Products Description
ItemThread Forming Screw
TypeF
Head TypeFlat
System of MeasurementInch
Thread Size1/4-20
Length1 in
MaterialHardened Steel
FinishBlack Oxide
Drive TypeTorx
Driver SizeT27
Head Dia.0.452 in
Head Height0.153 in
Head Angle (Deg.)82
ApplicationAluminum, Brass, Cast Iron, For Use In Heavy Gauge Sheet Metal, Zinc, and Lead Die Castings, and Plastic
Package Quantity2,500
By design, Torx head screws resist cam-out better than Phillips head or slot head screws. Whereas the tendency of Phillips drivers to cam out under excessive torque has been listed as a feature preventing damage to the screw-head or driver, Torx heads were designed to prevent cam-out.
A Torx screw head always has a six-pointed lobe, or star, design on the top, never any more points or less. Although a hex screw also has a six-sided indentation on top, it's an entirely different shape and design, featuring a hexagon or stop-sign shape.
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