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Machine screws, Stainless steel 18-8, 5/16"-18 x 1"

Machine screw

Machine screws, Stainless steel 18-8, 5/16"-18 x 1"

Phillips pan head

Phillips pan head

Pan heads are slightly rounded with short vertical sides. Phillips drive is x-shaped for installation with a Phillips screw driver.

Star drive pan head machine screw

Star drive pan head

Pan heads are slightly rounded with short vertical sides. Star drive is a Torx® compatible drive, designed to minimize the risk of cam-out (stripping).

Phillips flat head

Phillips flat head

Flat 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 head

Slotted flat head

Flat heads are countersunk (cone shaped under the head) with a flat top. Slotted drive has a simple slot for a flat bladed screw driver.

Phillips oval head

Phillips oval head

Oval 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 head

Slotted oval head

Oval heads are countersunk (cone shaped under the head) with a rounded top. Slotted drive has a simple slot for a flat bladed screw driver.

Phillips truss head

Phillips truss head

Truss heads are wide with a low profile rounded top. Phillips drive is x-shaped for installation with a Phillips screw driver.

Star drive truss head machine screw

Star drive truss head

Truss 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 head

Slotted round head

Round heads are domed and look like half of a sphere. Slotted drive has a simple slot for a flat bladed screw driver.

Slotted oversize truss head

Slotted sidewalk bolt

Sidewalk 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.

Matching Products

Click on a product # for additional info

Prod. # Description Buy
2564
$0.11 / ea
$7.29 / 100
$61.30 / 1,000
2555
Hex nylon insert lock nuts, Stainless steel 18-8, 5/16"-18
A hex nut with a nylon ring to resist loosening.
$0.22 / ea
$15.64 / 100
$131.00 / 1,000
2948
$0.09 / ea
$5.98 / 100
$47.80 / 1,000
2957
Lock washers, Stainless steel 18-8, 5/16"
Split lock washers place tension against a nut after tightening, to help prevent loosening.
$0.11 / ea
$6.07 / 100
$53.20 / 1,000

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See also

Metric machine screw

Metric machine screws

Screws with machine threads for use with a nut or in a tapped hole.

Socket product

Socket screws

Screws with an Allen wrench drive.