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OneMonroe’s Lyn-Tron Captive Panel Screws are proudly manufactured in the USA and engineered for reliable, secure fastening in electronic enclosures, panels, and industrial assemblies. Designed to remain attached to the panel even when disengaged, these captive screws eliminate the risk of lost hardware and improve serviceability in high-vibration or maintenance-intensive environments.

Crafted with precision and available in a variety of thread sizes, head styles, and finishes, Lyn-Tron Captive Panel Screws offer a clean, professional look with consistent performance. These screws are ideal for use in aerospace, defense, telecom, and rack-mounted systems where retention and durability are critical.

As part of the trusted Lyn-Tron brand, our captive panel screws are CNC-machined to tight tolerances and meet demanding quality standards. Whether you're building custom equipment or retrofitting existing hardware, you can count on OneMonroe’s American-made quality and engineering expertise.

captive-panel-screw-type-6_large
Unit of Measure
1 2 

Item #

OD

Head Diameter

Shank DIA

Male Thread

Head Length

Thread Length

Material

Style

Quantity
BR8550-00 N/A 6.4 N/A 6.4 N/A 2 N/A M3X0.5 N/A 3.2 N/A 4.8 N/A Brass N/A Slotted Flat Head
BR8551-00 N/A 6.4 N/A 6.4 N/A 2 N/A M3X0.5 N/A 3.2 N/A 4.8 N/A Brass N/A Slotted Flat Head
BR8552-00 N/A 7.1 N/A 7.1 N/A 2.4 N/A M3.5X0.6 N/A 3.2 N/A 5.5 N/A Brass N/A Slotted Flat Head
BR8553-00 N/A 7.1 N/A 7.1 N/A 2.4 N/A M3.5X0.6 N/A 3.2 N/A 5.5 N/A Brass N/A Slotted Flat Head
BR8554-00 N/A 7.1 N/A 7.1 N/A 2.4 N/A M3.5X0.6 N/A 3.2 N/A 5.5 N/A Brass N/A Slotted Flat Head
BR8555-00 N/A 8 N/A 8 N/A 3 N/A M4X0.7 N/A 4 N/A 6.4 N/A Brass N/A Slotted Flat Head
BR8556-00 N/A 8 N/A 8 N/A 3 N/A M4X0.7 N/A 4 N/A 6.4 N/A Brass N/A Slotted Flat Head
BR8557-00 N/A 8 N/A 8 N/A 3 N/A M4X0.7 N/A 4 N/A 6.4 N/A Brass N/A Slotted Flat Head
BR8558-00 N/A 9.5 N/A 9.5 N/A 3.3 N/A M5X0.8 N/A 4.8 N/A 7.9 N/A Brass N/A Slotted Flat Head
BR8559-00 N/A 9.5 N/A 9.5 N/A 3.3 N/A M5X0.8 N/A 4.8 N/A 7.9 N/A Brass N/A Slotted Flat Head
SS8550-00 N/A 6.4 N/A 6.4 N/A 2 N/A M3X0.5 N/A 3.2 N/A 4.8 N/A Stainless Steel N/A Slotted Flat Head
SS8551-00 N/A 6.4 N/A 6.4 N/A 2 N/A M3X0.5 N/A 3.2 N/A 4.8 N/A Stainless Steel N/A Slotted Flat Head
SS8552-00 N/A 7.1 N/A 7.1 N/A 2.4 N/A M3.5X0.6 N/A 3.2 N/A 5.5 N/A Stainless Steel N/A Slotted Flat Head
SS8553-00 N/A 7.1 N/A 7.1 N/A 2.4 N/A M3.5X0.6 N/A 3.2 N/A 5.5 N/A Stainless Steel N/A Slotted Flat Head
SS8554-00 N/A 7.1 N/A 7.1 N/A 2.4 N/A M3.5X0.6 N/A 3.2 N/A 5.5 N/A Stainless Steel N/A Slotted Flat Head
SS8555-00 N/A 8 N/A 8 N/A 3 N/A M4X0.7 N/A 4 N/A 6.4 N/A Stainless Steel N/A Slotted Flat Head
SS8556-00 N/A 8 N/A 8 N/A 3 N/A M4X0.7 N/A 4 N/A 6.4 N/A Stainless Steel N/A Slotted Flat Head
SS8557-00 N/A 8 N/A 8 N/A 3 N/A M4X0.7 N/A 4 N/A 6.4 N/A Stainless Steel N/A Slotted Flat Head
SS8558-00 N/A 9.5 N/A 9.5 N/A 3.3 N/A M5X0.8 N/A 4.8 N/A 7.9 N/A Stainless Steel N/A Slotted Flat Head
SS8559-00 N/A 9.5 N/A 9.5 N/A 3.3 N/A M5X0.8 N/A 4.8 N/A 7.9 N/A Stainless Steel N/A Slotted Flat Head
ST8550-00 N/A 6.4 N/A 6.4 N/A 2 N/A M3X0.5 N/A 3.2 N/A 4.8 N/A Steel N/A Slotted Flat Head
ST8551-00 N/A 6.4 N/A 6.4 N/A 2 N/A M3X0.5 N/A 3.2 N/A 4.8 N/A Steel N/A Slotted Flat Head
ST8552-00 N/A 7.1 N/A 7.1 N/A 2.4 N/A M3.5X0.6 N/A 3.2 N/A 5.5 N/A Steel N/A Slotted Flat Head
ST8553-00 N/A 7.1 N/A 7.1 N/A 2.4 N/A M3.5X0.6 N/A 3.2 N/A 5.5 N/A Steel N/A Slotted Flat Head
ST8554-00 N/A 7.1 N/A 7.1 N/A 2.4 N/A M3.5X0.6 N/A 3.2 N/A 5.5 N/A Steel N/A Slotted Flat Head
Unit of Measure
1 2