Round Head Metric Screw M4, 40mm thread length. Pitch: 0.7mm.

* Head diamter: 6.6MM

* Pack Count: 100PK

* Drive type: Phillips.

* Made from carbon steel material.

* You can order matching nut by following this link: https://www.ebay.com/itm/303742238987

* Non-continental customers, please contact us for additional freight to your area.