work, hereby publish it under the following license: English Screw Head. Non-intersecting Holes author name string: Andrew Pertsev Wikimedia username: Andrew...
href="https://archive.org/details/sim_telephony_1914-02-07_66_6" rel="nofollow">sim_telephony_1914-02-07_66_6</a>. Language English Publication date 31 January...
'rivets' and 'rivet heads' these three fixing points may alternatively be screws or bolts. The presence of drive slots on the heads suggests that the projections...
cylindrical projection. The lower projection is closed by a slotted, screw headed plug, the end of thread is just visible on the plug. The lower cylinder...
GFDL·migration=relicense Screw.agr.jpg ArnoldReinhold GFDL·migration=relicense SPAX thread 2.jpg Afrank99 self·cc-by-sa-2.5 Wood screw sidescetch use unfortunate...
ead the ILN WRECK OF THE EARL PERCY STEAM-SHIP AT TYNEMOUTH. THE iron screw-steamer Earl Percy, 400 tons burden, belonging to the Tyne Steanm-shipping...
.jpg){kind=link}
.jpg){kind=link}
