Question

1. If a bolt is size 1/2" or larger, then its corresponding wrench size should be____ larger than the bolt size

A. 1/8"
B. 3/16"
C. 1/4"
D. 5/16"

1. If a bolt is size 7/16" or smaller, then its corresponding wrench size should be ___ larger than the bolt size

A. 1/8"
B. 3/16"
C. 1/4"
D. 5/16"

Answer 1

Answer:

1. C. 1/4"
2. B. 3/16"

Explanation:

1. For hex bolts, lag bolts, and square bolts, the wrench size is 1/4" larger than the bolt size for 1/2" and 9/16" bolts. For 5/8" bolts and larger, the wrench size is 50% larger than the bolt size.

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2. For 7/16" bolts, the wrench size is 5/8", so is 3/16" larger than the bolt. This holds down to 1/4" bolts, where the wrench size may be 3/8" or 7/16".