Home / UNC Bolts, Nuts and Washers / 1/4 x 5/8 UNC Machine Screw Phil Fillister in A2 Stainless - ASME BA18.6.3

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1/4 x 5/8 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

nominal diameter

1/4

t.p.i

threads per inch

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 5/8 UNC Machine Screw Phil Fillister in A2 Stainless WF58711			£2.74

1/4 x 5/8 UNC Machine Screw Phil Fillister in A2 Stainless WF58711

£2.74

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