RS PRO M4 x 12mm Zinc Plated Steel Pan Head Sems Screw, External Tooth Washer
- RS Stock No.:
- 0278691
- Brand:
- RS PRO
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.
Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.
RS definition of RoHS Compliance:
- The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
- and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering
The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:
| Substance | Concentration |
| Lead | 0.1% |
| Mercury | 0.1% |
| PBB (Polybrominated Biphenyls) | 0.1% |
| PBDE ( Polybrominated Diphenyl Ethers) | 0.1% |
| Hexavalent Chromium | 0.1% |
| Cadmium | 0.01% |
| DEHP (Bis (2-Ethylhexl) phthalate) | 0.1% |
| BBP (Benzyl butyl phthalate) | 0.1% |
| DBP (Dibutyl phthalate) | 0.1% |
| DIBP (Diisobutyl phthalate) | 0.1% |
The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".
RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.
| RS stock number | 0278691 |
| Product description | RS PRO M4 x 12mm Zinc Plated Steel Pan Head Sems Screw, External Tooth Washer |
| Manufacturer / Brand | RS PRO |
RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK
Statement of Conformity
This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.
| RS stock number | 0278691 |
| Product description | RS PRO M4 x 12mm Zinc Plated Steel Pan Head Sems Screw, External Tooth Washer |
| Manufacturer / Brand | RS PRO |
The foregoing information relates to product sold on, or after, the date shown below.
RS COMPONENTS
| Date | Dec 27, 2024 |
RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132
Country of Origin: TW
Product Details
RS PRO Stainless-Steel Sems Screw
Pre-assembled Screws have revolutionised the assembly in many parts of our lives, from Drone sub-assemblies, control systems to aerospace avionics sector.
We are proudly introducing our own branded RS PRO Stainless-Steel Sems Screw with bright zinc plating, which is particularly essential for corrosion resistance.
The low-cost Fastener consists of a pan head pozidriv screw with integral captive washer for quick and easy installation.
SEMS Screw is a fast, permanent and in combination with a nut plate, you can significantly reduce the number of components needed, especially in an electrical connector assembly, meaning more time for your project.
A significant advantage of using our Sems Screws lies in reduced inventory count and allowing you to increase your production through the easy assembly.
As SEMS Machine Screws does not require thinking about missing washers, you are extending product life and speed up the performance of the whole part.
Note
All these are coarse metric thread. The fine thread pitch would typically start at M8 diameter.
Thread pitch as follows.
M3 x 0.5mm pitch
M4 x 0.7mm pitch
M5 x 0.8mm pitch
M6 x 1.0mm pitch
Features and Benefits
- External shake-proof washer Pan headed pozidriv screw
- Bright zinc plated stainless-steel construction to protect against corrosion
- Low-cost Fastener, allowing you more accessible and quicker to install than separate screws and washers
- SEMS enabling you to reduce the number of components needing to complete your small or big project
- Our range of 6, 10, 12 and 16 mm Sems Screw letting you lower inventory count
Applications
Not surprisingly, thanks to high-quality and friendly installation SEMS Screws have their place in:
- Avionic communication systems
- Flight control systems
- Infra-red systems and cameras
- Naval & ground fire control systems
- Battery packs
- PCB (Printed Circuit Board) assembly
- Drone sub-assemblies
- Connector assembly
Why RS PRO?
RS PRO is our family brand to go-to and brings you a wide range for high-quality and high-value products to support your project. Trusted by engineers all over the world, every part of every RS PRO product is always rigorously tested against demanding industry standards. We are only giving the RS PRO seal of approval if we are confident of their exceptional quality, which means you can be convinced too.
Specifications
| Attribute | Value |
| Brand | RS PRO |
| Drive Type | Pozidriv |
| Finish | Bright Zinc Plated |
| Length | 12 mm |
| Material | Steel |
| Head Shape | Pan |
| Thread Size | M4 |
| Washer Type | External Tooth |