The 5-Second Trick For types of screw heads
Hex heads are used on heavier responsibility purposes in addition to apps exactly where it may be tough to make use of a screwdriver. sq. generate Teeny issue. The sq. head bolt has flat faces on The top, and so is clearly created to be driven having a spanner, not a wrench. Plain Finish Screws: These are screws which have no coating or finish. I