S-90934A841 3/4"-10 x 2" SAE J429 Plow Bolts

Plow Bolts

0858FA00027 Plow Bolts
0858FA00027 Plow Bolts

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

Part No.
Part No. 0858FA00027
Equivalent to mcmaster :
90934A841

Basic Information

System of Measurement Inch
Plow Bolt Trade Number No. 3
Specifications Met SAE J429

Head Parameters

Head Type Oval
Head Diameter 1.2"
Head Height 0.691"
Oval Head Profile Standard
Oval Top Height 0.11"

Neck & Shank Parameters

Neck Type Square
Neck Width 0.77"

Dimension Parameters

Length 2"
Screw Diameter 0.75"
Countersink Angle 82°

Thread Parameters

Thread Type UNC
Thread Size 3/4"-10
Threading Fully Threaded
Thread Direction Right Hand
Thread Spacing Coarse
Thread Fit Class 2A

Material & Strength Parameters

Material Zinc Yellow-Chromate Plated Steel
Fastener Strength Grade/Class Grade 8
Hardness Rockwell C33
Tensile Strength 150000 psi
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Exceptional strength for heavy loads with Grade 8 classification and 150,000 psi tensile strength, ensuring reliable performance in demanding applications.
  • Superior corrosion resistance from zinc yellow-chromate plating, extending service life in harsh agricultural and industrial environments.
  • Secure anti-rotation design featuring a square neck that prevents spinning during installation and operation.
  • Optimized thread engagement with UNC coarse threading and Class 2A fit for quick assembly and consistent fastening.
  • Enhanced durability with Rockwell C33 hardness, resisting wear and deformation under stress.
  • Full threading versatility allowing adjustment along the entire 2" length for flexible mounting depths.
  • Standard-compliant reliability meeting SAE J429 specifications, ensuring quality and interchangeability.

Professional Applications & Engineering Value

This Grade 8 plow bolt is engineered to address critical challenges in agricultural and industrial equipment, where vibration, heavy impact, and exposure to moisture are common. The zinc yellow-chromate plated steel construction provides a robust barrier against rust, significantly reducing maintenance downtime. The square neck design locks securely into mating parts, preventing rotation that can loosen standard fasteners under dynamic loads. With fully threaded UNC coarse spacing and Class 2A thread fit, it ensures rapid installation and reliable torque performance in assemblies like plow blades, earth-moving machinery, and heavy-duty structural frames. Its high tensile strength and hardness make it ideal for applications requiring repeated disassembly and reassembly without thread wear.

Specification Summary & Compliance

This plow bolt features precise Class 2A thread fit with UNC coarse thread (3/4"-10 size) and complies with SAE J429 standards for mechanical properties. Dimensions include a 2" length, 1.2" oval head diameter, and 0.77" square neck width, with an 82° countersink angle. The fastener is manufactured from steel with a zinc yellow-chromate finish, supporting RoHS and REACH compliance for environmental safety in industrial use.

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