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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-1_large
Unit of Measure
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Item #

OD

Head Diameter

Shank DIA

Male Thread

Head Length

Thread Length

Knurl TPI

Material

Style

Quantity
ST3316-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3317-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3318-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3319-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3320-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3321-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3322-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3323-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3324-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3325-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3326-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3327-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3328-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3329-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3330-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3331-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3332-00 N/A 3/4 N/A 3/4 N/A .235 N/A 5/16-18 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3333-00 N/A 9/16 N/A 9/16 N/A .235 N/A 5/16-24 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3334-00 N/A 9/16 N/A 9/16 N/A .235 N/A 5/16-24 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3335-00 N/A 9/16 N/A 9/16 N/A .235 N/A 5/16-24 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3336-00 N/A 9/16 N/A 9/16 N/A .235 N/A 5/16-24 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3337-00 N/A 9/16 N/A 9/16 N/A .235 N/A 5/16-24 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3338-00 N/A 9/16 N/A 9/16 N/A .235 N/A 5/16-24 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3339-00 N/A 9/16 N/A 9/16 N/A .235 N/A 5/16-24 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
ST3340-00 N/A 9/16 N/A 9/16 N/A .235 N/A 5/16-24 N/A 1/4 N/A 3/8 N/A 30 N/A Steel N/A Large Head
Unit of Measure
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