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2. Security locknut - Wikipedia

   en.wikipedia.org/wiki/Security_locknut

   A security locknut [1] is a type of industrial fastener composed of two steel threaded parts: a nut body and an elliptical spring steel lock ring. Security locknuts are fastened onto a mating bolt to form a bolted joint. Forces of friction (with elastic deformation), a stretching of the bolt, and compression hold the bolted joint firmly together.

3. British Association screw threads - Wikipedia

   en.wikipedia.org/wiki/British_Association_screw...

   BS 93:1951 — Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A. BS 93:2008 — British Association (B.A.) screw threads — Requirements The angle of the thread is 47.5° [ 4 ] : 2 and the depth of thread is 0.6 times the pitch with rounded tops and bottoms.

4. Locknut - Wikipedia

   en.wikipedia.org/wiki/Locknut

   A locknut, also known as a lock nut, locking nut, self-locking nut, prevailing torque nut, [1] stiff nut [1] or elastic stop nut, [2] is a nut that resists loosening under vibrations and torque. Prevailing torque nuts have some portion of the nut that deforms elastically to provide a locking action. [ 2 ]

5. Nut (hardware) - Wikipedia

   en.wikipedia.org/wiki/Nut_(hardware)

   Mechanical specifications of Metric/English sized nuts [5] Material Proof strength Min. tensile yield strength Min. tensile ultimate strength Nut marking Nut class ISO 898 (Metric) Low or medium carbon steel 380 MPa (55 ksi) 420 MPa (61 ksi) 520 MPa (75 ksi) 5 Medium carbon steel Q&T: 580 MPa (84 ksi) 640 MPa (93 ksi) 800 MPa (116 ksi) 8 Alloy ...

6. ISO metric screw thread - Wikipedia

   en.wikipedia.org/wiki/ISO_metric_screw_thread

   Below are some common spanner sizes for metric screw threads. Hexagonal (generally abbreviated to "hex") head widths (width across flats, spanner size) are for DIN 934 hex nuts and hex head bolts. Other (usually smaller) sizes may occur to reduce weight or cost, including the small series flange bolts defined in ISO 4162 which typically have ...

7. List of thread standards - Wikipedia

   en.wikipedia.org/wiki/List_of_thread_standards

   Breech-Lock Thread Form: ASME B1.10M-2004 (R2014) Unified Miniature Screw Threads: V Thread Form: 0.60 UNM ANSI/ASME B1.11-1958 (R2016) Microscope Objective Thread: V Thread Form ASME B1.13M-2005 (R2015) Metric Screw Threads: M Profile: V Thread Form ASME B1.15-1995 (R2003) Unified Inch Screw Threads (UNJ Thread Form) V Thread Form ASME B1.20.1 ...

8. Distorted thread locknut - Wikipedia

   en.wikipedia.org/wiki/Distorted_thread_locknut

   A distorted thread locknut, [1] is a type of locknut that uses a deformed section of thread to keep the nut from loosening due to vibrations, or rotation of the clamped item. There are four types: elliptical offset nuts, centerlock nuts, toplock nuts and partially depitched (Philidas) nuts.

9. List of DIN standards - Wikipedia

   en.wikipedia.org/wiki/List_of_DIN_standards

   ISO Metric Trapezoidal Screw Threads; Limiting Sizes for Nut Threads from 8 to 100 mm Nominal Diameter: Active: DIN 103-6: ISO Metric Trapezoidal Screw Threads; Limiting Sizes for Nut Threads from 105 to 300 mm Nominal Diameter: Active: DIN 103-7: ISO Metric Trapezoidal Screw Threads; Limiting Sizes for Bolt Threads from 8 to 100 mm Nominal ...