head screw types Fundamentals Explained
This can be the standard, straight-line slot that a flat-blade screwdriver fits into. Whilst not as popular because they was, slotted screws remain made use of for his or her simplicity and common accessibility.ASME B18.two.9 "Straightness Gage and Gaging for Bolts and Screws" was made to handle this challenge. For each the scope in the standard, i