M1.6 x 4mm T5 Torx Pan Head Screws (DIN 7985) - Stainless Steel (A2) Description
The M1.6 x 4mm T5 Torx Pan Head Screws (DIN 7985) - Stainless Steel (A2) has the following features:
- Natural Finish
- Head Diameter (D): 3.2 mm
- Head Diameter (D) Tolerance: +0/-0.3 mm
- Head Length (H): 1.42 mm
- Head Length (H) Tolerance: +0/-0.24 mm
- Manufacturing Standard: DIN 7985
- Stainless Steel - (A2)
- Stainless Steel Material Family
- Screw Thread Pitch: 0.35 mm
- System of Measurement: Metric
- Thread Length (L): 4 mm
- Thread Size: M1.6 (1.6 mm)
- Torx Size: T5
Discover more about the Metric Torx Pan Head Screws range.
Torx pan head screws are machine-threaded fasteners featuring a rounded pan head and a six-lobed hexalobular Torx drive. Designed for precise, high-torque applications, they offer improved tool engagement and reduced risk of cam-out compared to traditional drive types.
These machine screws are commonly used in engineering assemblies that require clean aesthetics, even load distribution and reliable torque control. Frequently specified in sectors such as electronics, mechanical engineering and automation, pan head Torx screws are ideal where secure fastening and consistent drive performance are essential.
How Pan Head Torx Screws Work
Pan head Torx screws are built for high-precision fastening. The Torx drive design enables the driver to make full contact with the recess, minimising the risk of tool slippage and reducing wear on both the screw and the tool. This allows for greater torque transfer without damaging the drive or workpiece.
The pan head provides a broad bearing surface that sits proud of the surface, distributing clamping force evenly. This makes them suitable for applications where material protection and consistent clamping pressure are priorities. With machine threads, these screws deliver strong, repeatable fastening into tapped holes or with matching machine nuts.
Materials Torx Pan Head Screws Are Made From
Accu’s range of materials includes popular choices such as steel and stainless steel pan head Torx screws, suitable for both general-purpose and corrosion-resistant operating environments:
- Steel: A durable, cost-effective option for general-purpose indoor applications.
- Stainless Steel - (A2): Offers excellent corrosion resistance for use in outdoor environments.
- Stainless Steel - Marine (A4): Provides enhanced resistance to saltwater, chemicals and harsh weather conditions.
- Stainless Steel - Marine High Tensile (A4-80): Combines marine-grade corrosion resistance with increased tensile strength.
- Stainless Steel - Bumax 88: A premium stainless alloy with superior strength and corrosion resistance for demanding applications.
Sizes and Types of Torx Pan Head Machine Screws Available
Accu supplies a wide range of Torx pan head machine screws to support various engineering needs, including:
- Thread Sizes: M1.6 (1.6mm) to M10 (10mm)
- Lengths: 2mm to 120mm
- Finishes: AccuBlack, a matte black coating for improved appearance and reduced reflections. AccuLock, a pre-applied thread locking patch for increased vibration resistance. Zinc plating provides corrosion protection in moderate environments.
FAQs
Q: Are these screws suitable for outdoor or marine environments?
A: Yes, stainless steel A4 and A4-80 variants are well-suited for outdoor and marine use due to their enhanced corrosion resistance.
Q: Can these Torx pan head screws be reused?
A: Yes, provided that the threads, head and drive recess are undamaged, they can be reused in appropriate applications.
Q: What type of screwdriver is required for Torx pan head screws?
A: A correctly sized Torx driver or bit (T5–T50, depending on size) is required for proper engagement and to prevent damage to the recess.
