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

A popular machine screw with a phillips drive. The countersunk head is typically used in conjunction with a countersunk hole providing a flush, snag free fit. These items are always fully threaded. Conforms to ASME B18.6.3. Typically found on consumer electronics and other small machinery where high torque fasteners are not necessary.
Image of UNC Phillips Csk Machine Screws ASME B18.6.3 in A2 image
technical drawing of UNC Phillips Csk Machine Screws ASME B18.6.3
Technical Summary
d nominal diameter 4-40
tpi threads per inch 40
dk head diameter 0.212
k head height 0.067
s drive size 1
Standard ASME B16.6.3-2003
Material A2 Stainless Steel
all dimensions in inches
datasheet
< View All Sizes
Description Sale Qtys Qty Price Breakdown Despatch Estimate
Machine Screw Phillips Countersunk UNC 4-40 x 1/8 inch in A2 Stainless
WF23801
£0.00
Machine Screw Phillips Csk UNC 4-40 x 3/16 inch in A2 Stainless
WF21120
£0.00
Machine Screw Phillips Countersunk UNC 4-40 x 1/4 inch in A2 Stainless
WF23802
£0.00
Machine Screw Phillips Csk UNC 4-40 x 5/16 inch in A2 Stainless
WF23803
£0.00
Machine Screw Phillips Countersunk UNC 4-40 x 3/8 inch in A2 Stainless
WF23804
£0.00
Machine Screw Phillips Csk UNC 4-40 x 7/16 inch in A2 Stainless
WF23805
£0.00
Machine Screw Phillips Countersunk UNC 4-40 x 1/2 inch in A2 Stainless
WF23806
£0.00
Machine Screw Phillips Countersunk UNC 4-40 x 5/8 inch in A2 Stainless
WF23807
£0.00
Machine Screw Phillips Countersunk UNC 4-40 x 3/4 inch in A2 Stainless
WF23808
£0.00
Machine Screw Phillips Countersunk UNC 4-40 x 7/8 inch in A2 Stainless
WF23809
£0.00
Machine Screw Phillips Csk UNC 4-40 x 1-1/4 inch in A2 Stainless
WF23810
£0.00
Machine Screw Phillips Csk UNC 4-40 x 1-3/4 inch in A2 Stainless
WF23811
£0.00
Machine Screw Phillips Countersunk UNC 4-40 x 2 inch in A2 Stainless
WF23812
£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 Csk Machine Screws ASME B18.6.3
Technical Summary
d nominal diameter 4-40
tpi threads per inch 40
dk head diameter 0.212
k head height 0.067
s drive size 1
Standard ASME B16.6.3-2003
Material A2 Stainless Steel
all dimensions in inches
datasheet