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M2.5 Socket Head Countersunk Screws ISO 10642 (DIN 7991) in A2 Stainless Steel

A countersunk headed screw conforming with ISO 10642 or DIN 7991, 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. The head diameter is slightly larger than that of the equivalent DIN 965 Phillips or Pozi driven screw.
Socket Head Countersunk Screws ISO 10642 (DIN 7991) in A2 image
technical drawing of Socket Head Countersunk Screws ISO 10642 (DIN 7991)
Technical Summary
d nominal diameter M2.5
thread pitch thread pitch 0.45
dk max. maximum head diameter 5.08
dk min. minimum head diameter 4.80
k max. maximum head height 1.690
k min. minimum head height 1.408
s max. maximum drive size 1.560
s min. drive min. 1.520
b minimum thread length -
t max. maximum recess depth 1.15
t min. minimum recess depth 1.00
e width across corners 1.733
Standard ISO 10642
all dimensions in millimetres (mm)
html graphic ISO 10642 Standard HTML
pdf graphic ISO 10642 Standard PDF
< View All Sizes
Description Sale Qtys Qty Price Breakdown Despatch Estimate
M2.5 x 3mm Socket Head Csk (Allen) Screw in A2 Stainless
WF74651 - expected in 7 to 11 days
sachet of 2 for £1.11
or box of 150 for £16.68
or bulk of 750 for £67.43
£0.00  
M2.5 x 5mm Socket Head Csk (Allen) Screw in A2 Stainless
WF74653 - 562 in stock
sachet of 2 for £1.27
or box of 100 for £12.73
or bulk of 500 for £53.01
£0.00  
M2.5 x 8mm Socket Head Csk (Allen) Screw in A2 Stainless
WF25951 - 608 in stock
sachet of 15 for £4.15
or box of 800 for £91.08
or bulk of 4000 for £434.32
£0.00  
M2.5 x 10mm Socket Head Csk (Allen) Screw in A2 Stainless
WF74646 - 3637 in stock
sachet of 3 for £2.33
or box of 200 for £29.35
or bulk of 1000 for £120.81
£0.00  
M2.5 x 12mm Socket Head Csk (Allen) Screw in A2 Stainless
WF74647 - 688 in stock
single screw for £0.88
or box of 80 for £14.10
or bulk of 400 for £58.01
£0.00  
M2.5 x 14mm Socket Head Csk (Allen) Screw in A2 Stainless
WF74648 - 406 in stock
single screw for £1.06
or box of 60 for £12.82
or bulk of 300 for £53.34
£0.00  
M2.5 x 16mm Socket Head Csk (Allen) Screw in A2 Stainless
WF74649 - 857 in stock
single screw for £1.15
or box of 60 for £13.84
or bulk of 300 for £57.06
£0.00  
M2.5 x 20mm Socket Head Csk (Allen) Screw in A2 Stainless
WF74650 - 62 in stock
single screw for £1.33
or box of 50 for £13.37
or bulk of 250 for £55.34
£0.00  
sachet of 2 for £1.11
or box of 150 for £16.68
or bulk of 750 for £67.43
£0.00
 
sachet of 2 for £1.27
or box of 100 for £12.73
or bulk of 500 for £53.01
£0.00
 
sachet of 15 for £4.15
or box of 800 for £91.08
or bulk of 4000 for £434.32
£0.00
 
sachet of 3 for £2.33
or box of 200 for £29.35
or bulk of 1000 for £120.81
£0.00
 
single screw for £0.88
or box of 80 for £14.10
or bulk of 400 for £58.01
£0.00
 
single screw for £1.06
or box of 60 for £12.82
or bulk of 300 for £53.34
£0.00
 
single screw for £1.15
or box of 60 for £13.84
or bulk of 300 for £57.06
£0.00
 
single screw for £1.33
or box of 50 for £13.37
or bulk of 250 for £55.34
£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 Socket Head Countersunk Screws ISO 10642 (DIN 7991)
Technical Summary
d nominal diameter M2.5
thread pitch thread pitch 0.45
dk max. maximum head diameter 5.08
dk min. minimum head diameter 4.80
k max. maximum head height 1.690
k min. minimum head height 1.408
s max. maximum drive size 1.560
s min. drive min. 1.520
b minimum thread length -
t max. maximum recess depth 1.15
t min. minimum recess depth 1.00
e width across corners 1.733
Standard ISO 10642
all dimensions in millimetres (mm)
html graphic ISO 10642 Standard HTML
pdf graphic ISO 10642 Standard PDF
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