10.9 Grade Automotive Bolt

  • High-strength, durable, and reliable for automotive use.
  • Meets industrial standards with high torque and load capacity.
  • Available in various sizes from 1/4″ to 1-1/2″.
Category: Bolts
MOQ: 10000pcs
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M8 Square Bolt tech drawing with labeled dimensions, side/top views, and specs—ideal for comparing with slotted screws.

(inch) 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2
P 20 28 32 18 24 32 16 24 32 14 20 28 13
ds max 0.26 0.324 0.388 0.452 0.515 0.642 0.768 0.895 1.022 1.149 1.277 1.404 1.531
ds min 0.237 0.298 0.36 0.421 0.482 0.605 0.729 0.852 0.976 1.098 1.223 1.345 1.47
s max 0.375 0.5 0.562 0.625 0.75 0.938 1.125 1.312 1.5 1.688 1.875 2.062 2.25
s min 0.362 0.484 0.544 0.603 0.725 0.906 1.088 1.269 1.45 1.631 1.812 1.994 2.175
e max 0.53 0.707 0.795 0.884 1.061 1.326 1.591 1.856 2.121 2.386 2.652 2.917 3.182
e min 0.498 0.665 0.747 0.828 0.995 1.244 1.494 1.742 1.991 2.239 2.489 2.738 2.986
k max 0.188 0.22 0.268 0.316 0.348 0.444 0.524 0.62 0.684 0.78 0.876 0.94 1.036
k min 0.156 0.186 0.232 0.278 0.308 0.4 0.476 0.568 0.628 0.72 0.812 0.872 0.964
r max 0.03 0.03 0.03 0.03 0.03 0.06 0.06 0.06 0.06 0.06 0.09 0.09 0.09
r min 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03

 

The 10.9 Grade Automotive Bolt is a high-strength fastening solution designed for the automotive industry, ensuring durability and reliable performance across various applications.

Key Features:

  • Manufactured to meet industrial standards for high torque and load capacity
  • Suitable for critical automotive applications requiring robust fastening
  • Available in multiple sizes from 1/4 inch to 1-1/2 inch diameter
  • Designed with optimal thread dimensions for secure fastening
  • Known for excellent tensile strength and corrosion resistance

Specifications:

  • Sizes range from 1/4 inch to 1-1/2 inch (including 5/16, 3/8, etc.)
  • P (pitch) values vary from 13 to 32 depending on size
  • Maximum and minimum dimensions provided for diameter (ds), thread thickness (s), depth (e), thread height (k), and fillet radius (r)
  • Grade 10.9 for high-performance automotive applications

The 10.9 Grade Automotive Bolt offers superior strength and reliability, making it an essential component for automotive distributors seeking durable, high-quality fasteners suited for demanding conditions.

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