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Home Product M3.5*20-2# Stainless Hex Bolt, A2-70 Grade, DIN 933, Corrosion-Resistant Fastener
M3.5*20-2#

M3.5*20-2# Stainless Hex Bolt, A2-70 Grade, DIN 933, Corrosion-Resistant Fastener

M3.5*20-2# screws
M3.5x20mm fasteners
2# series machine screws
M3.5*20-2#
M3.5*20-2# screws, M3.5x20mm fasteners from the 2# series machine screws line, engineered for high-strength mechanical assembly and industrial applications with precise threading and durable zinc alloy material.
Categories:Fasteners & Fixings
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Product Description

The M3.5*20-2# screws, part of the 2# series machine screws, are precision-engineered M3.5x20mm fasteners designed for robust mechanical integration in industrial automation, electronics assembly, and machinery. Featuring a corrosion-resistant steel construction, these screws support high-torque applications with a tensile strength of up to 800 MPa and a temperature range of -30°C to 120°C. Their flat-head design ensures secure fastening in confined spaces, compatible with standard M3.5 threading. Widely used in automotive, aerospace, and semiconductor industries, these fasteners offer exceptional durability and vibration resistance. However, they require precise alignment tools for installation. The 20mm length optimizes grip depth for medium-density materials like aluminum or reinforced plastics, ensuring reliable structural stability under dynamic loads.
Parameter Specification
Product Model M3.5*20-2# screws, M3.5x20mm fasteners, 2# series machine screws
Thread Diameter 3.5mm (M3.5)
Nominal Length 20mm
Thread Type Metric coarse (ISO 68-1)
Head Style Pan head or countersunk (ASME B18.6.3)
Drive Type Phillips (PH2) or slotted
Material Grade Stainless Steel A2-70 / Carbon Steel 4.8
Surface Finish Zinc plated (5-8μm) / Galvanized
Tensile Strength ≥400 MPa (4.8 grade) / ≥700 MPa (A2-70)
Thread Pitch 0.6mm (standard coarse thread)
Thread Length 16mm (±0.5mm tolerance)
Thread Direction Right-hand thread
Standards Compliance ISO 898-1, DIN 7985, ASME B18.6.3
question:Can you provide shipment photos and procurement dates for similar products?
answer:Yes, we can provide shipment photos and procurement details upon request for reference.
question:Is low-value declaration available for shipments?
answer:Low-value declaration is possible, subject to destination country regulations and product type.
question:Do you offer technical selection support?
answer:Yes, our team assists in technical specifications and product selection based on your needs.
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:Can you provide shipment photos and procurement dates for similar products?
answer:Yes, we can provide shipment photos and procurement details upon request for reference.
question:Is low-value declaration available for shipments?
answer:Low-value declaration is possible, subject to destination country regulations and product type.
question:Do you offer technical selection support?
answer:Yes, our team assists in technical specifications and product selection based on your needs.
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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