Monroe
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Since all of our flat nuts are composed of spring steel, vibration will not cause them to loosen. They are simple to install and remove without the use of any tools thanks to their self-locking construction. They also cost less than the majority of substitute fasteners. If there is a lack of available space, flat nuts are an excellent choice. Some additional benefits include: withstands vibration, provides tension without causing damage, eliminates the need for lock washers and easy installation and removal.

Available for sheet-metal screw sizes #4A to #14A and machine screw sizes 4-36 to 5/8-11

Various styles, including: Rectangular, Flat or arched & Ends turned up.

Various finishes, including: Soluble oil, Phosphate & oil, Phosphate & water-based paint, Zinc electroplate & Water-based zinc coating.

flat-nut-picture
Unit of Measure
1 2 

Item #

Screw Size

Impression Type

Design Varation

A Length

B Width

T Mat’l. Thk.

Quantity
FN7-436 N/A 4-36 N/A Conical N/A Standard N/A 0.38 N/A 0.25 N/A 0.012
DCS-112 N/A 4-36 N/A Conical N/A Standard N/A 0.38 N/A 0.25 N/A 0.012
FN7-6A N/A 6A N/A Conical N/A Standard N/A 0.50 N/A 0.31 N/A 0.025
FN7-632 N/A 6-32 N/A Conical N/A Standard N/A 0.44 N/A 0.25 N/A 0.017
FN7-8A N/A 8A N/A Conical N/A Standard N/A 0.63 N/A 0.44 N/A 0.028
FN7-832 N/A 8-32 N/A Conical N/A Standard N/A 0.50 N/A 0.31 N/A 0.017
FN7-10A N/A 10A N/A Conical N/A Standard N/A 0.75 N/A 0.50 N/A 0.030
DCS-140 N/A 10A N/A Conical N/A Standard N/A 0.88 N/A 0.38 N/A 0.030
DCS-464 N/A 10A N/A Prong N/A Standard N/A 0.88 N/A 0.38 N/A 0.030
DCS-340 N/A 10AB N/A Prong N/A Standard N/A 0.65 N/A 0.38 N/A 0.020
DCS-465 N/A 10B(Z) N/A Prong N/A Standard N/A 0.88 N/A 0.38 N/A 0.030
DCS-463 N/A 10B(Z) N/A Prong N/A Ends turned up N/A 0.88 N/A 0.50 N/A 0.030
FN7-1024 N/A 10-24 N/A Conical N/A Standard N/A 0.65 N/A 0.38 N/A 0.020
FN8-1024 N/A 10-24 N/A Prong N/A Standard N/A 0.65 N/A 0.38 N/A 0.020
DCS-116 N/A 10-24 N/A Conical N/A Standard N/A 0.64 N/A 0.38 N/A 0.020
DCS-445 N/A 10-24 N/A Conical N/A Standard N/A 0.65 N/A 0.50 N/A 0.020
FN7-1032 N/A 10-32 N/A Conical N/A Standard N/A 0.65 N/A 0.38 N/A 0.017
DCS-1165 N/A 12A N/A Conical N/A Standard N/A 0.75 N/A 0.50 N/A 0.035
FN7-14A N/A 14A N/A Conical N/A Standard N/A 0.88 N/A 0.56 N/A 0.037
FN8-14A N/A 14A N/A Prong N/A Standard N/A 0.88 N/A 0.56 N/A 0.037
FN7-1420 N/A 1/4-20 N/A Conical N/A Standard N/A 0.75 N/A 0.50 N/A 0.025
FN8-1420 N/A 1/4-20 N/A Prong N/A Standard N/A 0.75 N/A 0.50 N/A 0.025
DCS-327 N/A 1/4-20 N/A Prong N/A No arch in base N/A 0.75 N/A 0.50 N/A 0.025
DCS-414 N/A 1/4-20 N/A Prong N/A Standard N/A 1.37 N/A 0.60 N/A 0.025
DCS-1167 N/A 5/8-11 N/A Prong N/A Standard N/A 1.45 N/A 1.00 N/A 0.017
Unit of Measure
1 2