5/16"-18 x 1 1/4" A307 Grade A Square Head Machine Bolt Low Carbon Steel Zinc Plated Pk 50

PRODUCT SPECIFICATIONSPart #: 0000-114127Fastener Type: Square Head Machine BoltSize Description: 5/16"-18 x 1 1/4"Diameter/Nominal Size: 5/16"Length: 1 1/4"Wrench Size/Across Flats: 0.484-0.500"Width Across Corners: 0.665-0.707"Head Height: 0.186-0.220"Thread Pitch: 18Thread Direction: RightSystem of Measurement: InchGrade: A (2)Material: Low Carbon SteelFinish: Zinc PlatedHead Type: SquareDrive Type: External SquareStandards Met: A307Average Piece Weight: 0.0323000 lbs.Square head bolts, or square head machine bolts offer a large bearing area for positive gripping; primarily used nowadays for aesthetic projects that create a rustic look or to match existing fasteners; comes in both fully threaded and partially threaded pitches. Square head bolts are sometimes selected over hex heads because the head will fit neatly in a channel.

• Please see the specifications in the table below for full details. If you have any questions or doubts, or if your requirements include specific dimensions, please contact us prior to placing your order.
• 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 specifications to which they are manufactured. Specifications allow for tolerances in dimension and shape, which can vary from lot to lot.
• ASMC Industrial Brand fasteners are guaranteed to be of the highest quality and are lot controlled, providing traceability to the manufacturer and raw material.