S-93140A160 M3 x 5 mm ASME B18.6.7M Plastic Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior optical clarity and chemical resistance from clear polycarbonate material, ideal for applications requiring visibility or exposure to various substances.
• Excellent dimensional stability across a wide temperature range (-40° to 210° F), ensuring reliable performance in fluctuating thermal environments.
• Precise Class 6g thread fit for smooth assembly and secure fastening in metric M3 tapped holes, reducing the risk of cross-threading.
• 90° countersink angle and flat head design provides a flush, low-profile finish that minimizes protrusion and improves aesthetic integration.
• Full threading along the 5mm length maximizes grip and load distribution across the entire engagement area.
• Slotted drive style allows for simple installation and removal with standard screwdrivers, facilitating easy maintenance.
• Inherent corrosion resistance and electrical insulation of polycarbonate plastic eliminates the risk of galvanic corrosion and is safe for electronic assemblies.

Professional Applications & Engineering Value

This M3 x 0.5mm flat head screw is engineered from clear polycarbonate plastic to address critical needs in precision assemblies where metal fasteners are unsuitable. Its fully threaded design and Class 6g thread fit ensure consistent engagement in metric coarse thread applications, reducing installation torque and preventing material stress in plastic or soft substrates. The slotted drive and 90° countersink angle enable a seamless, flush mount—ideal for optical devices, consumer electronics, and medical equipment housings where aesthetics and safety are paramount. With a temperature resistance from -40° to 210° F, it performs reliably in both indoor and challenging environments, while its non-conductive and non-corrosive properties make it a go-to for electrical insulation and corrosive-sensitive settings.

Specification Summary & Compliance

This screw features an M3 metric thread with a 0.5mm pitch and coarse thread spacing, manufactured to a Class 6g thread tolerance for consistent fit. It complies with the ASME B18.6.7M standard for dimensional accuracy and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it is free of hazardous substances and safe for use in regulated markets.