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Designed for high load applications. Countersunk feature allow fastener to be installed flush with sheet surface.
Both UNC and UNF threads available in No. 10 and larger thread sizes. Check for availability of other grip ranges and designs.

Unit of Measure

Thread Size	N/A 5/16-18
Grip Range	N/A .481 - .556 in
Identification Mark	N/A 5 Rad.
A ± .015	N/A 1.250 in
B Ref.	N/A .656 in
C Max.	N/A .104 in
øD + .000 - .004	N/A .413 in
E Max.	N/A .505 in
F + .005 -.000	N/A .120 in
Install Drill Size Ref.	N/A Z
Install Hole Size Min.	N/A .413 in
Install Hole Size Max.	N/A .423 in
Pull Up Factor	N/A .120 in
Weight per 1000	N/A 7.8 lb
Fastening	N/A Uninstalled
Thread Specification	N/A 3B per ASME B1.1
Standard Material	N/A 6053 Aluminum or 6061 Aluminum
Standard Finish	N/A Anodized in accordance with MIL-A-8625, Type II, Class 1 plus lubricant
CAD Supplier	N/A PennEngineering® (Atlas®)
Inventory	N/A {0}

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