- LEAKPROOF: Used to seal bolt holes to prevent leaking
- SAFE FOR BLIND FASTENING: Can be used in blind and/or closed-end holes
- 5/16 in.-18 USS COARSE THREAD: Matches bolts or rods of a coarse 5/16 in.-18 thread size
- STRONG, STURDY, RELIABLE: Made of high-quality rubber and steel parts
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