OneMonroe’s Lyn-tron brand Metric Washer Face Thumb Screws are proudly manufactured in the USA, delivering precision-engineered fastening solutions for applications that demand reliability and performance. Designed with a wide washer face, these thumb screws provide increased surface contact to prevent damage to panels, enclosures, or sensitive components during manual tightening.
Made from high-quality materials and produced under strict manufacturing standards, Lyn-tron’s metric washer face thumb screws are ideal for industries such as electronics, aerospace, instrumentation, and medical devices. The ergonomic knurled head ensures easy, tool-free installation and removal, making them perfect for assemblies that require frequent access or adjustments.
Available in a variety of metric sizes and finishes, these thumb screws combine function with durability, backed by American-made craftsmanship and OneMonroe’s commitment to quality.
| Items |
 BR5440-00 Metric Washer Face Thumb Screw |
BR5441-00 Metric Washer Face Thumb Screw |
BR5442-00 Metric Washer Face Thumb Screw |
BR5443-00 Metric Washer Face Thumb Screw |
BR5444-00 Metric Washer Face Thumb Screw |
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| Material | Brass | |||||||||
| OD | 10 mm | |||||||||
| Head Diameter | 10 mm | |||||||||
| Washer Dia | 9.5 mm | |||||||||
| Male Thread | M3X0.5 | M3X0.5 | M3X0.5 | M3.5X0.6 | M3.5X0.6 | |||||
| OAL | 16 mm | 17 mm | 19 mm | 17 mm | 19 mm | |||||
| Head Length | 5 mm | |||||||||
| Thread Length | 8 mm | 9 mm | 11 mm | 9 mm | 11 mm | |||||
| Part Description | M3X0.5 Male Thread x 8 mm Thread Length Brass Metric Washer Face Thumb Screw | M3X0.5 Male Thread x 9 mm Thread Length Brass Metric Washer Face Thumb Screw | M3X0.5 Male Thread x 11 mm Thread Length Brass Metric Washer Face Thumb Screw | M3.5X0.6 Male Thread x 9 mm Thread Length Brass Metric Washer Face Thumb Screw | M3.5X0.6 Male Thread x 11 mm Thread Length Brass Metric Washer Face Thumb Screw | |||||
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