Welded Steel Tanks for Oil Storage

Bolts up to and including 1 inch diameter: UNC Class 2A fit 2. Nuts for bolts up to and including 1 inch diameter: UNC Class 2B fit 3. Bolts 1.125 inch diameter and larger: 8N Class 2A fit 4. Nuts for bolts 1.125 inch diameter and larger: 8N Class 2B fit b. Anchor bolting shall be ASTM A36 with ASTM A307 heavy hex nuts. Unless otherwise specified on the Data Sheet, Table 2, all anchors shall ... ................
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