Specification for plain hexagonal thin nut (of Class 3B UNJ thread)
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General requirements for steel protruding-head bolts of tensile strength 1250 MPa (180000 lbf/in<sup>2</sup>) or greater
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Aerospace series. Specification for Hexagonal castle nuts (of Class 3B UNJ thread)
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Specification for hexagonal castle nuts (of Class 3B UNJ thread)
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Specification for slotted hexagonal thick nuts (of Class 3B UNJ thread)
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Specification for slotted hexagonal shear nuts (of Class 3B UNJ thread)
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![BS +A 254;+A 255 [...]:1976](/p-img/aHR0cHM6Ly9pbWFnZXMudGVjaHN0cmVldC5jb20vY292ZXJhcnQvZGVmYXVsdHMvMjUxMzcxMi9zdGQuanBn.jpg)
Specification. Hexagonal head titanium alloy bolts 160 000 lbf/in<sup>2</sup> (1100 MPa)
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Specification for Hi-torque speed drive recess: dimensions and gauging for countersunk head fasteners
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![BS A 260; A 261 [...]:1976](/p-img/aHR0cHM6Ly9pbWFnZXMudGVjaHN0cmVldC5jb20vY292ZXJhcnQvMi8wLzAvMTI0OTIwMC5qcGc.jpg)
![BS +A 260;+A 261 [...]:1976](/p-img/aHR0cHM6Ly9pbWFnZXMudGVjaHN0cmVldC5jb20vY292ZXJhcnQvZGVmYXVsdHMvMjUxMjUxMi9zdGQuanBn.jpg)