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Machine screws, Stainless steel 18-8, #4-40

Machine screw

Machine screws, Stainless steel 18-8, #4-40
Spanner pan head machine screws

Spanner pan head

Pan 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.

Spanner flat head machine screws

Spanner flat head

Flat 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.

Matching Products

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Prod. # Description Buy
4115
Hex machine screw nuts, Stainless steel 18-8, #4-40
Hex machine screw nuts, Stainless steel 18-8, #4-40
A hex nut in smaller sizes for machine screw diameters under 1/4".
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$0.07 / ea
$2.88 / 100
$25.40 / 1,000
4107
Hex nylon insert lock nuts, Stainless steel 18-8, #4-40
Hex nylon insert lock nuts, Stainless steel 18-8, #4-40
A hex nut with a nylon ring to resist loosening.
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$0.07 / ea
$3.87 / 100
$32.50 / 1,000
5563
Flat washers, Stainless steel 18-8, #4
Flat washers, Stainless steel 18-8, #4
General use flat washer
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$0.07 / ea
$2.76 / 100
$22.10 / 1,000
4070
Lock washers, Stainless steel 18-8, #4
Lock washers, Stainless steel 18-8, #4
Split lock washers place tension against a nut after tightening, to help prevent loosening.
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$0.07 / ea
$2.36 / 100
$20.50 / 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.