Products information 1) Material: 40Cr or 42CrMo 2) Surface: black oxygen, galvanization or as your request 3) Hardness: 36~42HRC 4) Grade: 10.9, 12.9 5) Impact Strength: ≥12~15J (at 25°C) 6) Package: boxes packed in Plywood Cases 7) Application :used for securing cutting edges, snow plow blades, grader blades, motor grader mold boards, bulldozers, loaders, scrapers, skid steers, and excavators.
Our aftermarket Komatsu plow bolts are heavy-duty fasteners specially designed for cutting edges and end bits on dozers, motor graders and wheel loaders. Except Standard Countersunk Square Neck Plow Bolt, we also supply Thickened Head Plow Bolt for high impact mining cutting edges, and supply Extended Shank Plow Bolt for stacked installation of thick cutting edge plus wear overlay.
All of them are compatible with Komatsu OEM part numbers,and widely used in earthmoving, quarrying, mining and road construction. Surface finish options including black oxide, zinc plating and Dacromet coating which can enhance rust & corrosion protection.

We mainly supply 40Cr and 42Crmo Komatsu cutting edge plow bolts. 40Cr material plow bolts( Grade 12.9)can balance tensile strength and toughness well after quenching and tempering, and own good anti-fatigue performance. They are ideal for general heavy-duty earth and gravel jobs, best cost performance. 42CrMo material plow bolts have ultra-high tensile strength, superior wear resistance and fatigue resistance, they are designed for continuous heavy mining operations.
To ensure stable quality ,every batch goes through quenching & tempering heat treatment. We will do hardness sampling inspection, tensile strength, yield strength and metallurgical tests to avoid breakage caused by insufficient heat treatment. Threads will be inspected by thread gauges. Visual inspection plus crack detection for forging defects. Dimensions strictly follow OEM drawing and control tolerance in short range. We can provide Material certificate and heat treatment reports if you need.
Thank you for your interest in our aftermarket Komatsu cutting edge plow bolt. To quote precisely, please share your Komatsu part number, size, quantity and priority material for quotation. I can send you prices and lead time immediately.
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Bolt Diameter |
Part number | Alternative number | Description | Dimension | Length | Thread |
| 1 1/8" | 195-71-52320 | 1957152320 | Plow Bolt | 1-1/8" UNC-7X3-3/4" | 3-3/4" | 7-UNC |
| 195-71-52330 | 1957152330 | Plow Bolt | 1-1/8" UNC-7X4-1/8" | 4-1/8" | 7-UNC | |
| 195-71-52340 | 1957152340 | Plow Nut | 1-1/8" UNC-7 | 7-UNC | ||
| 195-71-52350 | 1957152350 | washer | 1-1/8" | 7-UNC | ||
| 1 1/4” | 195-71-21730 | 1957121730 | Plow Bolt | 1-1/4"UNC-7X5" | 5" | 7-UNC |
| 198-71-21710 | 1987121710 | Plow Bolt | 1-1/4"UNC-7X4" | 4" | 7-UNC | |
| 198-71-21720 | 1987121720 | Plow Bolt | 1-1/4"UNC-7X4-1/2" | 4-1/2" | 7-UNC | |
| 198-71-21730 | 1987121730 | Plow Bolt | 1-1/4"UNC-7X5-1/8" | 5-1/8" | 7-UNC | |
| 195-71-61950 | 1957161950 | Plow Nut | 1-1/4"UNC-7 | 7-UNC | ||
| 195-71-33380 | 1957133380 | washer | 1 1/4" | 7-UNC | ||
| 1 3/8" | 198-71-21850 | 1987121850 | Plow Bolt | 1-3/8"UNC-6X4-9/16" | 4-9/16" | 6-UNC |
| 198-71-21860 | 1987121860 | Plow Bolt | 1-3/8"UNC-6X5-1/2" | 5-1/2" | 6-UNC | |
| 198-71-21870 | 1987121870 | Plow Bolt | 1-3/8"UNC-6X6-1/4" | 6-1/4" | 6-UNC | |
| 198-71-21880 | 1987121880 | Plow Bolt | 1-3/8"UNC-6X6 1/2" | 6-1/2" | 6-UNC | |
| 198-71-21910 | 1987121910 | Plow Nut | 1-3/8"UNC-6 | 6-UNC | ||
| 198-71-21911 | 1987121911 | Plow Nut | 1-3/8"UNC-6 | 6-UNC | ||
| 198-71-21890 | 1987121890 | washer | 1 3/8" | 6-UNC |
Contact: Zoe Shi
Phone: +86-19700710133
Tel: +86-19700710133
Email: order@longwearparts.com
Add: Beilun District, Ningbo, China
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