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Machine screws, Spanner pan head, Stainless steel 18-8, #4-40 x 1/2"

Spanner pan head machine screws

Prod. # Length Each price Bag price Bulk price Price Buy
20712 1/2" $0.60 / ea $37.79 / 100 $317.00 / 1,000 $0.60 / ea $37.79 / 100 $317.00 / 1,000
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Spanner pan machine screw dimensions
Product details
Bolt Depot product# 20712
Units US
Category Machine screws
Screws with machine threads for use with a nut or in a tapped hole.
Subcategory Machine screws
Machine screws have machine threads for use with a nut or in a tapped hole.
Head style Pan
Pan heads are slightly rounded with short vertical sides.
Drive type Spanner
Spanner (a.k.a. snake eyes) is a tamper resistant drive that requires a special driver to install.
Material Stainless steel
Grade 18-8
A corrosion resistant steel alloy. The most common stainless steel for general hardware use.
Thread density Coarse
Diameter #4
Thread count 40
Length 1/2"
Diameter in inches 0.112"
Dimensional standard ASME B18.6.3
Tamper resistant Yes
Thread direction Right hand
Head height 0.058" - 0.068"
Head diameter 0.205" - 0.219"
Drive size #4

Matching Products

Click on a product # for additional info

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

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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.