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1/2 inch UNF Socket Head Cap Screws ASME B18. 3-2003 in A2 Stainless Steel

Also known as an Allen screw or Allen bolt, or simply a cap screw, socket head cap screws are a more modern alternative standard machine fastener to the standard hexagon headed bolt or setscrew, as found on much modern machinery. A hex key (otherwise known as an Allen key) is required to fit these fasteners. Conforming to ASME/ANSI B18.3, the contact surfaces of this screw or bolt are protected from external damage. Generally manufactured with a partial thread beyond a certain length and nominal diameter combination, but occasionally some stock may include a fully threaded shank at the same combination.
Image of UNF Socket Head Cap Screws ASME B18. 3-2003 in A2 image
technical drawing of UNF Socket Head Cap Screws ASME B18. 3-2003
Technical Summary
d nominal diameter 1/2
tpi threads per inch 20
b minimum thread length 1.50
dk head diameter 0.750
k max. maximum head height 0.500
t min. minimum recess depth 0.245
s drive size 3/8
Standard ASME B18.3/ASTM F837(CW)
all dimensions in inches
Datasheet
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Description Sale Qtys Qty Price Breakdown Despatch Estimate
1/2 x 3/4 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF17485 - 49 in stock
single screw for £5.20
or box of 8 for £24.73
or bulk of 40 for £84.79
£0.00  
1/2 x 7/8 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF36148 - 248 in stock
single screw for £4.65
or box of 5 for £12.84
or bulk of 25 for £49.12
£0.00  
1/2 x 1 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF10246 - 163 in stock
single screw for £2.72
or box of 25 for £17.97
or bulk of 125 for £61.85
£0.00  
1/2 x 1-1/4 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF10247 - 52 in stock
single screw for £5.80
or box of 10 for £32.05
or bulk of 50 for £119.90
£0.00  
1/2 x 1-1/2 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF17486 - 46 in stock
single screw for £3.65
or box of 8 for £12.94
or bulk of 40 for £48.60
£0.00  
1/2 x 1-3/4 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF17487 - 5 in stock
single screw for £5.73
or box of 5 for £17.99
or bulk of 25 for £64.31
£0.00  
1/2 x 2 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF10248 - 23 in stock
single screw for £4.05
or box of 6 for £12.02
or bulk of 30 for £45.99
£0.00  
1/2 x 2-1/4 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF17488 - 8 in stock
single screw for £9.87
or box of 3 for £22.65
or bulk of 15 for £78.71
£0.00  
1/2 x 2-1/2 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF10249 - 169 in stock
single screw for £9.27
or box of 5 for £30.92
or bulk of 25 for £115.03
£0.00  
1/2 x 3 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF17489 - 133 in stock
single screw for £10.31
or box of 3 for £23.89
or bulk of 15 for £82.26
£0.00  
1/2 x 3-1/2 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF36166 - 125 in stock
single screw for £9.63
or box of 2 for £14.64
or bulk of 10 for £54.56
£0.00  
single screw for £5.20
or box of 8 for £24.73
or bulk of 40 for £84.79
£0.00
 
single screw for £4.65
or box of 5 for £12.84
or bulk of 25 for £49.12
£0.00
 
single screw for £2.72
or box of 25 for £17.97
or bulk of 125 for £61.85
£0.00
 
single screw for £5.80
or box of 10 for £32.05
or bulk of 50 for £119.90
£0.00
 
single screw for £3.65
or box of 8 for £12.94
or bulk of 40 for £48.60
£0.00
 
single screw for £5.73
or box of 5 for £17.99
or bulk of 25 for £64.31
£0.00
 
single screw for £4.05
or box of 6 for £12.02
or bulk of 30 for £45.99
£0.00
 
single screw for £9.87
or box of 3 for £22.65
or bulk of 15 for £78.71
£0.00
 
single screw for £9.27
or box of 5 for £30.92
or bulk of 25 for £115.03
£0.00
 
single screw for £10.31
or box of 3 for £23.89
or bulk of 15 for £82.26
£0.00
 
single screw for £9.63
or box of 2 for £14.64
or bulk of 10 for £54.56
£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 Cap Screws ASME B18. 3-2003
Technical Summary
d nominal diameter 1/2
tpi threads per inch 20
b minimum thread length 1.50
dk head diameter 0.750
k max. maximum head height 0.500
t min. minimum recess depth 0.245
s drive size 3/8
Standard ASME B18.3/ASTM F837(CW)
all dimensions in inches
Datasheet
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