S-90580A312 3/4"-10 ASTM A563 Hex Nuts

Hex Nuts

0955FA00003 Hex Nuts
0955FA00003 Hex Nuts

Image may differ from product. See technical specification for details.

Part No.
Part No. 0955FA00003
Equivalent to mcmaster :
90580A312

Basic Information

System of Measurement Inch
Nut Type Hex
Specifications Met ASTM A563

Dimension Parameters

Width 1 1/4"
Height 47/64"

Thread Parameters

Thread Type UNC
Thread Size 3/4"-10
Thread Direction Right Hand
Thread Spacing Coarse
Thread Fit Class 2B

Head Parameters

Drive Style External Hex
Hex Nut Profile Extra Wide

Material & Strength Parameters

Material Black-Oxide Steel
Fastener Strength Grade/Class ASTM Grade C

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/10/2022, 224 SVHC) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Enhanced load distribution with an extra wide hex profile, reducing surface pressure and preventing damage in heavy-duty applications.
  • Superior corrosion resistance from the black-oxide steel finish, extending service life in harsh industrial environments.
  • High tensile strength meeting ASTM Grade C standards, ensuring reliable performance under extreme mechanical stress.
  • Easy installation and removal with a coarse UNC thread and Class 2B fit, providing smooth engagement and reducing assembly time.
  • Compliance with environmental regulations including RoHS 3 and REACH, supporting sustainable and safe manufacturing practices.
  • Broad compatibility with inch-system components and external hex drive tools, simplifying integration into existing setups.
  • Durable construction per ASTM A563 specifications, offering long-term reliability for repetitive or high-vibration uses.

Professional Applications & Engineering Value

This 3/4"-10 UNC hex nut is engineered with black-oxide steel and an extra wide profile to address common industrial challenges like uneven load distribution and fastener failure in high-stress assemblies. The coarse UNC thread and Class 2B thread fit ensure quick, secure fastening, minimizing the risk of cross-threading in time-sensitive operations such as machinery construction, structural frameworks, and automotive systems. Its robust design, compliant with ASTM A563, provides consistent performance in applications requiring heavy-duty fasteners, while the corrosion-resistant finish enhances durability in outdoor or corrosive settings, reducing maintenance costs and downtime.

Specification Summary & Compliance

This hex nut features a 3/4"-10 UNC coarse thread with Class 2B thread fit for precise dimensional accuracy, manufactured in accordance with ASTM A563 and ASTM Grade C strength requirements. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use.

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