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1/4 x 2-1/2 UNC Machine Screw Phil Fillister in A2 Stainless - ASME BA18.6.3

UNC Phillips Fillister machine screws have a large cylindrical head, with a slightly convex top surface. Fillister head screws are the preferred head type for counterbored holes and can also be used for protecting a surface by raising the level by which the tool is used to tighten the fixing. They are similar to a Pan head machine screw, but with a greater head height. Height to diameter ratio is also larger than a cheese head. Imperial Unified Coarse thread version.
Image of UNC Phillips Fillister Head Machine Screws ASME B18.6.3 in A2 image
technical drawing of UNC Phillips Fillister Head Machine Screws ASME B18.6.3
Technical Summary
d nominal diameter 1/4
t.p.i threads per inch 20
dk max. (inch) head diameter 0.414
A max. (inch) dimension A maximum 0.170
k max. (inch) head height 0.237
Standard ASME BA18.6.3
all dimensions in inches
Datasheet
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Description Sale Qtys Qty Price Breakdown Despatch Estimate
1/4 x 2-1/2 UNC Machine Screw Phil Fillister in A2 Stainless
WF58719
£4.43
1/4 x 2-1/2 UNC Machine Screw Phil Fillister in A2 Stainless   WF58719
£4.43
Prices are subject to quantity discounts based on a sliding scale. Enter the desired quantity in the relevant box in the table above. This will automatically calculate a line price indicating the applicable rate for the quantities selected. All prices shown exclude VAT.
technical drawing of UNC Phillips Fillister Head Machine Screws ASME B18.6.3
Technical Summary
d nominal diameter 1/4
t.p.i threads per inch 20
dk max. (inch) head diameter 0.414
A max. (inch) dimension A maximum 0.170
k max. (inch) head height 0.237
Standard ASME BA18.6.3
all dimensions in inches
Datasheet
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