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1/4 inch UNF Socket Head Countersunk Screws ASME B18. 3-2003 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 UNF Socket Head Countersunk Screws ASME B18. 3-2003 in A2 image
technical drawing of UNF Socket Head Countersunk Screws ASME B18. 3-2003
Technical Summary
d nominal diameter 1/4
tpi threads per inch 28
dk head diameter 0.531
k head height 0.161
t recess depth 0.111
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 UNF Socket Head Countersunk Screw in A2 Stainless
WF20246 - 66 in stock
single screw for £1.99
or box of 50 for £17.66
or bulk of 250 for £63.55
£0.00  
1/4 x 5/8 UNF Socket Head Countersunk Screw in A2 Stainless
WF17257 - 1221 in stock
single screw for £2.19
or box of 40 for £15.67
or bulk of 200 for £57.61
£0.00  
1/4 x 3/4 UNF Socket Head Countersunk Screw in A2 Stainless
WF32787 - 401 in stock
single screw for £1.92
or box of 30 for £10.38
or bulk of 150 for £41.51
£0.00  
1/4 x 1 UNF Socket Head Countersunk Screw in A2 Stainless
WF17258 - 323 in stock
single screw for £2.48
or box of 30 for £15.10
or bulk of 150 for £55.91
£0.00  
1/4 x 1-1/4 UNF Socket Head Countersunk Screw in A2 Stainless
WF17259 - 1484 in stock
single screw for £2.64
or box of 30 for £19.26
or bulk of 150 for £68.42
£0.00  
1/4 x 1-1/2 UNF Socket Head Countersunk Screw in A2 Stainless
WF17260 - 905 in stock
single screw for £2.76
or box of 15 for £11.40
or bulk of 75 for £44.51
£0.00  
1/4 x 2 UNF Socket Head Countersunk Screw in A2 Stainless
WF17261 - 879 in stock
single screw for £3.10
or box of 20 for £21.63
or bulk of 100 for £75.53
£0.00  
single screw for £1.99
or box of 50 for £17.66
or bulk of 250 for £63.55
£0.00
 
single screw for £2.19
or box of 40 for £15.67
or bulk of 200 for £57.61
£0.00
 
single screw for £1.92
or box of 30 for £10.38
or bulk of 150 for £41.51
£0.00
 
single screw for £2.48
or box of 30 for £15.10
or bulk of 150 for £55.91
£0.00
 
single screw for £2.64
or box of 30 for £19.26
or bulk of 150 for £68.42
£0.00
 
single screw for £2.76
or box of 15 for £11.40
or bulk of 75 for £44.51
£0.00
 
single screw for £3.10
or box of 20 for £21.63
or bulk of 100 for £75.53
£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 UNF Socket Head Countersunk Screws ASME B18. 3-2003
Technical Summary
d nominal diameter 1/4
tpi threads per inch 28
dk head diameter 0.531
k head height 0.161
t recess depth 0.111
s drive size 5/32
all dimensions in inches
Datasheet
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