Home / Bolts and Machine Screws - Metric / M4 Socket Head Countersunk Screws ISO 10642 (DIN 7991) in A2 Stainless Steel

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M4 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

thread pitch

0.70

dk max.

maximum head diameter

7.96

dk min.

minimum head diameter

7.53

k max.

maximum head height

2.48

k min.

minimum head height

2.121

s max.

maximum drive size

2.580

s min.

drive min.

2.520

minimum thread length

t max.

maximum recess depth

1.65

t min.

minimum recess depth

1.40

width across corners

3.82

Standard

ISO 10642

all dimensions in millimetres (mm)

				ISO 10642 Standard HTML
				ISO 10642 Standard PDF

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Description	Sale Qtys	Qty	Price	Breakdown	Despatch Estimate
M4 x 5mm Socket Head Csk (Allen) Screw in A2 Stainless WF74697			£0.00
M4 x 6mm Socket Head Csk (Allen) Screw in A2 Stainless WF2548			£0.00
M4 x 8mm Socket Head Csk (Allen) Screw in A2 Stainless WF2549			£0.00
M4 x 10mm Socket Head Csk (Allen) Screw in A2 Stainless WF2550			£0.00
M4 x 12mm Socket Head Csk (Allen) Screw in A2 Stainless WF2551			£0.00
M4 x 16mm Socket Head Csk (Allen) Screw in A2 Stainless WF2552			£0.00
M4 x 18mm Socket Head Csk (Allen) Screw in A2 Stainless WF74688			£0.00
M4 x 20mm Socket Head Csk (Allen) Screw in A2 Stainless WF2553			£0.00
M4 x 25mm Socket Head Csk (Allen) Screw in A2 Stainless WF2554			£0.00
M4 x 30mm Socket Head Csk (Allen) Screw in A2 Stainless WF2555			£0.00
M4 x 35mm Socket Head Csk (Allen) Screw in A2 Stainless WF2556			£0.00
M4 x 40mm Socket Head Csk (Allen) Screw in A2 Stainless WF2557			£0.00
M4 x 50mm Socket Head Csk (Allen) Screw in A2 Stainless WF2558			£0.00
M4 x 55mm Socket Head Csk (Allen) Screw in A2 Stainless WF74699			£0.00

M4 x 5mm Socket Head Csk (Allen) Screw in A2 Stainless
WF74697

M4 x 6mm Socket Head Csk (Allen) Screw in A2 Stainless
WF2548

M4 x 8mm Socket Head Csk (Allen) Screw in A2 Stainless
WF2549

M4 x 10mm Socket Head Csk (Allen) Screw in A2 Stainless
WF2550

M4 x 12mm Socket Head Csk (Allen) Screw in A2 Stainless
WF2551

M4 x 16mm Socket Head Csk (Allen) Screw in A2 Stainless
WF2552

M4 x 18mm Socket Head Csk (Allen) Screw in A2 Stainless
WF74688

M4 x 20mm Socket Head Csk (Allen) Screw in A2 Stainless
WF2553

M4 x 25mm Socket Head Csk (Allen) Screw in A2 Stainless
WF2554

M4 x 30mm Socket Head Csk (Allen) Screw in A2 Stainless
WF2555

M4 x 35mm Socket Head Csk (Allen) Screw in A2 Stainless
WF2556

M4 x 40mm Socket Head Csk (Allen) Screw in A2 Stainless
WF2557

M4 x 50mm Socket Head Csk (Allen) Screw in A2 Stainless
WF2558

M4 x 55mm Socket Head Csk (Allen) Screw in A2 Stainless
WF74699

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