Bolt group — where it appears
The connection is not a point, and every diagram on this site says it is
Every free body drawn here has joined its members at points. Real structures fail at the joints far more often than in the members, and the reason is that a joint is exactly the region the theory behind every other page explicitly excludes.
The bolt that carries more than its share
Six bolts, one hundred kilonewtons, and a worst bolt carrying fifty. The load is shared equally and the torque is not, and the second one is invisible on any drawing where the connection is a point.
The tear that goes diagonally, and the correction that has no derivation
Stagger the holes so that no straight line crosses more than one and the plate does not get its strength back. The tear runs at an angle instead, and the arithmetic that makes it come out right is a century-old piece of curve-fitting nobody has improved on.
The hole that goes oval, and the one that tears to the edge
A bolt pressing on the side of its hole either crushes the plate in front of it or shoves a channel of metal out to the end. Which one happens is decided entirely by a distance that is usually set by a minimum in a table.
Named alongside it
The objects these essays reach for when they reach for this one.
ConnectionEccentricityUltimate strengthBearingDisturbed regionDuctilityEfficiencyEmpirical ruleEnd distanceFree body diagramInstantaneous centreJoint