{"format":"cadcraft-library-item","format_version":1,"uuid":"a8977d93-6fc2-4381-aa09-c4cdf1af676c","version":1,"name":"Hex bolt 3/8-16 UNC × 1-1/2 in, ASME B18.2.1","kind":"detail","category":"details/generic","description":"Hex bolt, thread 3/8 in, 16 threads per inch, across flats 14.3 mm, head 6.4 mm, length 38.1 mm, thread 25.4 mm. Side view across corners; thread drawn by the ISO 6410 convention. Dimensions from ASME B18.2.1. Weight from the nominal shape in steel (7850 kg/m³), threads not taken off.","maker":"","model":"","ifc":{"class":"IfcBuildingElementProxy","predefined":"NOTDEFINED"},"plan":{"layers":[{"name":"PART","color":7},{"name":"PART-THIN","color":8},{"name":"PART-CENTER","color":1},{"name":"PART-HIDDEN","color":4},{"name":"PART-FILL","color":254}],"entities":[{"type":"poly","layer":"PART","color":null,"pts":[[-8.249,0],[8.249,0],[8.249,6.35],[-8.249,6.35]],"closed":true},{"type":"line","layer":"PART","color":null,"x1":-4.124,"y1":0,"x2":-4.124,"y2":6.35},{"type":"line","layer":"PART","color":null,"x1":4.124,"y1":0,"x2":4.124,"y2":6.35},{"type":"poly","layer":"PART","color":null,"pts":[[-4.762,0],[-4.762,-36.512],[-3.175,-38.1],[3.175,-38.1],[4.762,-36.512],[4.762,0]],"closed":false},{"type":"line","layer":"PART-THIN","color":null,"x1":-3.789,"y1":-36.512,"x2":-3.789,"y2":-12.7},{"type":"line","layer":"PART-THIN","color":null,"x1":3.789,"y1":-36.512,"x2":3.789,"y2":-12.7},{"type":"line","layer":"PART","color":null,"x1":-4.762,"y1":-12.7,"x2":4.762,"y2":-12.7},{"type":"line","layer":"PART-CENTER","color":null,"x1":0,"y1":9.35,"x2":0,"y2":-41.1}]},"body":null,"params":{"width":16.5,"depth":44.4,"height":14.3,"weight_kg":0.0301},"source_attrs":{"CC-PART-TYPE":"Hex bolt","CC-PART-STD":"ASME B18.2.1","CC-PART-SIZE":"3/8-16 UNC × 1-1/2 in","CC-PART-MATERIAL":"Steel","CC-PART-LENGTH":"38.1"},"license":{"id":"CC0-1.0","holder":"CadCraft","attribution":"“Hex bolt 3/8-16 UNC × 1-1/2 in, ASME B18.2.1” by CadCraft, dimensions from ASME B18.2.1 (https://www.asme.org/codes-standards/find-codes-standards/b18-2-1-square-hex-heavy-hex-askew-head-bolts-hex-heavy-hex-hex-flange-lobed-head-lag-screws), CC0 1.0 (https://creativecommons.org/publicdomain/zero/1.0/).","url":"https://creativecommons.org/publicdomain/zero/1.0/"},"provenance":{"library":"librarycraft","item":"a8977d93-6fc2-4381-aa09-c4cdf1af676c","version":1,"sha256":"6655acac0da833e2f6e4705f13ed6e39ba56777924a5666b3b777a4c1a67e43d","source_file":"hex-bolt-3-8-16-unc-x-1-1-2-in-asme-b18-2-1.item.json","source_sha256":"8448064dac2e540c042278bda6a35eff31ab717b987e5b6a99ffd607248b9b74","published_at":"2026-10-14T21:00:39Z"}}