Aerospace Threads

Aerospace thread systems form the foundation of reliable fastening throughout aircraft and space-grade assemblies. At TorqBolt, we manufacture precision-engineered MJ, UNJ, and custom aerospace thread forms designed to deliver superior fatigue resistance, controlled root radii, and consistent load distribution. Each threaded component is produced to exacting international aerospace standards and fully traceable from raw material to final inspection. Our threading processes ensure exceptional compatibility, reduced stress concentrations, and long-term performance under high vibration, extreme temperatures, and cyclical loads encountered in aviation and space applications.

Aerospace Threads Materials

Titanium Grades 2 and Grade 5
Super Alloy a286, Waspalloy, Mp35n, Alloy 20
Inconel X750 / Inconel 718 / Nimonic 80a / Incoloy 925

Aerospace Threads Related Products

Aerospace Boltings Aerospace Bolts Aerospace Screws Aerospace Nuts Aerospace Pins Aerospace Nails Aerospace Rivets Aerospace Bushes Aerospace Clamps Aerospace Inserts Aerospace Rings Aerospace Sleeves Aerospace Washers

Aerospace Threads Products

Aerospace Threads BSI Series

BS-4084 - UNJ threads, with controlled root radius, for aerospace. Inch series
BS-A-346 - UNJ threads. General requirements and limit dimensions
BS-A-358-1 - MJ threads
BS-A-358-2 - MJ threads
BS-A-358-3 - MJ threads
BS-EN-3274 - Aerospace series. Pipe coupling 830'. Thread end. Geometric configuration
BS-EN-4178 - Aerospace series. Screws, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in titanium alloy, anodized, MoS2 lubricated. Classification: 1 100 MPa (at ambient temperature) / 315 C
BS-EN-4493 - Aerospace series. Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy NI-PH1801 (NIP96HT, Nimonic 90), silver plated
BS-ISO-10959 - Aerospace. MJ threads. Gauging
BS-ISO-10959-TC - Tracked Changes. Aerospace. MJ threads. Gauging
BS-ISO-15872 - Aerospace. UNJ threads. Gauging
BS-ISO-15872-TC - Tracked Changes. Aerospace. UNJ threads. Gauging
BS-ISO-3353-1 - Aerospace. Lead and runout threads
BS-ISO-3353-2 - Aerospace. Lead and runout threads
PD-CEN-17603-32-23 - Space engineering. Threaded fasteners handbook

Aerospace Threads ISO Series

ISO-10959 - Aerospace - MJ threads - Gauging
ISO-15872 - Aerospace - UNJ threads - Gauging
ISO-3161 - Aerospace -- UNJ threads -- General requirements and limit dimensions
ISO-3353 - Aerospace - Rolled threads for bolts - Lead and runout requirements
ISO-3353-1 - Aerospace - Lead and runout threads - Part 1: Rolled external threads
ISO-3353-2 - Aerospace - Lead and runout threads - Part 2: Internal threads
ISO-5855-1 - Aerospace -- MJ threads -- Part 1: General requirements
ISO-5855-2 - Aerospace -- MJ threads -- Part 2: Limit dimensions for bolts and nuts
ISO-5855-3 - Aerospace -- MJ threads -- Part 3: Limit dimensions for fittings for fluid systems

Aerospace Threads Other SDOs Series

EN-4178 - Aerospace series - Screws, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in titanium alloy, anodized, MoS2 lubricated - Classification: 1 100 MPa (at ambient temperature) / 315 Degrees C
EN-4493 - Aerospace Series - Inserts, Screw Thread, Helical Coil, Self-Locking, in Heat Resistin
SS-EN-4163 - Aerospace series - Screws 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 °C
SS-EN-4178 - Aerospace series - Screws, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in titanium alloy, anodized, MoS2 lubricated - Classification: 1 100 MPa (at ambient temperature) / 315 °C
SS-EN-4493 - Aerospace series - Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy NI-PH1801 (NI-P96HT, Nimonic 90), silver plated
SS-EN-4636 - Aerospace series - Screws, 100 degrees countersunk head, six lobe recess, short thread, in titanium alloy TI-P64001, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature) / 315 degrees Celsius
SS-ISO-10959 - Aerospace - MJ threads - Gauging
SS-ISO-15872 - Aerospace - UNJ threads - Gauging
SS-ISO-3353-1 - Aerospace - Lead and runout threads - Part 1: Rolled external threads
SS-ISO-3353-2 - Aerospace - Lead and runout threads - Part 2: Internal threads