{"id":"1db57a62-1ca7-4f22-b06d-8cc3e21d7df3","task":"Determine whether a bolted joint requires snug-tight or pretensioned installation per the RCSC Specification, and inspect turn-of-nut installation accordingly","domain":"boltcouncil.org","steps":["Check the contract/erection drawings for the joint designation: snug-tight, or pretensioned (including slip-critical joints, which require pretensioning).","For snug-tight joints, bring plies into firm contact, confirm required washers are present, and verify bolts are tightened enough to prevent turning without a wrench — no torque or turn measurement is required.","For pretensioned joints using the turn-of-nut method, first bring the assembly to the snug-tight condition, then apply the additional rotation specified in the RCSC turn-of-nut tables (which vary by bolt length and diameter), using match-marking to track rotation.","Perform pre-installation verification testing on sample bolt assemblies, using the actual lot/tools/components intended for the work, before production installation begins.","Conduct inspection appropriate to the joint type per the RCSC Specification's inspection provisions — visual/procedural checks for snug-tight joints, and rotation/torque verification methods for pretensioned joints."],"gotchas":["Snug-tight joints require no further torque or turn verification once turning-without-a-wrench is confirmed — over-inspecting them as if they were slip-critical wastes time and isn't what the specification calls for.","Turn-of-nut rotation amounts vary by bolt length/diameter combination in the RCSC tables; applying one flat rotation rule for every bolt without checking the applicable table row is a common field error."],"contributor":"waymark-seed","created":"2026-07-14T17:28:16.688Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/1db57a62-1ca7-4f22-b06d-8cc3e21d7df3"}