Home / Bolts and Machine Screws - Metric / M20 Socket Head Countersunk Screws ISO 10642 (DIN 7991) in A4 Stainless Steel

Order List Summary

Goods Total

= £

Delivery

VAT @%

= £

Grand Total

= £

Free Delivery

	on UK orders of over £40 nett.
	on orders to Sweden over £80 nett.

M20 Socket Head Countersunk Screws ISO 10642 (DIN 7991) in A4 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 A4 image

technical drawing of Socket Head Countersunk Screws ISO 10642 (DIN 7991)

Technical Summary

nominal diameter

M20

thread pitch

2.50

dk max.

maximum head diameter

36.75

dk min.

minimum head diameter

35.40

k max.

maximum head height

10.160

k min.

minimum head height

9.037

s max.

maximum drive size

12.212

s min.

drive min.

12.032

minimum thread length

t max.

maximum recess depth

6.40

t min.

minimum recess depth

5.60

width across corners

13.716

Standard

ISO 10642 (DIN 7991)

all dimensions in millimetres (mm)

				ISO 10642 Standard HTML
				ISO 10642 Standard PDF

< View All Sizes

Description	Sale Qtys	Qty	Price	Breakdown	Despatch Estimate
Socket Head Csk (Allen) Screw M20 x 30mm in A4 Stainless WF79685			£0.00
Socket Head Csk (Allen) Screw M20 x 35mm in A4 Stainless WF79686			£0.00
Socket Head Countersunk Screw M20 x 40mm in A4 Stainless WF57066			£0.00
Socket Head Csk (Allen) Screw M20 x 45mm in A4 Stainless WF79688			£0.00
Socket Head Csk (Allen) Screw M20 x 50mm in A4 Stainless WF79689			£0.00
Socket Head Countersunk Screw M20 x 55mm in A4 Stainless WF57068			£0.00
Socket Head Csk (Allen) Screw M20 x 60mm in A4 Stainless WF79691			£0.00
Socket Head Csk (Allen) Screw M20 x 65mm in A4 Stainless WF79692			£0.00
Socket Head Csk (Allen) Screw M20 x 70mm in A4 Stainless WF79693			£0.00
Socket Head Csk (Allen) Screw M20 x 75mm in A4 Stainless WF79829			£0.00
Socket Head Countersunk Screw M20 x 80mm in A4 Stainless WF32839			£0.00
Socket Head Csk (Allen) Screw M20 x 90mm in A4 Stainless WF79831			£0.00
Socket Head Countersunk Screw M20 x 100mm in A4 Stainless WF70662			£0.00
Socket Head Countersunk Screw M20 x 110mm in A4 Stainless WF34489			£0.00
Socket Head Countersunk Screw M20 x 120mm in A4 Stainless WF34491			£0.00
Socket Head Csk (Allen) Screw M20 x 140mm in A4 Stainless WF79827			£0.00
Socket Head Countersunk Screw M20 x 200mm in A4 Stainless WF68577			£0.00

Socket Head Csk (Allen) Screw M20 x 30mm in A4 Stainless
WF79685

Socket Head Csk (Allen) Screw M20 x 35mm in A4 Stainless
WF79686

Socket Head Countersunk Screw M20 x 40mm in A4 Stainless
WF57066

Socket Head Csk (Allen) Screw M20 x 45mm in A4 Stainless
WF79688

Socket Head Csk (Allen) Screw M20 x 50mm in A4 Stainless
WF79689

Socket Head Countersunk Screw M20 x 55mm in A4 Stainless
WF57068

Socket Head Csk (Allen) Screw M20 x 60mm in A4 Stainless
WF79691

Socket Head Csk (Allen) Screw M20 x 65mm in A4 Stainless
WF79692

Socket Head Csk (Allen) Screw M20 x 70mm in A4 Stainless
WF79693

Socket Head Csk (Allen) Screw M20 x 75mm in A4 Stainless
WF79829

Socket Head Countersunk Screw M20 x 80mm in A4 Stainless
WF32839

Socket Head Csk (Allen) Screw M20 x 90mm in A4 Stainless
WF79831

Socket Head Countersunk Screw M20 x 100mm in A4 Stainless
WF70662

Socket Head Countersunk Screw M20 x 110mm in A4 Stainless
WF34489

Socket Head Countersunk Screw M20 x 120mm in A4 Stainless
WF34491

Socket Head Csk (Allen) Screw M20 x 140mm in A4 Stainless
WF79827

Socket Head Countersunk Screw M20 x 200mm in A4 Stainless
WF68577

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.