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Home Product M1.6*2.5*4 Micro Flat Head Screw, FastTECH A2 Stainless Steel Metric for Electronics PCB Mounting
Carbon steel thin head screws M1.6*2.5*4

M1.6*2.5*4 Micro Flat Head Screw, FastTECH A2 Stainless Steel Metric for Electronics PCB Mounting

M1.6 micro screw
2.5mm pitch fastener
4mm threaded bolt
M1.6*2.5*4
M1.6 micro screw with 2.5mm pitch fastener, 4mm threaded bolt designed for precision electronics, compact assemblies, and miniature mechanical applications requiring ultra-fine fastening solutions. Ideal for low-clearance spaces and micro-component fixation.
Categories:Fasteners & Fixings
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Product Description

The M1.6 micro screw with a 2.5mm pitch fastener and 4mm threaded bolt is designed for precision fastening in compact assemblies. This miniature component features a corrosion-resistant stainless steel body, ideal for applications requiring high torque tolerance (up to 0.15 Nm) and stable performance across temperatures from -20°C to +120°C. Its 2.5mm thread pitch ensures secure engagement in tight spaces, while the 4mm bolt length accommodates thin material stacks commonly found in electronics, medical devices, and micro-optics. The M1.6 hex socket design enables tool-driven installation using 0.9mm driver bits. Though optimized for low-profile mounting in vibration-prone environments, its small scale limits load-bearing capacity. This fastener excels in PCB mounting, sensor housings, and miniature mechanical linkages requiring reliable thread retention under thermal cycling.
Parameter Specification
Thread Diameter M1.6 micro screw
Pitch 2.5mm fastener
Threaded Length 4mm bolt
Thread Type Metric standard (ISO)
Material Steel/Stainless Steel
Strength Grade 4.8/8.8
Head Type Pan head
Drive Type Phillips (PH0)
Surface Treatment Zinc plated/Ni coating
Thread Direction Right-hand
Unit Length Millimeter (mm)
Torque Capacity 0.3 Nm max
Temperature Range -20°C to +120°C
Compliance ISO 4762 / DIN 7984
Application Electronics/Micro-assembly
question:What happens if a product is found refurbished after experiencing a malfunction?
answer:We will replace the product or refund you according to our warranty policy.
question:Do you offer technical selection support?
answer:Yes, we provide complimentary technical selection guidance based on your needs.
question:What shipping methods are available?
answer:We support DHL, Fedex, UPS, and other major carriers for global delivery.
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:What happens if a product is found refurbished after experiencing a malfunction?
answer:We will replace the product or refund you according to our warranty policy.
question:Do you offer technical selection support?
answer:Yes, we provide complimentary technical selection guidance based on your needs.
question:What shipping methods are available?
answer:We support DHL, Fedex, UPS, and other major carriers for global delivery.
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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