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M20 Socket Head Cap Screws DIN 912 (ISO 4762) in A4 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 DIN 912 or ISO 4762. Please note that due to manufacturing limitations, all nylon variants of these items are only "similar to" and not "in absolute accordance with" the standard specified.
Socket Head Cap Screws DIN 912 (ISO 4762) in A4 image
technical drawing of Socket Head Cap Screws DIN 912 (ISO 4762)
Technical Summary
d nominal diameter M20
thread pitch thread pitch 2.50
dk max. maximum head diameter 30.0
k max. maximum head height 20.0
s drive size 17
b minimum thread length 52
t recess depth 10.0
Standard ISO 4762 (DIN 912)
all dimensions in millimetres (mm)
html graphic DIN 912 | ISO 4762 Standard HTML
pdf graphic DIN 912 | ISO 4762 Standard PDF
< View All Sizes
Description Sale Qtys Qty Price Breakdown Despatch Estimate
M20 x 30mm Socket Head Cap Screw in A4 Stainless
WF17897 - expected in 13 to 20 days
single screw for £4.25
or box of 4 for £13.67
or bulk of 20 for £62.19
£0.00  
M20 x 35mm Socket Head Cap Screw in A4 Stainless
WF17899 - expected in 13 to 20 days
single screw for £3.94
or box of 4 for £12.37
or bulk of 20 for £56.21
£0.00  
M20 x 40mm Socket Head Cap Screw in A4 Stainless
WF17901 - 23 in stock
single screw for £5.20
or box of 5 for £22.00
or bulk of 25 for £94.98
£0.00  
M20 x 45mm Socket Head Cap Screw in A4 Stainless
WF17903 - expected in 13 to 20 days
single screw for £3.77
or box of 5 for £14.62
or bulk of 25 for £64.61
£0.00  
M20 x 50mm Socket Head Cap Screw in A4 Stainless
WF17905 - 16 in stock
single screw for £4.04
or box of 5 for £15.91
or bulk of 25 for £67.83
£0.00  
M20 x 55mm Socket Head Cap Screw in A4 Stainless
WF17907 - expected in 10 to 15 days
single screw for £4.18
or box of 4 for £13.37
or bulk of 20 for £59.30
£0.00  
M20 x 60mm Socket Head Cap Screw in A4 Stainless
WF17908 - expected in 4 to 6 days
single screw for £4.32
or box of 5 for £17.38
or bulk of 25 for £73.72
£0.00  
M20 x 65mm Socket Head Cap Screw in A4 Stainless
WF17910 - expected in 4 to 6 days
single screw for £4.81
or box of 3 for £12.01
or bulk of 15 for £53.75
£0.00  
M20 x 70mm Socket Head Cap Screw in A4 Stainless
WF17911 - 21 in stock
single screw for £4.60
or box of 5 for £18.62
or bulk of 25 for £79.14
£0.00  
M20 x 75mm Socket Head Cap Screw in A4 Stainless
WF17913 - expected in 13 to 20 days
single screw for £13.18
or box of 3 for £36.42
or bulk of 15 for £166.63
£0.00  
M20 x 80mm Socket Head Cap Screw in A4 Stainless
WF17914 - 17 in stock
single screw for £5.32
or box of 4 for £18.01
or bulk of 20 for £76.47
£0.00  
M20 x 85mm Socket Head Cap Screw in A4 Stainless
WF72385 - expected in 13 to 20 days
single screw for £6.53
or box of 3 for £17.33
or bulk of 15 for £75.93
£0.00  
M20 x 90mm Socket Head Cap Screw in A4 Stainless
WF17916 - expected in 13 to 20 days
single screw for £5.94
or box of 3 for £15.49
or bulk of 15 for £67.69
£0.00  
M20 x 95mm Socket Head Cap Screw in A4 Stainless
WF72387 - expected in 7 to 11 days
single screw for £6.69
or box of 3 for £17.85
or bulk of 15 for £77.68
£0.00  
M20 x 100mm Socket Head Cap Screw in A4 Stainless
WF17918 - 58 in stock
single screw for £6.04
or box of 3 for £15.78
or bulk of 15 for £67.33
£0.00  
M20 x 110mm Socket Head Cap Screw in A4 Stainless
WF17920 - 27 in stock
single screw for £7.23
or box of 3 for £19.51
or bulk of 15 for £83.06
£0.00  
M20 x 120mm Socket Head Cap Screw in A4 Stainless
WF17922 - expected in 5 to 8 days
single screw for £7.73
or box of 2 for £14.05
or bulk of 10 for £61.91
£0.00  
M20 x 130mm Socket Head Cap Screw in A4 Stainless
WF17924 - 36 in stock
single screw for £8.23
or box of 3 for £22.40
or bulk of 15 for £95.58
£0.00  
M20 x 140mm Socket Head Cap Screw in A4 Stainless
WF17926 - expected in 13 to 20 days
single screw for £8.84
or box of 2 for £16.34
or bulk of 10 for £71.22
£0.00  
M20 x 150mm Socket Head Cap Screw in A4 Stainless
WF17927 - 107 in stock
single screw for £8.89
or box of 2 for £16.45
or bulk of 10 for £70.57
£0.00  
M20 x 160mm Socket Head Cap Screw in A4 Stainless
WF17928 - 4 in stock
single screw for £19.58
or box of 2 for £37.04
or bulk of 10 for £166.92
£0.00  
M20 x 170mm Socket Head Cap Screw in A4 Stainless
WF17929 - expected in 13 to 20 days
single screw for £10.19 £0.00  
M20 x 180mm Socket Head Cap Screw in A4 Stainless
WF17930 - expected in 13 to 20 days
single screw for £20.53 £0.00  
M20 x 190mm Socket Head Cap Screw in A4 Stainless
WF17931 - expected in 13 to 20 days
single screw for £21.54 £0.00  
M20 x 200mm Socket Head Cap Screw in A4 Stainless
WF17932 - 9 in stock
single screw for £23.61 £0.00  
M20 x 210mm Socket Head Cap Screw in A4 Stainless
WF72364 - expected in 7 to 11 days
single screw for £26.23 £0.00  
M20 x 220mm Socket Head Cap Screw in A4 Stainless
WF72365 - expected in 7 to 11 days
single screw for £29.18 £0.00  
M20 x 230mm Socket Head Cap Screw in A4 Stainless
WF72366 - expected in 13 to 20 days
single screw for £28.87 £0.00  
M20 x 240mm Socket Head Cap Screw in A4 Stainless
WF72367 - expected in 7 to 11 days
single screw for £29.89 £0.00  
M20 x 250mm Socket Head Cap Screw in A4 Stainless
WF72368 - 21 in stock
single screw for £31.41 £0.00  
M20 x 260mm Socket Head Cap Screw in A4 Stainless
WF72369 - 26 in stock
single screw for £32.36 £0.00  
M20 x 270mm Socket Head Cap Screw in A4 Stainless
WF72370 - expected in 7 to 11 days
single screw for £35.75 £0.00  
M20 x 280mm Socket Head Cap Screw in A4 Stainless
WF72371 - expected in 7 to 11 days
single screw for £37.22 £0.00  
M20 x 290mm Socket Head Cap Screw in A4 Stainless
WF72372 - expected in 7 to 11 days
single screw for £38.69 £0.00  
M20 x 300mm Socket Head Cap Screw in A4 Stainless
WF64721 - expected in 7 to 11 days
single screw for £35.93 £0.00  
single screw for £4.25
or box of 4 for £13.67
or bulk of 20 for £62.19
£0.00
 
