PICTURES ARE REPRESENTATIVE OF ITEM, BUT ARE NOT OF THE ACTUAL ITEM. Product dimensions, finish, head markings, thread length, stamping shape or forging shape, etc., may differ from picture. Products are guaranteed to meet the specs to which they are manufactured. Specs allow for tolerances in dimension and shape, which can vary from lot to lot. Please read the specifications in the table below before buying. If you have any questions, or if your requirements include specific dimensions, please contact us before buying.
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PRODUCT SPECIFICATIONS
Part #: 0000-182356
Fastener Type: 12-Point Flange Screw
Size Description: 5/16-18 x 1/2
Diameter/Nominal Size: 5/16"
Length: 1/2"
Wrench Size/Across Flats: 0.306-0.315"
Head Height: 0.312"
Flange Diameter: 0.457-0.469"
Flange Thickness: 0.099-0.199"
Thread Pitch: 18
Thread Pitch Type: Coarse
Thread Direction: Right
System of Measurement: Inch
Grade: 170 KSI Alloy Steel (Grade 9)
Material: Alloy Steel
Finish: Thermal Black Oxide
Head Type: 12-Point with Flange
Drive Type: External 12-Point
Average Piece Weight: 0.0180000 lbs.
12-Point flange screws, also known as Ferry Bolts are high-strength fasteners where the flange diameter and head thickness of the 12-Point Flange Screw are equivalent to the head dimensions of a socket head cap screw, thus permitting the 12-Point Flange Screw to be a replacement for any application that calls for a socket head cap screw. The 12-point head design means that this screw can be tightened with a 12-point socket wrench which allows higher torques to be applied as compared to a standard internal hex drive socket head cap screw. The head or wrench size is the same as the body size.
