Flat nut fasteners are one-piece, self-locking, spring-steel fasteners that replace threaded nuts, lockwashers and spanner washers. On many applications they eliminate time consuming assembly operations. They are fast and easy to apply while providing maximum holding power at minimum cost per fastener. They can never shake loose from vibration, yet can be easily loosened when desired.

In addition to our standard products listed here, we specialize in manufacturing custom designs for unique applications. Our products are horizontally stamped in fourslide machines. Our staff will help you with your design, provide you with pricing and produce a final part print for your approval. Please contact us for production run minimums (sales@e-qual-fast.com).
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ACS #

Item Name

Screw Size

Length (L)

Width (W)

Material Thickness (T)

Flat Nuts Design Variation

Tinnerman #

N/A Flat Nut - 5000 Series N/A 6-32 N/A 0.44 N/A 0.280 N/A 0.017 N/A Std. N/A C07000-632 C7000-632
N/A Flat Nut - 5000 Series N/A 6-32 N/A 0.51 N/A 0.312 N/A 0.017 N/A Std. N/A C00410-632 C410-632
N/A Flat Nut - 5000 Series N/A 6-32 N/A 0.63 N/A 0.375 N/A 0.017 N/A Std. N/A C01321-632 C1321-632
N/A Flat Nut - 5000 Series N/A 6-32 N/A 0.88 N/A 0.375 N/A 0.017 N/A Std. N/A C00112-632 C112-632
N/A Flat Nut - 5000 Series N/A 6-32 N/A 0.88 N/A 0.500 N/A 0.017 N/A Std. N/A C00111-632 C111-632
N/A Flat Nut - 5000 Series N/A 6-32 N/A 1.37 N/A 0.375 N/A 0.017 N/A Std. N/A C01876-632 C1876-632
N/A Flat Nut - 5000 Series N/A 6AB N/A 0.50 N/A 0.312 N/A 0.025 N/A Std. N/A C07000-6 C7000-6
N/A Flat Nut - 5000 Series N/A 6AB N/A 0.87 N/A 0.437 N/A 0.025 N/A Std. N/A C08000-6 C8000-6
N/A Flat Nut - 5000 Series N/A 6A N/A 0.51 N/A 0.312 N/A 0.025 N/A Std. N/A C00410-6A C410-6A
N/A Flat Nut - 5000 Series N/A 8-32 N/A 0.50 N/A 0.312 N/A 0.017 N/A Std. N/A C07000-832 C7000-832
N/A Flat Nut - 5000 Series N/A 8-32 N/A 0.51 N/A 0.312 N/A 0.012 N/A Std. N/A C08601-012 C8601-012
N/A Flat Nut - 5000 Series N/A 8-32 N/A 0.51 N/A 0.312 N/A 0.017 N/A Std. N/A C00420-832 C420-832
N/A Flat Nut - 5000 Series N/A 8-32 N/A 0.63 N/A 0.375 N/A 0.017 N/A Std. N/A C01321-832 C1321-832
N/A Flat Nut - 5000 Series N/A 8-32 N/A 0.88 N/A 0.437 N/A 0.017 N/A Std. N/A C08016-832 C8016-832
N/A Flat Nut - 5000 Series N/A 8-32 N/A 1.00 N/A 0.500 N/A 0.017 N/A Std. N/A C01546-832 C1546-832
N/A Flat Nut - 5000 Series N/A 8-32 N/A 1.38 N/A 0.530 N/A 0.017 N/A Std. N/A C08171-832 C8171-832
N/A Flat Nut - 5000 Series N/A 8AB N/A 0.63 N/A 0.407 N/A 0.028 N/A Std. N/A C07000-8 C7000-8
N/A Flat Nut - 5000 Series N/A 8AB N/A 0.87 N/A 0.470 N/A 0.028 N/A Std. N/A C08002-8 C8002-8
N/A Flat Nut - 5000 Series N/A 8A N/A 0.63 N/A 0.375 N/A 0.031 N/A A N/A C00343-8A C343-8A
N/A Flat Nut - 5000 Series N/A 8A N/A 0.63 N/A 0.375 N/A 0.031 N/A A N/A C09653-8A C9653-8A
N/A Flat Nut - 5000 Series N/A 8A N/A 0.88 N/A 0.375 N/A 0.031 N/A Std. N/A C01075-8A C1075-8A
N/A Flat Nut - 5000 Series N/A 8A N/A 0.88 N/A 0.500 N/A 0.031 N/A Std. N/A C01074-8A C1074-8A
N/A Flat Nut - 5000 Series N/A 8A N/A 1.25 N/A 0.880 N/A 0.031 N/A A N/A C14241-8A
N/A Flat Nut - 5000 Series N/A 8B N/A 0.59 N/A 0.625 N/A 0.028 N/A A N/A C19449-8Z
N/A Flat Nut - 5000 Series N/A 8B N/A 0.87 N/A 0.500 N/A 0.028 N/A Std. N/A C01949-8Z C1949-8Z
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