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Unconditional Satisfaction GuaranteeNo Shipping Fees Above 302 Months to Decide. Returns Simplified.Serrated Hex Washer Head Flange Bolt: This is an un-slotted hex-washer face bolt, but with a thicker flange and serrations on the bearing surface side. Flange bolts are used in applications where loosening is possible due to stresses such as vibration. The serrations grip to the bearing surface so more torque is needed to loosen them than to tighten the bolt. The flange also provides more strength than a standard bolt and eliminates the need for a lock washer or locknut. The length of a hex bolt is determined by measuring from under the head of the bolt to the base of the threads.
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| Grade: | Grade 5 | Diameter: | 5/16 |
| Plating: | Zinc | Thread Count: | 18 |
| Material: | Steel | Thread Length: | Fully Threaded |
| Head Style: | Hex Flange | Socket Size: | 1/2 |
| Proof Load, Lb.: | 3,900 | Tensile Strength, Lb.: | 4,450 |
SAE J429 Proof Load and Tensile Strength Requirements Above
Length is Measured from Under the Head to the Bottom of the Bolt
