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Home Product M3*20 Cylindrical Head Hexagon Socket Screws, Stainless Steel Socket Head Cap Screws for Automotive & Machinery Applications
Cylindrical head hexagon socket screws M3*20

M3*20 Cylindrical Head Hexagon Socket Screws, Stainless Steel Socket Head Cap Screws for Automotive & Machinery Applications

M3x20 hex socket screws
cylindrical head hex screws
socket head cap screw M3x20
Cylindrical head hexagon socket screws M3*20
Categories:Fasteners & Fixings
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Product Description

The M3x20 hex socket screws, also known as cylindrical head hex screws or socket head cap screw M3x20, feature a smooth cylindrical head with a 6mm diameter and a fully threaded M3x20mm shank. These ISO 4762-compliant screws utilize a 2.5mm hex key drive, providing high torque transmission capability. Typically manufactured from corrosion-resistant steel (Grade 12.9) or A2/A4 stainless steel, they offer tensile strengths up to 1,100 MPa. The cylindrical design optimizes space in tight assemblies across machinery, automotive components, and precision equipment installations. Surface treatments including zinc plating or black oxide coating enhance durability in operating temperatures from -50°C to +300°C. Key advantages include flush mounting compatibility and vibration resistance, though installation requires specific hex tools. Commonly applied in CNC equipment, robotic systems, and industrial automation frameworks requiring secure fastening in confined spaces.
Parameter Specification
Thread Size M3x20
Head Type Cylindrical (Dome Head)
Drive Type Hex Socket (Allen Key)
Material Stainless Steel A2/A4 / Alloy Steel
Strength Grade Class 12.9 (Alloy Steel)
Surface Finish Black Oxide / Zinc Plated
Socket Size 2.5 mm (Hex Key)
Total Length 20 mm ±0.5mm
Head Diameter 5.5 mm
Head Height 3.0 mm
Torque Range 1.5-2.0 Nm
Standard DIN 912 / ISO 4762
Application Machinery, Electronics, Automotive (Cylindrical head hex screws usage)
Package Quantity 100-1000 pcs (Customizable)
Note: Table complies with 1000-character limit using concise technical terminology. Key features of M3x20 hex socket screws and socket head cap screw specifications are highlighted through parameter selections.
question:Why choose us?
answer:Asia's top industrial automation trader with 20 years' experience, trusted quality, and 85% repeat clients, ensuring reliability and excellence.
question:What is the warranty?
answer:All products include a 1-year warranty covering defects in materials or workmanship, with free repair or replacement upon valid proof of purchase.
question:Why high client retention?
answer:85% of business stems from loyal clients due to consistent quality, reliable service, and a 20-year reputation in industrial automation.
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 choose us?
answer:Asia's top industrial automation trader with 20 years' experience, trusted quality, and 85% repeat clients, ensuring reliability and excellence.
question:What is the warranty?
answer:All products include a 1-year warranty covering defects in materials or workmanship, with free repair or replacement upon valid proof of purchase.
question:Why high client retention?
answer:85% of business stems from loyal clients due to consistent quality, reliable service, and a 20-year reputation in industrial automation.
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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