TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 Change 2 F–5 Thread patterns are designed as follows: NOTE Unless followed with –LH (e.g., 3/4–1 OUNC–2A–LH), threads are right-handed. Nominal size No. Threads/in. Thread symbol Thread class 3/4 10 UNC 2A NOMINAL DIAMETER GRIP LENGTH HEIGHT OF NUT BODY LENGTH THREAD LENGTH THREAD RUNOUT LENGTH THICKNESS OR HEIGHT OF HEAD LENGTH (BOLT SHAFT) F–5 FASTENER GRADE In addition to being classified by thread type, threaded fasteners are also classified by material. The most familiar fastener classification system is the SAE grading system (Table F–4).