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M4 x 8mm HoloKrome Socket Countersunk (Allen) Screw in Black Oxide Steel 12.9 - ISO 10642 (DIN 7991)

Holo-Krome branded socket countersunk screws (or flat head screws), in alloy steel with a strength grade of 12.9, and a black oxide finish. Manufactured in the USA, Holo-Krome are high quality screws, similar to Unbrako, with precision 3A threads for greater clamping force. Conforming to ISO 10642/DIN 7991, these require a hex socket/allen key to fit. The countersunk head is used in conjunction with a countersunk hole or countersunk washer.
HoloKrome Socket Head Countersunk Screws in BO image
Holokrome logo
technical drawing of HoloKrome Socket Head Countersunk Screws
Technical Summary
Standard ISO 10642 (DIN 7991)
all dimensions in millimetres (mm)
HoloKrome Socket Head Countersunk Screws Standard
HoloKrome Technical Handbook
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Description Sale Qtys Qty Price Breakdown Despatch Estimate
M4 x 8mm HoloKrome Socket Countersunk (Allen) Screw in Black Oxide Steel 12.9
WF63475
£2.69
M4 x 8mm HoloKrome Socket Countersunk (Allen) Screw in Black Oxide Steel 12.9   WF63475
£2.69
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Holokrome logo
technical drawing of HoloKrome Socket Head Countersunk Screws
Technical Summary
Standard ISO 10642 (DIN 7991)
all dimensions in millimetres (mm)
HoloKrome Socket Head Countersunk Screws Standard
HoloKrome Technical Handbook
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