Best Lock Bolts AI pick
Chosen by an AI model from its trained knowledge, with its reasoning.
AI pick (line): Huck BobTail
It is a widely used swaged-collar lockbolt line that resists loosening under vibration, with a lighter installation tool than traditional pintail lockbolts.
Not for: DIY users without a matching Huck installation tool, and anyone looking for a door slide bolt or barrel bolt.
What the AI looks for in Lock Bolts
- Grip range
- The total thickness of the materials being joined must fall inside the bolt's specified grip range. Outside the grip range, the collar will not swage correctly and the joint has no reliable clamp force.
- Tool and nose assembly match
- The bolt diameter and type must match the nose assembly on the installation tool. Lockbolts cannot be installed or inspected properly without the matching tooling.
- Hole size
- Drill holes to the manufacturer's specified diameter and tolerance. Oversized holes reduce shear capacity and allow the joint to work loose.
- Collar and pin material pairing
- Use the specified collar for the pin's material and grade. Mismatched collars swage poorly and can cause galvanic corrosion.
Brands that matter
- Huck: The original lockbolt maker, now under Howmet Fastening Systems.
- Avdel: Stanley Engineered Fastening brand that makes structural lockbolts and blind bolts.
What to avoid
- Buying lockbolts without confirming you have or can rent the matching installation tool
- Reusing collars or pins after a bad install
Questions
Is a lockbolt the same as a slide or barrel bolt for a door?
No. A lockbolt is a permanent swaged structural fastener. Door slide bolts are latches sold as door hardware.