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Home Product 840-8M*10*720 Industrial Spring, High-Load Torsion Coil, 8mm Wire x 720mm Length, Heavy Machinery Component
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840-8M*10*720 Industrial Spring, High-Load Torsion Coil, 8mm Wire x 720mm Length, Heavy Machinery Component

840-8M Fasteners
8Mx10x720 Bolts
840 Series Steel Nuts
840-8M*10*720
840-8Mx10x720 Fasteners for industrial applications, featuring 8Mx10x720 Bolts and 840 Series Steel Nuts. High-tensile 840 Series steel construction ensures corrosion resistance and durability. ASTM-compliant design for heavy-load machinery, infrastructure, and equipment assembly. Engineered for reliable performance in extreme conditions.
Categories:HVAC and Refrigeration
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Product Description

The 840-8M*10*720 is a high-precision industrial fastener system designed for heavy-duty applications, featuring 840-8M Fasteners and 8Mx10x720 Bolts engineered from corrosion-resistant 840 Series Steel Nuts. It integrates 8 digital inputs and 4 analog outputs, supporting direct connectivity to 12 modular expansion units via RS-485 or Ethernet communication. Operating within 12-36VDC and -25°C to +70°C, it excels in automotive, construction, and machinery industries. Key advantages include exceptional tensile strength (720MPa), compatibility with harsh environments, and a compact 5.7-inch display for real-time monitoring. Detection ranges span up to 15 meters with ±0.1mm accuracy. Limited by its 5000mAh battery runtime during mobile use, it prioritizes durability over portability. Screens feature 1280x720 resolution for clear parameter visualization.
Parameter Specification
Product Model 840-8M Fasteners (8Mx10x720 Bolts)
Thread Size M8 (8mm nominal diameter)
Length 720mm ±1% tolerance
Thread Pitch 1.25mm coarse thread
Material Grade 840 Series Steel with anti-corrosion treatment
Tensile Strength ≥800 MPa (ISO 898-1 compliant)
Surface Finish Zinc Plated (5-8μm thickness)
Hex Nut Compatibility 840 Series Steel Nuts (M8 size)
Torque Requirements 20-25 N·m (dry thread conditions)
Temperature Range -50°C to +150°C
Certification ASTM A574 / DIN 933 / ISO 4014
Packaging Bulk packaging or 200pcs/box
question:Can the company provide upgraded or alternative models?
answer:Yes, we offer various upgraded and alternative models with expert technical support to ensure optimal compatibility and performance.
question:Why should we purchase from your company?
answer:As Asia's leading industrial automation trader with 20+ years of proven reliability, 85% repeat clients trust our quality and reputation.
question:Can shipments be declared under low value for customs?
answer:Low-value declaration depends on destination regulations. We comply legally while advising clients to minimize risks effectively.
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 the company provide upgraded or alternative models?
answer:Yes, we offer various upgraded and alternative models with expert technical support to ensure optimal compatibility and performance.
question:Why should we purchase from your company?
answer:As Asia's leading industrial automation trader with 20+ years of proven reliability, 85% repeat clients trust our quality and reputation.
question:Can shipments be declared under low value for customs?
answer:Low-value declaration depends on destination regulations. We comply legally while advising clients to minimize risks effectively.
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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