Home / Bolts and Machine Screws - Metric / M2.5 Socket Head Countersunk Screws ISO 10642 (DIN 7991) in A2 Stainless Steel

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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

nominal diameter

M2.5

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

minimum thread length

t max.

maximum recess depth

1.15

t min.

minimum recess depth

1.00

width across corners

1.733

Standard

ISO 10642

all dimensions in millimetres (mm)

				ISO 10642 Standard HTML
				ISO 10642 Standard PDF

< View All Sizes

Description	Sale Qtys	Qty	Price	Breakdown	Despatch Estimate
M2.5 x 3mm Socket Head Countersunk Screw in A2 Stainless WF74651			£0.00
M2.5 x 4mm Socket Head Countersunk Screw in A2 Stainless WF67580			£0.00
M2.5 x 5mm Socket Head Countersunk Screw in A2 Stainless WF74653			£0.00
M2.5 x 6mm Socket Head Countersunk Screw in A2 Stainless WF61991			£0.00
M2.5 x 8mm Socket Head Countersunk Screw in A2 Stainless WF25951			£0.00
M2.5 x 10mm Socket Head Countersunk Screw in A2 Stainless WF74646			£0.00
M2.5 x 12mm Socket Head Countersunk Screw in A2 Stainless WF74647			£0.00
M2.5 x 14mm Socket Head Countersunk Screw in A2 Stainless WF74648			£0.00
M2.5 x 16mm Socket Head Countersunk Screw in A2 Stainless WF74649			£0.00
M2.5 x 20mm Socket Head Countersunk Screw in A2 Stainless WF74650			£0.00

M2.5 x 3mm Socket Head Countersunk Screw in A2 Stainless
WF74651

M2.5 x 4mm Socket Head Countersunk Screw in A2 Stainless
WF67580

M2.5 x 5mm Socket Head Countersunk Screw in A2 Stainless
WF74653

M2.5 x 6mm Socket Head Countersunk Screw in A2 Stainless
WF61991

M2.5 x 8mm Socket Head Countersunk Screw in A2 Stainless
WF25951

M2.5 x 10mm Socket Head Countersunk Screw in A2 Stainless
WF74646

M2.5 x 12mm Socket Head Countersunk Screw in A2 Stainless
WF74647

M2.5 x 14mm Socket Head Countersunk Screw in A2 Stainless
WF74648

M2.5 x 16mm Socket Head Countersunk Screw in A2 Stainless
WF74649

M2.5 x 20mm Socket Head Countersunk Screw in A2 Stainless
WF74650

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