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Plow Bolts

Plow Bolts

Plow bolts are used to attach cutting edges to plows, grader blades, dozer blades, scraper blades and other earthmoving equipment. They have a flush countersunk-style head so the cutting edge sits flat against the ground, and a square neck under the head that locks the bolt against rotation when the nut is tightened from behind.

Because earthmoving applications generate enormous shock loads and abrasive wear, plow bolts are specified at Grade 9 — the highest commonly available imperial bolt grade. They ship plain black uncoated; the head sits below the wear surface so any finish would wear off in service.

MATERIAL AND GRADE

Plain Black Uncoated Grade 9 High Tensile — The only specification stocked. Higher tensile than Grade 8, designed for cyclical shock loading and abrasive service.

Sizes: 5/8" through 1-3/8" UNC. 5/8", 3/4", 7/8" and 1" are the busiest.

Thread system: UNC (Unified National Coarse) — the standard for North American earthmoving equipment, which dominates the Australian market.

Pair plow bolts with matching Grade 9 plow nuts. Refer to our Technical PDF's Library for tightening torque — these bolts hold high preload to keep the cutting edge against the moldboard or blade through the wear cycle.

WHY AUSTRALIA TRUSTS BOLT & NUT

With 15+ years selling fasteners online from Brisbane, we hold over 25,000 stock lines and 200 million pieces — 98.75% of online orders placed before 1pm leave same day. Save more as you buy more — we offer up to 13 price breaks plus 3 spend-tier discounts. Read our customer reviews or get in touch if you need help picking the right bolt.

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6 Items found

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    5/8" x 11 TPI UNC Coarse Plain Black Uncoated Raised Head Plow Bolt Only High Tensile Hobson
    5/8" x 11 TPI UNC Coarse Plain Black Uncoated Raised Head Plow Bolt Only High Tensile Hobson
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    3/4" x 10 TPI UNC Coarse Plain Black Uncoated Raised Head Plow Bolt Only High Tensile Hobson
    3/4" x 10 TPI UNC Coarse Plain Black Uncoated Raised Head Plow Bolt Only High Tensile Hobson
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    Length Overall Including Head

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    7/8" x 9 TPI UNC Coarse Plain Black Uncoated Raised Head Plow Bolt Only High Tensile Hobson
    7/8" x 9 TPI UNC Coarse Plain Black Uncoated Raised Head Plow Bolt Only High Tensile Hobson
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    Length Overall Including Head

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    1" x 8 TPI UNC Coarse Plain Black Uncoated Raised Head Plow Bolt Only High Tensile Hobson
    1" x 8 TPI UNC Coarse Plain Black Uncoated Raised Head Plow Bolt Only High Tensile Hobson
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    1-1/4" x 7 TPI UNC Coarse Plain Black Uncoated Raised Plow Bolt Only High Tensile Hobson
    1-1/4" x 7 TPI UNC Coarse Plain Black Uncoated Raised Plow Bolt Only High Tensile Hobson
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per page

Countersunk square-neck bolts for attaching cutting edges to plows, grader blades, dozer blades and other earthmoving equipment. Grade 9 plain black uncoated, UNC sizes.

TECHNICAL RESOURCES

Key charts and specification sheets: Specs - Plow Bolt UNC BSW Coarse High Tensile Grade 9 Plain Black · Imperial vs Metric Strength Chart · Bolts Markings

For the full library, see our Technical PDF's Library.

Filter by :
Filter By
Category
System of Measurement
  1. Imperial 6 items
Size
  1. 5/8" 1 item
  2. 3/4" 1 item
  3. 7/8" 1 item
  4. 1" 1 item
  5. 1-1/4" 1 item
  6. 1-3/8" 1 item
Size & Thread Pitch
  1. 5/8" x 11 TPI UNC 1 item
  2. 3/4" x 10 TPI UNC 1 item
  3. 7/8" x 9 TPI UNC 1 item
  4. 1" x 8 TPI UNC 1 item
  5. 1-1/4" x 7 TPI UNC 1 item
  6. 1-3/8" x 6 TPI UNC 1 item
Length
  1. 1-1/2" 1 item
  2. 1-3/4" 1 item
  3. 2" 2 items
  4. 2-1/4" 3 items
  5. 2-1/2" 3 items
  6. 2-3/4" 4 items
  7. 3" 4 items
  8. 3-1/4" 3 items
  9. 3-1/2" 4 items
  10. 3-3/4" 3 items
  11. 3-7/8" 1 item
  12. 4" 5 items
  13. 4-1/8" 1 item
  14. 4-1/4" 1 item
  15. 4-1/2" 5 items
  16. 5" 4 items
  17. 5-1/2" 2 items
  18. 6" 2 items
Material / Finish
  1. Plain Black Uncoated 6 items
Class / Grade
  1. High Tensile Grade 9 6 items
Corrosion Protection Level
  1. Low 6 items
Head Diameter Range
  1. 24.70 - 27.00mm 1 item
  2. 29.35 - 34.50mm 1 item
  3. 34.40 - 36.00mm 1 item
  4. 39.00 - 41.00mm 1 item
  5. 50.00 - 54.00mm 1 item
  6. 60.70 - 62.00mm 1 item
Drive Type
  1. Hex 6 items
OEM Part Number Guide
  1. 1J-2034 | 821629 1 item
  2. 1J-3527 | 821625 1 item
  3. 1J-4948 | 821619 1 item
  4. 1J-5607 | 821611 1 item
  5. 2J-2548 | 821417 1 item
  6. 2J-5458 | 821423 1 item
  7. 3F-5108 | 821007 1 item
  8. 4F-0138 | 821213 1 item
  9. 4F-0253 | 821225 1 item
  10. 4F-3653 | 821003 1 item
  11. 4F-3654 | 821005 1 item
  12. 4F-3656 | 821009 1 item
  13. 4F-3657 | 821011 1 item
  14. 4F-3658 | 821013 1 item
  15. 4F-3664 | 821001 5 items
  16. 4F-3665 | 821017 1 item
  17. 4F-3671 | 821021 1 item
  18. 4F-3672 | 821205 1 item
  19. 4F-4042 | 821613 1 item
  20. 4F-7827 | 821207 1 item
  21. 4J-9058 | 821615 1 item
  22. 4J-9208 | 821617 1 item
  23. 5F-8933 | 821219 1 item
  24. 5J-2409 | 821413 1 item
  25. 5J-4771 | 821211 1 item
  26. 5J-4772 | 821409 1 item
  27. 5J-4773 | 821209 1 item
  28. 5P-8136 | 821621 1 item
  29. 5P-8361 | 822029 1 item
  30. 5P-8823 | 822022 1 item
  31. 6F-0196 | 821411 1 item
  32. 6V-6535 | 822019 1 item
  33. 6V-8360 | 822025 1 item
  34. 8J-2935 | 821415 1 item
  35. 02091-1122 | 821229 1 item
  36. 02091-1201 | 822021 1 item
  37. 175-71-11471 | 821429 1 item
  38. 821025 1 item
  39. 821215 1 item
  40. 821221 1 item
  41. 821407 1 item
  42. 821421 1 item
  43. 821633 1 item
  44. 822020 1 item
  45. 822037 1 item
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