S-90934A847 3/4"-10 x 3" SAE J429 Plow Bolts

Plow Bolts

0858FA00030 Plow Bolts
0858FA00030 Plow Bolts

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

Part No.
Part No. 0858FA00030
Equivalent to mcmaster :
90934A847

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 3"
Screw Diameter 0.75"
Countersink Angle 82°

Thread Parameters

Thread Type UNC
Thread Size 3/4"-10
Threading Partially Threaded
Thread Direction Right Hand
Thread Spacing Coarse
Thread Fit Class 2A
Min Thread Length 1 3/4"

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 load-bearing capacity with Grade 8 classification and 150,000 PSI tensile strength for reliable performance in demanding applications
  • Superior corrosion protection through zinc yellow-chromate plating that extends service life in harsh environmental conditions
  • Secure anti-rotation locking provided by the square neck design that prevents bolt turning during installation and operation
  • Optimized thread engagement with UNC coarse threading and Class 2A fit ensuring easy installation and consistent clamping force
  • Enhanced durability from Rockwell C33 hardness that maintains structural integrity under heavy mechanical stress
  • Industry-standard compliance meeting SAE J429 specifications for guaranteed quality and interchangeability
  • Versatile oval head profile with 82° countersink angle for flush mounting in various equipment configurations

Professional Applications & Engineering Value

Engineered for heavy-duty industrial and agricultural applications, these Grade 8 plow bolts deliver exceptional performance where high tensile strength and corrosion resistance are critical. The zinc yellow-chromate plated steel construction provides superior protection against rust and environmental degradation, significantly extending equipment service life in demanding conditions. The partially threaded UNC coarse threading combined with the square neck design ensures secure installation without rotation, maintaining precise alignment in snow plows, earth-moving equipment, and heavy machinery. The oval head with 82° countersink angle allows for flush mounting, reducing snag points while distributing load effectively. These SAE J429 compliant fasteners solve common engineering challenges by providing reliable, high-strength connections that withstand extreme mechanical stress and environmental exposure.

Specification Summary & Compliance

This 3/4"-10 plow bolt features precise Class 2A thread fit with UNC coarse threading standards, ensuring proper engagement and consistent performance. Manufactured to meet SAE J429 specifications for Grade 8 fasteners, it maintains dimensional accuracy with a 3" length, 0.75" screw diameter, and 1.75" minimum thread length. The Rockwell C33 hardness and 150,000 PSI tensile strength guarantee mechanical reliability, while the zinc yellow-chromate plating provides environmental protection. Compliance with industry standards ensures interchangeability and performance consistency across agricultural and industrial applications.

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