Narrow Results | Earnest Machine Products

Inch
Metric
Unbrako Sockets
OEM
OEM (1,234)

Our OEM reference library allows you to search by orignal equipment part numbers for CAT, Komatsu, CNH, Deere, Volvo, Bobcat and Euclid-Hitachi replacement parts.
Clips and Clamps
Custom

Finish: Black oxide

Part #

Description

Price

Availability

#831151

5/16-18 Case Hardened Hex Serrated Flange Nut Black Oxide w/ Light Oil

Diameter:	0.3125 (5/16)
Length:
Thread:	N/A
Threads:	18
Finish:	Black Oxide

How can we help you solve your most complex fastener needs? Give us a description of the parts(s) quantities, and services needed and a respresentative will get back to you with a quote in 24 hours.

Company Name

Phone Number

Do you have a picture of the part or print?

One file only.
2 MB limit.
Allowed types: gif jpg png svg.

Is this a bolt?

Is it a nut?

Bolt Length

Bolt Diameter

Bolt Thread Length

Bolt Thread Pitch

Nut Thickness

Nut Width Across Flats

If it's not a bolt or a nut, describe the part here

What material is the part made from?

Copper Alloy

Stainless Steel

Will the part require plating?

How many parts do you need to make?

When do you need the part delivered?

Are there any other details you can provide us?