THE GREATEST GUIDE TO TYPES OF SCREW HEADS

The ‘oval trim’ head is the same as the typical ‘oval’ head, but which has a lesser diameter and countersink. in all probability the most common are Nos. 1 and 2, While No. 0 will likely be essential for a few extremely small screws and 3 and four for big screws. (See the Point read more / Bit measurement manual for information about Phill