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RS PRO Pan Head Pozidriv Sems Screw M4 Thread Size, 16 mm Length, Bright Zinc Steel Finish 278-691
Specifications
| Country of Origin | Taiwan |
|---|---|
| Brand | RS PRO |
| Material | Steel |
| Length | 16mm |
| Model | 278-691 |
| Finish | Bright Zinc |
| Drive Type | Pozidriv |
| Thread Size | M4 |
| Head Shape | Pan |
| Washer type | Spring |
| Standards/Approvals | BS 4183/DIN 6797A |
| RS PRO x 6 mm Bright Zinc Steel Pan Head Sems Screw, External Tooth WasherBrand | RS PRO |
Key Features
- The spring washer is captive for quick installation and prevents loosening.
- Bright zinc plating provides corrosion resistance to enhance durability.
- Pan head design allows good bearing surface and appearance.
- The Pozidriv drive type enables excellent torque transfer and reduced cam-out.
- Complies with BS 4183 and DIN 6797A standards for quality assurance.
- Ideal for electrical connectors, PCB mounting, battery packs, and avionic assembly.
- Designed to reduce inventory and assembly time with integrated washer.
- Manufactured in Taiwan, Province Of China, ensuring high-quality controls.
Product Description
RS PRO presents the 278-691 stainless steel Sems Screw, featuring a M4 thread size and measuring 16 mm in length. This pan head screw is combined with an integral spring washer and bright zinc plating, offering corrosion resistance and reliable fastening in demanding industrial and electronic applications.
These Sems screws are designed for rapid assembly, eliminating the need for separate washers and reducing component count in production lines. The pan head shape ensures a larger bearing surface, distributing load effectively. The Pozidriv drive further allows precise torque application, minimizing risk of cam-out during installation.
Manufactured according to BS 4183 and DIN 6797A standards, this fastener ensures compliance with international quality and safety requirements. Typical applications include avionics communication systems, flight control systems, infra-red systems and cameras, naval and ground fire control systems, PCB assembly, drone sub-assemblies, and connector assemblies.
The bright zinc plating protects the steel from corrosion, enhancing lifespan in various indoor and outdoor environments. Using RS PRO Sems Screws can significantly reduce inventory requirements and increase production efficiency by accelerating the assembly process.
The spring washer is captive and shake-proof for secure fastening. Bright zinc plated steel construction ensures durability and corrosion protection. Pan head Pozidriv screw design provides optimal torque and load distribution.
Conforms to BS 4183 and DIN 6797A standards ensuring high quality. Pre-assembled screws simplify and speed up assembly processes. Widely used in aerospace, electronics, and industrial control sectors. Manufactured in Taiwan, Province Of China with strict quality controls.
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Frequently Asked Questions
The thread size of this Sems screw is M4.
It features a Pozidriv drive type, which allows for excellent torque transfer and reduces the risk of cam-out during installation.
The screw has a bright zinc finish that provides corrosion resistance and enhances durability.
The head shape of this screw is pan, which provides a good bearing surface.
This screw complies with BS 4183 and DIN 6797A standards for quality assurance.
It includes a captive spring washer that aids in quick installation and prevents loosening.
It is manufactured in Taiwan, Province Of China, ensuring high-quality controls.
Typical applications include avionics communication systems, PCB assembly, and connector assemblies.
The pan head design ensures a larger bearing surface, effectively distributing load during fastening.
This screw is made of steel, providing strength and reliability in various applications.
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