Need ROPS bolts thread pitch

Jonny4523

Member

Equipment
L4310 HST
Nov 10, 2022
30
2
8
Lafayette, IN
I searched the forum and was surprised that I couldn't find this already.

Can anyone tell me the thread pitch of the bolts that should be used on the ROPS of my L4310? Mine didn't come with the rops bolts and I don't want to pay $200 for a set. Worst case, I can go buy 3-4 different bolts to test. But I figured I'd ask here first,
 

The Evil Twin

Well-known member

Equipment
L2501, LA526,
Jul 19, 2022
2,332
2,210
113
Virginia
If you have a Verneer caliper it's easy enough to measure. The pitch is the distance between the peaks of the thread in millimeters. So a 2.0 would be 2 mm between the peaks from one thread to the next.
A M16 very well could be a 2.0 pitch but likely 1.5.
 
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6869704x4

Well-known member

Equipment
L45TLB, 49 8N, 57 641, RTV-X1120D, Z422
Jun 29, 2011
240
269
63
SE, NM
Can you take a bolt out of somewhere on the tractor and see if it fits?
 

mikester

Well-known member

Equipment
M59 TLB
Oct 21, 2017
3,125
1,609
113
Canada
www.divergentstuff.ca
I have these already. But the ROPS bolt is bigger than M12. I’m going to buy some M16x1.5 and see if they work. I’m surprised nobody knows on here.
If I don't have a thread gauge my first instinct is to get my tape measure or steel ruler to measure a bolt.

If you lost a bolt that's threaded into a boss that can be trickier to measure. Is this your situation?

Usually you will see standard/course pitch threads on a nut/bolt fastener.
 

Jonny4523

Member

Equipment
L4310 HST
Nov 10, 2022
30
2
8
Lafayette, IN
If I don't have a thread gauge my first instinct is to get my tape measure or steel ruler to measure a bolt.

If you lost a bolt that's threaded into a boss that can be trickier to measure. Is this your situation?

Usually you will see standard/course pitch threads on a nut/bolt fastener.
Correct, the bolts were misssing in mine. So I only have the nuts that are welded to the ROPs to go off of. I’ll just have to buy several bolts to try out.
 

19thSF

Active member
Lifetime Member

Equipment
B2650, loader, MMM, pallet forks, tooth bar, rear blade, JD 318 w/plow, JD X350
Mar 1, 2020
398
120
43
Glendale, Rhode Island
I searched the forum and was surprised that I couldn't find this already.

Can anyone tell me the thread pitch of the bolts that should be used on the ROPS of my L4310? Mine didn't come with the rops bolts and I don't want to pay $200 for a set. Worst case, I can go buy 3-4 different bolts to test. But I figured I'd ask here first,
Hello Mikester,

This is probably the size. Maybe you could buy one to try? Good luck with it!

M14x1.5x30

Bob
 
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19thSF

Active member
Lifetime Member

Equipment
B2650, loader, MMM, pallet forks, tooth bar, rear blade, JD 318 w/plow, JD X350
Mar 1, 2020
398
120
43
Glendale, Rhode Island
I searched the forum and was surprised that I couldn't find this already.

Can anyone tell me the thread pitch of the bolts that should be used on the ROPS of my L4310? Mine didn't come with the rops bolts and I don't want to pay $200 for a set. Worst case, I can go buy 3-4 different bolts to test. But I figured I'd ask here first,
This is probably the size. Maybe you could buy one to try? Good luck with it!

M14x1.5x30
 

ruger1980

Active member

Equipment
L4310 w/La682, L225
Oct 25, 2020
331
120
43
CNY
Which bolts are you looking for, the mounting bolts or the ones that couple the 2 halves together? if the latter, parts diagrams show them to be 9/16x1 18UNF. The mounting bolts I am pretty sure they are metrics they tread into the axle housing. I could try to back some out of my cab mounts if needed. But maybe I can tell by just looking and checking the head of the bolt and the length.