PRECISION MINIATURE HARDWARE
Hex Nuts — 4140 Steel
Miniature hex nuts with scale-sized flats, made to match our hex bolts thread for thread. Thread sizes 1-72, 2-56, 3-48, 4-40, 5-40, 6-32, 8-32, 10-32, sold in packs of 25 or 100.
Select Size
All parts sold in packs of 25 or 100.
Ships from the U.S. Packaging optimized for small-part orders.
ASSORTMENT PACK
Complete Hardware Assortment
One pack of every currently available hardware SKU, discounted 15%.
Hex Nut sizes and specifications
| Thread size | Hex across flats | Nut height |
|---|---|---|
| 1-72 | 7/64" | 0.055" |
| 2-56 | 1/8" | 0.064" |
| 3-48 | 5/32" | 0.075" |
| 4-40 | 11/64" | 0.084" |
| 5-40 | 3/16" | 0.093" |
| 6-32 | 7/32" | 0.125" |
| 8-32 | 1/4" | 0.125" |
| 10-32 | 9/32" | 0.160" |
Material: 4140 Steel
4140 is a chromium-molybdenum alloy steel. It is stronger and tougher than the mild steel used in most small hardware, so fine threads hold up to repeated assembly.
Pricing
Price depends on thread size and length. Choose a size above to see its price. Ships from the U.S.
Where to use them
Pair them with our hex bolts, or use them on studs and threaded rod where a full-size machine would show a nut. Each nut uses the same hex size as the matching bolt head, so assemblies look consistent.
Also available: Hex Bolts in 4140 Steel.