Started some work last year on the motor on my L120, didn't keep track of the bolts to reattach the intake on both sides.... Grrr, just get a ziploc baggie... anyway everything is basically a 10mm head but a 1/4-20 bolt seems to fit really well. I'd like to keep everything oem but not if I have to buy $4 to $7 bolts. Any suggestions.
Briggs & Stratton Model 406777 - replacement bolts
- Thread starter JohnnyAce
- Start date
StarTech
Lawn Royalty
- Joined
- Feb 19, 2020
- Threads
- 110
- Messages
- 12,223
Well welcome to our world of specialize screws. This why shops have to keep secure placement of removed fasteners. We don't like over paying for these either. Even as a dealer these are high to get.
Double check the threading as these should SAE screws with SAE hex. IF metric only fits and the 3/8 doesn't then they are likely threaded metric.
First the hex should be a 3/8" as that is what they normally used on these engine with the flange head screws. On top of that these screw heads have a T30 slot which makes easier access to the screws for removal and installation. They also a Red loctite patch so they don't vibrate out.
But I have not found any after market that both the T30 and 3/8" hex that are Flanged. I have to add Blue Loctite to the threads as the Red I have is too strong for standard hand tool removal.
699816
The lowest price per I found is
But if threads are 1/4-20 then you should able it in a flange screw locally, just won't have the T30 slot.
Double check the threading as these should SAE screws with SAE hex. IF metric only fits and the 3/8 doesn't then they are likely threaded metric.
First the hex should be a 3/8" as that is what they normally used on these engine with the flange head screws. On top of that these screw heads have a T30 slot which makes easier access to the screws for removal and installation. They also a Red loctite patch so they don't vibrate out.
But I have not found any after market that both the T30 and 3/8" hex that are Flanged. I have to add Blue Loctite to the threads as the Red I have is too strong for standard hand tool removal.
699816
The lowest price per I found is
But if threads are 1/4-20 then you should able it in a flange screw locally, just won't have the T30 slot.
- Joined
- Sep 7, 2024
- Threads
- 8
- Messages
- 625
Check the drawers or box where you put your tools at. Likely put them away for "safe keeping" (keeps you from finding them when you need them.) LOL