Machine screws
Machine screws |
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Phillips pan headPan heads are slightly rounded with short vertical sides. Phillips drive is x-shaped for installation with a Phillips screw driver. |
Star drive pan headPan heads are slightly rounded with short vertical sides. Star drive is a Torx® compatible drive, designed to minimize the risk of cam-out (stripping). |
Spanner pan headPan heads are slightly rounded with short vertical sides. Spanner (a.k.a. snake eyes) is a tamper resistant drive that requires a special driver to install. |
Phillips flat headFlat heads are countersunk (cone shaped under the head) with a flat top. Phillips drive is x-shaped for installation with a Phillips screw driver. |
Slotted flat headFlat heads are countersunk (cone shaped under the head) with a flat top. Slotted drive has a simple slot for a flat bladed screw driver. |
Star drive flat headFlat heads are countersunk (cone shaped under the head) with a flat top. Star drive is a Torx® compatible drive, designed to minimize the risk of cam-out (stripping). |
Spanner flat headFlat heads are countersunk (cone shaped under the head) with a flat top. Spanner (a.k.a. snake eyes) is a tamper resistant drive that requires a special driver to install. |
Star pin-in flat headFlat heads are countersunk (cone shaped under the head) with a flat top. Star pin-in is a tamper resistant drive that requires a special driver to install. |
Phillips oval headOval heads are countersunk (cone shaped under the head) with a rounded top. Phillips drive is x-shaped for installation with a Phillips screw driver. |
Slotted oval headOval heads are countersunk (cone shaped under the head) with a rounded top. Slotted drive has a simple slot for a flat bladed screw driver. |
Spanner oval headOval heads are countersunk (cone shaped under the head) with a rounded top. Spanner (a.k.a. snake eyes) is a tamper resistant drive that requires a special driver to install. |
Phillips truss headTruss heads are wide with a low profile rounded top. Phillips drive is x-shaped for installation with a Phillips screw driver. |
Slotted truss headTruss heads are wide with a low profile rounded top. Slotted drive has a simple slot for a flat bladed screw driver. |
Combo truss headTruss heads are wide with a low profile rounded top. Combination drive can be used with either a flat bladed or Phillips screw driver. |
Star drive truss headTruss heads are wide with a low profile rounded top. Star drive is a Torx® compatible drive, designed to minimize the risk of cam-out (stripping). |
Slotted round headRound heads are domed and look like half of a sphere. Slotted drive has a simple slot for a flat bladed screw driver. |
Combo round headRound heads are domed and look like half of a sphere. Combination drive can be used with either a flat bladed or Phillips screw driver. |
One way round headRound heads are domed and look like half of a sphere. One way drive is installed with a flat bladed screw driver but cannot be removed without special tools. |
Star pin-in button headButton heads are rounded and low profile. Star pin-in is a tamper resistant drive that requires a special driver to install. |
Slotted sidewalk boltSidewalk bolts have a wide, low profile head and are often used in hurricane shutter installation. Slotted drive has a simple slot for a flat bladed screw driver. |
Combo sidewalk boltSidewalk bolts have a wide, low profile head and are often used in hurricane shutter installation. Combination drive can be used with either a flat bladed or Phillips screw driver. |
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See also |
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Metric machine screwsScrews with machine threads for use with a nut or in a tapped hole. |
Socket screwsScrews with an Allen wrench drive. |