5/16"-18 Heavy Hex Nuts / Low Carbon Steel / Black Oxide
- Steel
- Black Oxide
- 18 TPI · Coarse
- ASME B18.2.2
$82.80
$0.414 / pc
Package of 200
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Net 30 terms for approved accounts. Apply for wholesale →
Product Description
5/16"-18 Heavy Hex Nuts / Low Carbon Steel / Black Oxide
5/16"-18 heavy hex nut in Low Carbon Steel, black oxide finish. For structural connections and larger bearing surfaces.
- CARBON STEEL — strong and inexpensive, but it depends entirely on its plating for corrosion protection
- BLACK OXIDE — a conversion coating that adds almost no dimension, so thread fit is unchanged; it is a mild rust inhibitor when oiled, not a weather coating
- COARSE THREAD (UNC) — the default inch thread — faster to run down, more tolerant of dirt, damage and plating build-up
Frequently Asked Questions
Does Black Oxide finish provide corrosion protection?
Black Oxide provides mild corrosion resistance through a controlled oxidation process. It is dimensionally stable (no plating buildup), will not chip or flake, and is suitable for indoor use. For outdoor or wet environments, additional oil coating or a different finish (zinc, stainless) is recommended.
$82.80
$0.414/pc
Heavy Hex Nuts / Steel / Black Oxide
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5/16"-18 Heavy Hex Nuts / Low Carbon Steel / Black Oxide
SKU: 31NHHB-200
Technical Specifications
Thread Size
5/16"-18
Thread Series
UNC
Thread Pitch
18 TPI
Material
Steel
Finish
Black Oxide
Standard
ASME B18.2.2
Country of Origin
Import
Thickness
19/64"
Nut Type
Heavy Hex
Measurement System
Inch
Width Across Flats
9/16"
SKU
31NHHB-200
https://www.ecomfasteners.com/products/5-16-18-heavy-hex-nuts-steel-black-oxide · Printed