Broken bolts on front axle

[true temper]

The problem is the bolts are junk they have a very sharp stress point under the head. I had the same issue.

 

[dirtymartini]

this thread reminds me, I need to replace my lost set of LEFT HAND drill bits! At least an envelope of #10 or #11. ;-)

Thats something I have meant to add to my tool collection for some time. I tried borrowing but none of my friends had any.

 

[dirtymartini]

The problem is the bolts are junk they have a very sharp stress point under the head. I had the same issue. View attachment 3260448

For sure. I bought some higher quality replacements.

 

[5030]

Left hand twist drills are commonly referred to as 'die reclaim drills'. I never purchase any drill that isn't made here which limits my drills to Cleveland Twist or Chicago Latrobe or Triumph and my left hand drills are all Tungsten Carbide. You get what you pay for usually. Using the 'Howie' method, I've never encountered any broken bolt or stud I cannot remove but your mileage may vary.

 

[CPTKILLER]

My experience with fasteners demonstrates that most commercial graded fasteners are below the spec’s in their grade. I was in a test in graduate school at Texas A&M and checked grade 5 & grade 8 fasteners with hardness testing and tensile testing. Everyone was below the standard.

Later in industry, I ran into this with run of the mill commercial fasteners. The best solution was to specify particular brands and hardness test them for compliance for important applications.

I fought our buyers because they tended to choose Chinese suppliers with predictably bad results.

I was a manufacturing engineer manager with a Japanese forklift company. We were very careful with correct torque on most assemblies.

As a result, the warranty issues were nil during my time there.

 

[CalG]

Left hand twist drills are commonly referred to as 'die reclaim drills'. I never purchase any drill that isn't made here which limits my drills to Cleveland Twist or Chicago Latrobe or Triumph and my left hand drills are all Tungsten Carbide. You get what you pay for usually. Using the 'Howie' method, I've never encountered any broken bolt or stud I cannot remove but your mileage may vary.

screw machine bits come in both hands.

 

[5030]

Most likely. I use screw machine length twist drills in my mag drill because of the limited quill travel.

 

[CalG]

Thats something I have meant to add to my tool collection for some time. I tried borrowing but none of my friends had any.

https://knkut.com/drill-bits/left-hand

just an inspiration, not a recommendation ;-)

 

[ultrarunner]

Left hand twist drills are commonly referred to as 'die reclaim drills'. I never purchase any drill that isn't made here which limits my drills to Cleveland Twist or Chicago Latrobe or Triumph and my left hand drills are all Tungsten Carbide. You get what you pay for usually. Using the 'Howie' method, I've never encountered any broken bolt or stud I cannot remove but your mileage may vary.

I bought mine years ago from the Snap-On or Mac jobber… way before online shopping

 

[ultrarunner]

My experience with fasteners demonstrates that most commercial graded fasteners are below the spec’s in their grade. I was in a test in graduate school at Texas A&M and checked grade 5 & grade 8 fasteners with hardness testing and tensile testing. Everyone was below the standard.

Later in industry, I ran into this with run of the mill commercial fasteners. The best solution was to specify particular brands and hardness test them for compliance for important applications.

I fought our buyers because they tended to choose Chinese suppliers with predictably bad results.

I was a manufacturing engineer manager with a Japanese forklift company. We were very careful with correct torque on most assemblies.

As a result, the warranty issues were nil during my time there.

I tested bolts in material lab and the good old Rockford were the best value for the buck… USA 1980’s