single screw for £3.94
or box of 4 for £12.37
or bulk of 20 for £56.21
£0.00
 
single screw for £5.20
or box of 5 for £22.00
or bulk of 25 for £94.98
£0.00
 
single screw for £3.77
or box of 5 for £14.62
or bulk of 25 for £64.61
£0.00
 
single screw for £4.04
or box of 5 for £15.91
or bulk of 25 for £67.83
£0.00
 
single screw for £4.18
or box of 4 for £13.37
or bulk of 20 for £59.30
£0.00
 
single screw for £4.32
or box of 5 for £17.38
or bulk of 25 for £73.72
£0.00
 
single screw for £4.81
or box of 3 for £12.01
or bulk of 15 for £53.75
£0.00
 
single screw for £4.60
or box of 5 for £18.62
or bulk of 25 for £79.14
£0.00
 
single screw for £13.18
or box of 3 for £36.42
or bulk of 15 for £166.63
£0.00
 
single screw for £5.32
or box of 4 for £18.01
or bulk of 20 for £76.47
£0.00
 
single screw for £6.53
or box of 3 for £17.33
or bulk of 15 for £75.93
£0.00
 
single screw for £5.94
or box of 3 for £15.49
or bulk of 15 for £67.69
£0.00
 
single screw for £6.69
or box of 3 for £17.85
or bulk of 15 for £77.68
£0.00
 
single screw for £6.04
or box of 3 for £15.78
or bulk of 15 for £67.33
£0.00
 
single screw for £7.23
or box of 3 for £19.51
or bulk of 15 for £83.06
£0.00
 
single screw for £7.73
or box of 2 for £14.05
or bulk of 10 for £61.91
£0.00
 
single screw for £8.23
or box of 3 for £22.40
or bulk of 15 for £95.58
£0.00
 
single screw for £8.84
or box of 2 for £16.34
or bulk of 10 for £71.22
£0.00
 
single screw for £8.89
or box of 2 for £16.45
or bulk of 10 for £70.57
£0.00
 
single screw for £19.58
or box of 2 for £37.04
or bulk of 10 for £166.92
£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 Socket Head Cap Screws DIN 912 (ISO 4762)
Technical Summary
d nominal diameter M20
thread pitch thread pitch 2.50
dk max. maximum head diameter 30.0
k max. maximum head height 20.0
s drive size 17
b minimum thread length 52
t recess depth 10.0
Standard ISO 4762 (DIN 912)
all dimensions in millimetres (mm)
html graphic DIN 912 | ISO 4762 Standard HTML
pdf graphic DIN 912 | ISO 4762 Standard PDF
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