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2-56 inch UNC Socket Head Cap Screws ASME B18.3-2012 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 UNC Socket Head Cap Screws ASME B18.3-2012 in A2 image
technical drawing of UNC Socket Head Cap Screws ASME B18.3-2012
Technical Summary
d nominal diameter 2-56
tpi threads per inch 56
dk head diameter 0.140
k head height 0.086
t recess depth 0.038
s drive size 5/64
b minimum thread length 0.62-0.99
Standard ASME B18.3/ASTM F837(CW)
all dimensions in inches
Datasheet
< View All Sizes
Description Sale Qtys Qty Price Breakdown Despatch Estimate
2-56 x 1/8 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF17341 - 894 in stock
sachet of 3 for £0.48
or box of 150 for £7.12
or bulk of 750 for £31.09
£0.00  
2-56 x 5/32 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF35992 - 376 in stock
sachet of 3 for £1.73
or box of 100 for £16.88
or bulk of 500 for £60.57
£0.00  
2-56 x 3/16 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF17342 - 3095 in stock
sachet of 8 for £1.37
or box of 400 for £20.17
or bulk of 2000 for £70.77
£0.00  
2-56 x 7/32 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF35998 - 210 in stock
sachet of 3 for £4.27
or box of 150 for £83.68
or bulk of 750 for £386.08
£0.00  
2-56 x 1/4 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF17343 - 285 in stock
sachet of 3 for £0.98
or box of 150 for £14.32
or bulk of 750 for £52.89
£0.00  
2-56 x 5/16 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF17344 - 38 in stock
sachet of 3 for £1.51
or box of 100 for £14.72
or bulk of 500 for £54.05
£0.00  
2-56 x 3/8 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF17345 - 74 in stock
sachet of 3 for £1.16
or box of 150 for £16.99
or bulk of 750 for £61.03
£0.00  
2-56 x 7/16 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF17346 - 396 in stock
sachet of 3 for £1.39
or box of 150 for £20.40
or bulk of 750 for £71.30
£0.00  
2-56 x 1/2 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF17347 - 620 in stock
sachet of 5 for £2.52
or box of 300 for £39.26
or bulk of 1500 for £158.26
£0.00  
2-56 x 5/8 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF17348 - 456 in stock
sachet of 2 for £0.75
or box of 80 for £8.77
or bulk of 400 for £36.14
£0.00  
2-56 x 11/16 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF35994 - 236 in stock
sachet of 2 for £1.01
or box of 100 for £14.77
or bulk of 500 for £54.28
£0.00  
2-56 x 3/4 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF17349 - 235 in stock
sachet of 2 for £1.54
or box of 100 for £22.50
or bulk of 500 for £77.65
£0.00  
2-56 x 7/8 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF17350 - 1866 in stock
sachet of 2 for £1.31
or box of 80 for £15.35
or bulk of 400 for £56.06
£0.00  
2-56 x 1 UNC Socket Head Cap (Allen) Screw in A2 Stainless
WF17351 - 261 in stock
sachet of 2 for £1.42
or box of 60 for £12.48
or bulk of 300 for £47.34
£0.00  
sachet of 3 for £0.48
or box of 150 for £7.12
or bulk of 750 for £31.09
£0.00
 
sachet of 3 for £1.73
or box of 100 for £16.88
or bulk of 500 for £60.57
£0.00
 
sachet of 8 for £1.37
or box of 400 for £20.17
or bulk of 2000 for £70.77
£0.00
 
sachet of 3 for £4.27
or box of 150 for £83.68
or bulk of 750 for £386.08
£0.00
 
sachet of 3 for £0.98
or box of 150 for £14.32
or bulk of 750 for £52.89
£0.00
 
sachet of 3 for £1.51
or box of 100 for £14.72
or bulk of 500 for £54.05
£0.00
 
sachet of 3 for £1.16
or box of 150 for £16.99
or bulk of 750 for £61.03
£0.00
 
sachet of 3 for £1.39
or box of 150 for £20.40
or bulk of 750 for £71.30
£0.00
 
sachet of 5 for £2.52
or box of 300 for £39.26
or bulk of 1500 for £158.26
£0.00
 
sachet of 2 for £0.75
or box of 80 for £8.77
or bulk of 400 for £36.14
£0.00
 
sachet of 2 for £1.01
or box of 100 for £14.77
or bulk of 500 for £54.28
£0.00
 
sachet of 2 for £1.54
or box of 100 for £22.50
or bulk of 500 for £77.65
£0.00
 
sachet of 2 for £1.31
or box of 80 for £15.35
or bulk of 400 for £56.06
£0.00
 
sachet of 2 for £1.42
or box of 60 for £12.48
or bulk of 300 for £47.34
£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 Cap Screws ASME B18.3-2012
Technical Summary
d nominal diameter 2-56
tpi threads per inch 56
dk head diameter 0.140
k head height 0.086
t recess depth 0.038
s drive size 5/64
b minimum thread length 0.62-0.99
Standard ASME B18.3/ASTM F837(CW)
all dimensions in inches
Datasheet
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