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5/16 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 5/16
tpi threads per inch 24
dk head diameter 0.656
k head height 0.198
t recess depth 0.135
s drive size 3/16
all dimensions in inches
Datasheet
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Description Sale Qtys Qty Price Breakdown Despatch Estimate
5/16 x 1/2 UNF Socket Head Countersunk Screw in A2 Stainless
WF17273 - 1230 in stock
single screw for £2.56
or box of 30 for £17.44
or bulk of 150 for £63.00
£0.00  
5/16 x 5/8 UNF Socket Head Countersunk Screw in A2 Stainless
WF35743 - 1199 in stock
single screw for £2.72
or box of 20 for £14.42
or bulk of 100 for £53.68
£0.00  
5/16 x 3/4 UNF Socket Head Countersunk Screw in A2 Stainless
WF17274 - 1428 in stock
single screw for £2.99
or box of 15 for £14.71
or bulk of 75 for £54.47
£0.00  
5/16 x 1 UNF Socket Head Countersunk Screw in A2 Stainless
WF17275 - 95 in stock
single screw for £2.93
or box of 15 for £13.89
or bulk of 75 for £52.13
£0.00  
5/16 x 1-1/4 UNF Socket Head Countersunk Screw in A2 Stainless
WF17276 - 23 in stock
single screw for £3.99
or box of 10 for £19.33
or bulk of 50 for £68.40
£0.00  
5/16 x 1-1/2 UNF Socket Head Countersunk Screw in A2 Stainless
WF23656 - 169 in stock
single screw for £4.85
or box of 8 for £22.09
or bulk of 40 for £76.70
£0.00  
5/16 x 2 UNF Socket Head Countersunk Screw in A2 Stainless
WF17277 - 211 in stock
single screw for £5.16
or box of 6 for £18.31
or bulk of 30 for £65.26
£0.00  
5/16 x 3 UNF Socket Head Countersunk Screw in A2 Stainless
WF23650 - 81 in stock
single screw for £5.16
or box of 6 for £18.34
or bulk of 30 for £65.35
£0.00  
single screw for £2.56
or box of 30 for £17.44
or bulk of 150 for £63.00
£0.00
 
single screw for £2.72
or box of 20 for £14.42
or bulk of 100 for £53.68
£0.00
 
single screw for £2.99
or box of 15 for £14.71
or bulk of 75 for £54.47
£0.00
 
single screw for £2.93
or box of 15 for £13.89
or bulk of 75 for £52.13
£0.00
 
single screw for £3.99
or box of 10 for £19.33
or bulk of 50 for £68.40
£0.00
 
single screw for £4.85
or box of 8 for £22.09
or bulk of 40 for £76.70
£0.00
 
single screw for £5.16
or box of 6 for £18.31
or bulk of 30 for £65.26
£0.00
 
single screw for £5.16
or box of 6 for £18.34
or bulk of 30 for £65.35
£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 5/16
tpi threads per inch 24
dk head diameter 0.656
k head height 0.198
t recess depth 0.135
s drive size 3/16
all dimensions in inches
Datasheet
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