts (5-8μm)
Material Grade Carbon Steel 4.8/8.8
Thread Pitch 1.0 mm (coarse thread)
Hexagon Width 10 mm (across flats)
Proof Load 420 MPa (grade 8.8)
Thread Tolerance 6g per ISO 965-1
Corrosion Protection Zinc plating (ISO 4042)
Alternative Designation ISO 4014 equivalent
question:Why are service charges applied?
answer:Service charges cover transaction processing and operational costs.
question:Can your company provide technical selection services?
answer:Yes, we offer expert technical selection support to meet project needs.
question:What are the payment terms?
answer:Payment terms vary by project; details are outlined in proposals.
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 are service charges applied?
answer:Service charges cover transaction processing and operational costs.
question:Can your company provide technical selection services?
answer:Yes, we offer expert technical selection support to meet project needs.
question:What are the payment terms?
answer:Payment terms vary by project; details are outlined in proposals.
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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