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Home   /   UNC Bolts, Nuts and Washers   /   1/4 inch UNC Socket Head Countersunk Screws ASME B18.3-2012 in A2 Stainless Steel

1/4 inch UNC Socket Head Countersunk Screws ASME B18.3-2012 in A2 Stainless Steel

A countersunk headed screw conforming with ASME/ANSI B18.3, requiring a hex key (otherwise known as an Allen key) to fit. The countersunk head is typically used in conjunction with a countersunk hole providing a flush, snag free fit. Generally manufactured with a full thread, though occasionally some stock may include a partially threaded shank.
Image of UNC Socket Head Countersunk Screws ASME B18.3-2012 in A2 image
technical drawing of UNC Socket Head Countersunk Screws ASME B18.3-2012
Technical Summary
d nominal diameter 1/4
tpi threads per inch 20
dk head diameter 0.477
k head height 0.161
s drive size 5/32
all dimensions in inches
Datasheet
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Description Sale Qtys Qty Price Breakdown Despatch Estimate
1/4 x 3/8 UNC Socket Head Countersunk Screw in A2 Stainless
WF17244 - 3053 in stock
single screw for £1.23
or box of 60 for £13.19
or bulk of 300 for £50.13
£0.00  
1/4 x 1/2 UNC Socket Head Countersunk Screw in A2 Stainless
WF17245 - 1133 in stock
single screw for £1.00
or box of 60 for £10.92
or bulk of 300 for £43.27
£0.00  
1/4 x 5/8 UNC Socket Head Countersunk Screw in A2 Stainless
WF17246 - 1346 in stock
single screw for £1.86
or box of 50 for £16.60
or bulk of 250 for £60.46
£0.00  
1/4 x 3/4 UNC Socket Head Countersunk Screw in A2 Stainless
WF17247 - 81 in stock
single screw for £2.29
or box of 50 for £20.46
or bulk of 250 for £71.99
£0.00  
1/4 x 7/8 UNC Socket Head Countersunk Screw in A2 Stainless
WF25298 - expected in 3 to 5 days
single screw for £1.45
or box of 50 for £13.16
or bulk of 250 for £49.84
£0.00  
1/4 x 1 UNC Socket Head Countersunk Screw in A2 Stainless
WF17248 - 285 in stock
single screw for £1.85
or box of 50 for £16.77
or bulk of 250 for £60.63
£0.00  
1/4 x 1-1/4 UNC Socket Head Countersunk Screw in A2 Stainless
WF17249 - 1439 in stock
single screw for £2.13
or box of 40 for £15.41
or bulk of 200 for £56.60
£0.00  
1/4 x 1-1/2 UNC Socket Head Countersunk Screw in A2 Stainless
WF17250 - 416 in stock
single screw for £2.44
or box of 40 for £18.41
or bulk of 200 for £65.47
£0.00  
1/4 x 1-3/4 UNC Socket Head Countersunk Screw in A2 Stainless
WF17251 - 569 in stock
single screw for £2.43
or box of 30 for £13.62
or bulk of 150 for £51.19
£0.00  
1/4 x 2 UNC Socket Head Countersunk Screw in A2 Stainless
WF17252 - 200 in stock
single screw for £2.67
or box of 80 for £43.11
or bulk of 400 for £172.32
£0.00  
1/4 x 2-1/4 UNC Socket Head Countersunk Screw in A2 Stainless
WF17253 - 1745 in stock
single screw for £2.81
or box of 20 for £16.18
or bulk of 100 for £59.08
£0.00  
1/4 x 2-1/2 UNC Socket Head Countersunk Screw in A2 Stainless
WF17254 - 89 in stock
single screw for £3.00
or box of 20 for £19.78
or bulk of 100 for £69.87
£0.00  
1/4 x 3 UNC Socket Head Countersunk Screw in A2 Stainless
WF17255 - 1129 in stock
single screw for £3.00
or box of 15 for £15.01
or bulk of 75 for £55.57
£0.00  
1/4 x 4 UNC Socket Head Countersunk Screw in A2 Stainless
WF17256 - 31 in stock
single screw for £5.71
or box of 5 for £17.92
or bulk of 25 for £64.04
£0.00  
single screw for £1.23
or box of 60 for £13.19
or bulk of 300 for £50.13
£0.00
 
single screw for £1.00
or box of 60 for £10.92
or bulk of 300 for £43.27
£0.00
 
single screw for £1.86
or box of 50 for £16.60
or bulk of 250 for £60.46
£0.00
 
single screw for £2.29
or box of 50 for £20.46
or bulk of 250 for £71.99
£0.00
 
single screw for £1.45
or box of 50 for £13.16
or bulk of 250 for £49.84
£0.00
 
single screw for £1.85
or box of 50 for £16.77
or bulk of 250 for £60.63
£0.00
 
single screw for £2.13
or box of 40 for £15.41
or bulk of 200 for £56.60
£0.00
 
single screw for £2.44
or box of 40 for £18.41
or bulk of 200 for £65.47
£0.00
 
single screw for £2.43
or box of 30 for £13.62
or bulk of 150 for £51.19
£0.00
 
single screw for £2.67
or box of 80 for £43.11
or bulk of 400 for £172.32
£0.00
 
single screw for £2.81
or box of 20 for £16.18
or bulk of 100 for £59.08
£0.00
 
single screw for £3.00
or box of 20 for £19.78
or bulk of 100 for £69.87
£0.00
 
single screw for £3.00
or box of 15 for £15.01
or bulk of 75 for £55.57
£0.00
 
single screw for £5.71
or box of 5 for £17.92
or bulk of 25 for £64.04
£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 Socket Head Countersunk Screws ASME B18.3-2012
Technical Summary
d nominal diameter 1/4
tpi threads per inch 20
dk head diameter 0.477
k head height 0.161
s drive size 5/32
all dimensions in inches
Datasheet
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