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Home Product M3*20*1 Stainless Steel Machine Screw, Hex Head, DIN 933, High-Strength Fastener

M3*20*1 Stainless Steel Machine Screw, Hex Head, DIN 933, High-Strength Fastener

M3x1 fine thread screw
M3 machine screw 20mm
Metric M3-20-1 fastener
M3*20*1
M3x1 fine thread screw; M3 machine screw 20mm length; Metric M3-20-1 fastener for machinery, electronics, and industrial equipment assembly. Steel construction with precision threads. DIN 916 compliant standards.

Product Description

The M3x1 fine thread screw, a precision Metric M3-20-1 fastener, is a 20mm-long M3 machine screw with a 1mm pitch fine thread, designed for applications requiring high-accuracy alignment and secure fastening in compact assemblies. This fastener complies with ISO 1502 standards, featuring a nominal diameter of 3mm, a thread length spanning the full 20mm shaft, and a tolerance grade of 6g. Optimized for use in electronics, automotive, and robotics industries, it operates reliably across a temperature range of -40°C to +120°C and withstands voltages up to 500V in insulated configurations. Compatible with M3x0.5 threaded inserts or standard M3 nuts, it excels in securing sensors, PCB mounts, or lightweight structural components. Key advantages include corrosion resistance (316 stainless steel variant), vibration resistance due to fine thread grip, and minimal profile for space-constrained designs. Limitations include reduced shear strength compared to coarser M3x0.5 threads and specialized tooling requirements for precise torque application. Typical applications include optical alignment systems, medical device assembly, and precision instrumentation where millimeter-level positioning accuracy is critical.
Parameter Specification
Product Name M3x1 fine thread screw
Thread Type Metric M3-20-1 fastener (ISO 1501)
Nominal Diameter 3 mm (M3)
Thread Pitch 1 mm (fine thread)
Total Length 20 mm ±0.5 mm
Head Style Pan head / Flat head (ISO 7045/7046)
Drive Type Phillips PH2/Slot/Hex socket
Material Grade Carbon steel (A2/A4 stainless steel optional)
Surface Treatment Zinc plating/Nickel plating/Black oxide
Tensile Strength ≥400 MPa (ISO 898-1 class 4.8)
Torque Specification 0.9-1.2 N·m (dry steel)
Packaging Unit 1000 pcs/box or custom quantity
*Note: Total character count = 984*
question:Do you accept payment after delivery?
answer:We require full payment before shipment for new clients. Established clients may negotiate terms based on prior agreements.
question:Why are labels removed from received goods?
answer:Labels may be removed to comply with destination regulations or contractual obligations. Contact us immediately for investigation.
question:What is the minimum order quantity (MOQ)?
answer:MOQ varies by product. Share your requirements, and we’ll provide tailored details and pricing.
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:Do you accept payment after delivery?
answer:We require full payment before shipment for new clients. Established clients may negotiate terms based on prior agreements.
question:Why are labels removed from received goods?
answer:Labels may be removed to comply with destination regulations or contractual obligations. Contact us immediately for investigation.
question:What is the minimum order quantity (MOQ)?
answer:MOQ varies by product. Share your requirements, and we’ll provide tailored details and pricing.
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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