Westfield Fasteners Ltd Logo
Westfield Fasteners Ltd Telephone: 01844201133, Email: enquiries@westfieldfasteners.co.uk
Home   /   UNC Bolts, Nuts and Washers   /   4-40 inch UNC Phillips Fillister Head Machine Screws ASME B18.6.3 in A2 Stainless Steel

4-40 inch UNC Phillips Fillister Head Machine Screws ASME B18.6.3 in A2 Stainless Steel

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 4-40
t.p.i threads per inch 40
dk max. (inch) head diameter 0.183
A max. (inch) dimension A maximum 0.069
k max. (inch) head height 0.107
Standard ASME BA18.6.3
all dimensions in inches
Datasheet
< View All Sizes
Description Sale Qtys Qty Price Breakdown Despatch Estimate
4-40 x 5/16 UNC Machine Screw Phil Fillister in A2 Stainless
WF58641 - 4859 in stock
sachet of 3 for £1.41
or box of 150 for £21.34
or bulk of 750 for £63.63
£0.00  
4-40 x 7/16 UNC Machine Screw Phil Fillister in A2 Stainless
WF58642 - 765 in stock
sachet of 3 for £2.06
or box of 100 for £20.73
or bulk of 500 for £62.08
£0.00  
4-40 x 1/2 UNC Machine Screw Phil Fillister in A2 Stainless
WF58643 - 4533 in stock
sachet of 3 for £1.56
or box of 100 for £15.70
or bulk of 500 for £50.22
£0.00  
4-40 x 5/8 UNC Machine Screw Phil Fillister in A2 Stainless
WF58644 - 4956 in stock
sachet of 2 for £1.23
or box of 100 for £18.68
or bulk of 500 for £57.34
£0.00  
4-40 x 3/4 UNC Machine Screw Phil Fillister in A2 Stainless
WF58645 - 4746 in stock
sachet of 2 for £1.38
or box of 80 for £16.75
or bulk of 400 for £52.70
£0.00  
4-40 x 1-3/8 UNC Machine Screw Phil Fillister in A2 Stainless
WF58646 - 2843 in stock
sachet of 2 for £1.64
or box of 80 for £19.78
or bulk of 400 for £60.13
£0.00  
4-40 x 1-1/2 UNC Machine Screw Phil Fillister in A2 Stainless
WF58647 - 2 in stock
sachet of 2 for £1.96
or box of 60 for £17.78
or bulk of 300 for £55.27
£0.00  
sachet of 3 for £1.41
or box of 150 for £21.34
or bulk of 750 for £63.63
£0.00
 
sachet of 3 for £2.06
or box of 100 for £20.73
or bulk of 500 for £62.08
£0.00
 
sachet of 3 for £1.56
or box of 100 for £15.70
or bulk of 500 for £50.22
£0.00
 
sachet of 2 for £1.23
or box of 100 for £18.68
or bulk of 500 for £57.34
£0.00
 
sachet of 2 for £1.38
or box of 80 for £16.75
or bulk of 400 for £52.70
£0.00
 
sachet of 2 for £1.64
or box of 80 for £19.78
or bulk of 400 for £60.13
£0.00
 
sachet of 2 for £1.96
or box of 60 for £17.78
or bulk of 300 for £55.27
£0.00
 
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 4-40
t.p.i threads per inch 40
dk max. (inch) head diameter 0.183
A max. (inch) dimension A maximum 0.069
k max. (inch) head height 0.107
Standard ASME BA18.6.3
all dimensions in inches
Datasheet
FSB logo CBI logo