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Lyn-Tron's Washer Thumb Screws are designed to be installed by hand rather than by hand tools or power tools. The high-quality knurl provides a non-slip surface to grip onto. In addition, the washer face provides a decorative appearance, but also adds clearance between the head and mating part making these screws easy to unscrew compared to a plain thumb screw. The round shape provide a nice finished look. Base metal is yellow, but many plating options are available when different colors are required.

washer-face-thumb-screw_large
Unit of Measure
1 2 

Item #

Material

Thread Length

Head Diameter

Male Thread

Head Length

OD

Washer Dia

OAL

Part Description

BR5440-00 N/A Brass N/A 8 mm N/A 10 mm N/A M3X0.5 N/A 5 mm N/A 10 mm N/A 9.5 mm N/A 16 mm N/A M3X0.5 Male Thread x 8 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5441-00 N/A Brass N/A 9 mm N/A 10 mm N/A M3X0.5 N/A 5 mm N/A 10 mm N/A 9.5 mm N/A 17 mm N/A M3X0.5 Male Thread x 9 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5442-00 N/A Brass N/A 11 mm N/A 10 mm N/A M3X0.5 N/A 5 mm N/A 10 mm N/A 9.5 mm N/A 19 mm N/A M3X0.5 Male Thread x 11 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5443-00 N/A Brass N/A 9 mm N/A 10 mm N/A M3.5X0.6 N/A 5 mm N/A 10 mm N/A 9.5 mm N/A 17 mm N/A M3.5X0.6 Male Thread x 9 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5444-00 N/A Brass N/A 11 mm N/A 10 mm N/A M3.5X0.6 N/A 5 mm N/A 10 mm N/A 9.5 mm N/A 19 mm N/A M3.5X0.6 Male Thread x 11 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5445-00 N/A Brass N/A 13 mm N/A 10 mm N/A M3.5X0.6 N/A 5 mm N/A 10 mm N/A 9.5 mm N/A 21 mm N/A M3.5X0.6 Male Thread x 13 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5446-00 N/A Brass N/A 9 mm N/A 11 mm N/A M4X0.7 N/A 5 mm N/A 11 mm N/A 9.5 mm N/A 17 mm N/A M4X0.7 Male Thread x 9 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5447-00 N/A Brass N/A 13 mm N/A 11 mm N/A M4X0.7 N/A 5 mm N/A 11 mm N/A 9.5 mm N/A 21 mm N/A M4X0.7 Male Thread x 13 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5448-00 N/A Brass N/A 16 mm N/A 11 mm N/A M4X0.7 N/A 5 mm N/A 11 mm N/A 9.5 mm N/A 24 mm N/A M4X0.7 Male Thread x 16 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5449-00 N/A Brass N/A 9 mm N/A 11 mm N/A M5X0.8 N/A 5 mm N/A 11 mm N/A 9.5 mm N/A 17 mm N/A M5X0.8 Male Thread x 9 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5450-00 N/A Brass N/A 13 mm N/A 11 mm N/A M5X0.8 N/A 5 mm N/A 11 mm N/A 9.5 mm N/A 21 mm N/A M5X0.8 Male Thread x 13 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5451-00 N/A Brass N/A 16 mm N/A 11 mm N/A M5X0.8 N/A 5 mm N/A 11 mm N/A 9.5 mm N/A 24 mm N/A M5X0.8 Male Thread x 16 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5452-00 N/A Brass N/A 9 mm N/A 13 mm N/A M6X1 N/A 6 mm N/A 13 mm N/A 9.5 mm N/A 18 mm N/A M6X1 Male Thread x 9 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5453-00 N/A Brass N/A 13 mm N/A 13 mm N/A M6X1 N/A 6 mm N/A 13 mm N/A 9.5 mm N/A 22 mm N/A M6X1 Male Thread x 13 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5454-00 N/A Brass N/A 16 mm N/A 13 mm N/A M6X1 N/A 6 mm N/A 13 mm N/A 9.5 mm N/A 25 mm N/A M6X1 Male Thread x 16 mm Thread Length Brass Metric Washer Face Thumb Screw
BR5455-00 N/A Brass N/A 19 mm N/A 13 mm N/A M6X1 N/A 6 mm N/A 13 mm N/A 9.5 mm N/A 28 mm N/A M6X1 Male Thread x 19 mm Thread Length Brass Metric Washer Face Thumb Screw
SS5440-00 N/A Stainless Steel N/A 8 mm N/A 10 mm N/A M3X0.5 N/A 5 mm N/A 10 mm N/A 9.5 mm N/A 16 mm N/A M3X0.5 Male Thread x 8 mm Thread Length Stainless Steel Metric Washer Face Thumb Screw
SS5441-00 N/A Stainless Steel N/A 9 mm N/A 10 mm N/A M3X0.5 N/A 5 mm N/A 10 mm N/A 9.5 mm N/A 17 mm N/A M3X0.5 Male Thread x 9 mm Thread Length Stainless Steel Metric Washer Face Thumb Screw
SS5442-00 N/A Stainless Steel N/A 11 mm N/A 10 mm N/A M3X0.5 N/A 5 mm N/A 10 mm N/A 9.5 mm N/A 19 mm N/A M3X0.5 Male Thread x 11 mm Thread Length Stainless Steel Metric Washer Face Thumb Screw
SS5443-00 N/A Stainless Steel N/A 9 mm N/A 10 mm N/A M3.5X0.6 N/A 5 mm N/A 10 mm N/A 9.5 mm N/A 17 mm N/A M3.5X0.6 Male Thread x 9 mm Thread Length Stainless Steel Metric Washer Face Thumb Screw
SS5444-00 N/A Stainless Steel N/A 11 mm N/A 10 mm N/A M3.5X0.6 N/A 5 mm N/A 10 mm N/A 9.5 mm N/A 19 mm N/A M3.5X0.6 Male Thread x 11 mm Thread Length Stainless Steel Metric Washer Face Thumb Screw
SS5445-00 N/A Stainless Steel N/A 13 mm N/A 10 mm N/A M3.5X0.6 N/A 5 mm N/A 10 mm N/A 9.5 mm N/A 21 mm N/A M3.5X0.6 Male Thread x 13 mm Thread Length Stainless Steel Metric Washer Face Thumb Screw
SS5446-00 N/A Stainless Steel N/A 9 mm N/A 11 mm N/A M4X0.7 N/A 5 mm N/A 11 mm N/A 9.5 mm N/A 17 mm N/A M4X0.7 Male Thread x 9 mm Thread Length Stainless Steel Metric Washer Face Thumb Screw
SS5447-00 N/A Stainless Steel N/A 13 mm N/A 11 mm N/A M4X0.7 N/A 5 mm N/A 11 mm N/A 9.5 mm N/A 21 mm N/A M4X0.7 Male Thread x 13 mm Thread Length Stainless Steel Metric Washer Face Thumb Screw
SS5448-00 N/A Stainless Steel N/A 16 mm N/A 11 mm N/A M4X0.7 N/A 5 mm N/A 11 mm N/A 9.5 mm N/A 24 mm N/A M4X0.7 Male Thread x 16 mm Thread Length Stainless Steel Metric Washer Face Thumb Screw
Unit of Measure
1 2