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6-40 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 6-40
tpi threads per inch 40
b minimum thread length 0.75
dk head diameter 0.226
k max. maximum head height 0.138
t min. minimum recess depth 0.064
s drive size 7/64
Standard ASME B18.3/ASTM F837(CW)
all dimensions in inches
Datasheet
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Description Sale Qtys Qty Price Breakdown Despatch Estimate
6-40 x 3/16 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF36125 - 2305 in stock
sachet of 2 for £1.26
or box of 150 for £16.75
or bulk of 750 for £60.55
£0.00  
6-40 x 1/4 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF36064 - 323 in stock
sachet of 2 for £2.49
or box of 150 for £32.57
or bulk of 750 for £124.83
£0.00  
6-40 x 5/16 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF36065 - 1850 in stock
sachet of 2 for £1.43
or box of 150 for £19.01
or bulk of 750 for £67.48
£0.00  
6-40 x 3/8 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF36066 - 227 in stock
sachet of 2 for £1.58
or box of 100 for £14.09
or bulk of 500 for £52.49
£0.00  
6-40 x 1/2 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF36067 - 32 in stock
sachet of 2 for £3.35
or box of 100 for £49.51
or bulk of 500 for £209.50
£0.00  
6-40 x 5/8 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF36068 - 2180 in stock
sachet of 2 for £1.62
or box of 150 for £21.59
or bulk of 750 for £75.47
£0.00  
6-40 x 3/4 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF36070 - 76 in stock
single screw for £1.07
or box of 80 for £15.28
or bulk of 400 for £56.19
£0.00  
6-40 x 7/8 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF36076 - 2030 in stock
single screw for £0.94
or box of 80 for £13.43
or bulk of 400 for £50.71
£0.00  
6-40 x 1 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF36072 - 2275 in stock
sachet of 2 for £2.09
or box of 80 for £14.93
or bulk of 400 for £55.26
£0.00  
6-40 x 1-1/4 UNF Socket Head Cap (Allen) Screw in A2 Stainless
WF36077 - 2372 in stock
single screw for £1.19
or box of 60 for £12.68
or bulk of 300 for £48.43
£0.00  
sachet of 2 for £1.26
or box of 150 for £16.75
or bulk of 750 for £60.55
£0.00
 
sachet of 2 for £2.49
or box of 150 for £32.57
or bulk of 750 for £124.83
£0.00
 
sachet of 2 for £1.43
or box of 150 for £19.01
or bulk of 750 for £67.48
£0.00
 
sachet of 2 for £1.58
or box of 100 for £14.09
or bulk of 500 for £52.49
£0.00
 
sachet of 2 for £3.35
or box of 100 for £49.51
or bulk of 500 for £209.50
£0.00
 
sachet of 2 for £1.62
or box of 150 for £21.59
or bulk of 750 for £75.47
£0.00
 
single screw for £1.07
or box of 80 for £15.28
or bulk of 400 for £56.19
£0.00
 
single screw for £0.94
or box of 80 for £13.43
or bulk of 400 for £50.71
£0.00
 
sachet of 2 for £2.09
or box of 80 for £14.93
or bulk of 400 for £55.26
£0.00
 
single screw for £1.19
or box of 60 for £12.68
or bulk of 300 for £48.43
£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 6-40
tpi threads per inch 40
b minimum thread length 0.75
dk head diameter 0.226
k max. maximum head height 0.138
t min. minimum recess depth 0.064
s drive size 7/64
Standard ASME B18.3/ASTM F837(CW)
all dimensions in inches
Datasheet
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