1/4"-20 x 3/4" Machine Screws / Phillips / Flat Undercut Head / Low Carbon Steel / Black Oxide / Made in USA
- Steel
- Black Oxide
- 20 TPI · Coarse
- ASME B18.6.3
$185.42
$0.464 / pc
Package of 400
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Product Description
1/4"-20 x 3/4" Machine Screws / Phillips / Flat Undercut Head / Low Carbon Steel / Black Oxide / Made in USA
🇺🇸 Made in USA
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.
$185.42
$0.464/pc
Machine Screws / Phillips / Flat Undercut Head
Family: MPUB
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1/4"-20 x 3/4" Machine Screws / Phillips / Flat Undercut Head / Low Carbon Steel / Black Oxide / Made in USA
SKU: 1412MPUB-400
Technical Specifications
Thread Size
1/4"-20
Thread Series
UNC
Thread Pitch
20 TPI
Thread Coverage
Full Thread
Length
3/4"
Material
Steel
Finish
Black Oxide
Drive
Phillips
Head Style
Flat Undercut Head
Standard
ASME B18.6.3
Country of Origin
USA
Point Type
Machine (Blunt)
Head Diameter (in)
0.442–0.477
Measurement System
Inch
Head Height (in)
0.092–0.107
SKU
1412MPUB-400
https://www.ecomfasteners.com/products/1-4-20-x-3-4-machine-screws-phillips-flat-undercut-head-steel-black-oxide · Printed