Custom Fastener Fabrication

Earnest Engineering can create custom large diameter hex head cap screws from our blank stock inventory in a matter of hours.


Drop Shipping

Drop shipping from Earnest helps speed delivery times while helping control shipping costs. Anywhere, anytime, in any quantity needed.


O.E. Parts Reference

Search by original equipment part numbers for CAT, Komatsu, CNH, Deere, Volvo, Bobcat, Euclid-Hitachi replacement parts.



Manufactured to a higher hardness and greater strength than Grade 8, Earnest E9 Plow Bolts have a tensile strength of 170,000 psi minimum, exceeding Grade 8 strength levels. Earnest Grade E9-170m Plow Bolts are available in our specially designed #3 Dome Head Plow Bolt, which is a direct replacement to traditional flat style #3 Head Plow Bolts. Making it a superior upgrade when you want to increase durability and add strength.

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Introducing the Earnest Service Guarantee. If we send you the wrong part, enter your order incorrectly, short you a quantity or deliver a priority air shipment late. Not only will we make it right, we'll credit your account $50. More info >