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Re: 87 owners help needed on a bolt, thanks
If it helps the "LF" is a stamping for Lang Fasteners who manufactured the bolt. The 3 lines on the face mean it is a grade 5 bolt, and the head style is a "Hex Washer" style bolt.
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1987 R10 Silverado - Rusty But trusty Daily
1984 C10 Custom Deluxe - Newest Project
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