AN UNBIASED VIEW OF TYPES OF SCREW HEADS

such a screw is really a non-structural fastener. It is supposed to get tightened and loosened by hand utilizing the ridged sides. Some may also be made which has a important-like flat facet or fashioned for flat or Phillip head screwdrivers. distinct head patterns may be coupled with several screw types, like lag bolts for heavy lumber or twinfas