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Home Product M3x20 Metric External Hex Bolts Stainless Steel A2-70 Hex Head Fasteners Hardware
Metric external hexagonal bolts M3*20

M3x20 Metric External Hex Bolts Stainless Steel A2-70 Hex Head Fasteners Hardware

M3x20 Hex Bolts Metric
Metric Hex Head Bolts M3-20
Stainless Steel M3x20 Hex Bolts
Metric external hexagonal bolts M3*20
M3x20 Hex Bolts Metric, Stainless Steel M3-20 External Hexagonal Fasteners. Precision-engineered Metric Hex Head Bolts M3x20 for durable mechanical and construction applications. Corrosion-resistant A2/A4 stainless steel metric bolts with DIN 931/933 specifications.
Categories:Fasteners & Fixings
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Product Description

The M3x20 Hex Bolts Metric are precision-engineered stainless steel fasteners designed for robust industrial applications, including machinery assembly, automotive components, and electronic device mounting. Featuring a metric hex head with a 5.5mm wrench size, these M3-0.5 thread pitch bolts offer a total length of 20mm and a shank diameter of 3mm, compliant with DIN 931 standards. Constructed from A2/AISI 304 stainless steel, they provide excellent corrosion resistance and durability across a temperature range of -50°C to +300°C. Ideal for environments requiring vibration resistance and tensile strength up to 700 MPa, these metric hex head bolts excel in electrical enclosures, HVAC systems, and marine hardware installations. Their compact M3x20 size ensures compatibility with tight spaces while maintaining reliable torque retention. Limitations include reduced effectiveness in highly acidic or alkaline conditions. These stainless steel M3x20 hex bolts combine ISO-certified manufacturing with anti-galling properties for long-term structural integrity.
Parameter Specification
Thread Size M3x0.5
Diameter (D) 3 mm
Length (L) 20 mm
Head Type Hex
Head Width (W) 5.5 mm
Head Height (H) 2.0 mm
Thread Length Full Thread
Material Stainless Steel A2/A4
Strength Class A2-70
Surface Finish Plain/Passivated
Standard ISO 4014 / DIN 931
Drive Type Hex Key 2.5 mm
Tensile Strength 700 MPa
Torque Capacity 1.3 Nm max
Temperature Range -50°C to +250°C
question:How is the after-sales service handled if a refurbished product malfunctions?
answer:Refurbished products receive full warranty coverage. We'll repair or replace per our standard policy terms.
question:Why is shipping costly? Are there cheaper delivery options available?
answer:Shipping costs depend on carrier rates and location. We partner with 3PLs to offer economical alternatives upon request.
question:What does the warranty cover?
answer:The warranty covers defects in materials/workmanship, including free repairs/replacements for specified periods.
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 is the after-sales service handled if a refurbished product malfunctions?
answer:Refurbished products receive full warranty coverage. We'll repair or replace per our standard policy terms.
question:Why is shipping costly? Are there cheaper delivery options available?
answer:Shipping costs depend on carrier rates and location. We partner with 3PLs to offer economical alternatives upon request.
question:What does the warranty cover?
answer:The warranty covers defects in materials/workmanship, including free repairs/replacements for specified periods.
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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