Flange Bolt - Flanged Indented Hex Head - Black Phosphate Grade 8 Steel - 5/16"-18 Thread - 3-1/2" Long - Pack of 10

USA Sealing
Item #
Mfr. Model # ZBOLT-1285

Flange bolts are also known as washer bolts. The hex head washer has an external hex head with a flange attached underneath the head which creates a large surface connection area. Hex heads protrude above the surface. Indentation on the surface of the head is preferred for applications involving power-driving tools. The external hex drive is designed to be used with a ratchet. Black phosphate steel offers mild corrosion resistance.

More Information
Body Width 0.310"
Body Width Tolerance (-0.003" to +0.003")
Bolt Subtype Standard
Bolt Type Flange
Brand Name USA Sealing
Brand Part Number ZBOLT-1285
Drive Style External hex
Finish Black Phosphate
Flange Thickness 0.050"
Flange Width 0.680"
Grade Grade 8
Head Height 0.320"
Head Subytype Flanged
Head Type Indented Hex
Head Width 1/2"
Length 3-1/2"
Material Steel
Min Thread Length 0.875"
Pack Quantity 10
Specifications Met IFI-111, SAE J429
System of Measurement Inch
Tensile Strength 150,000 psi
Thread Direction Right
Thread Size 5/16"-18
Thread Spacing Coarse
Thread Type UNC
Threading Partially Threaded
$23.20 / pack of 10

Expected to ship Tue. Dec 19