Left Hand Nuts - (USS) Coarse Thread

Left Hand Nuts - (USS) Coarse Thread

Left hand nuts tighten counterclockwise and loosen clockwise, which is the opposite of standard nuts. They are used on rotating parts where a normal right hand nut would work loose, and on turnbuckles that need one right hand and one left hand thread. We stock Grade 5 plain steel left hand hex nuts in USS coarse thread from 1/4"-20 through 1-1/2"-6. Grade 2 and Grade 8, plain or plated, are available on request.

Specifications

• Thread: left hand, USS coarse (UNC)
• Stock: Grade 5, plain steel
• Sizes: 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14, 1/2"-13, 5/8"-11, 3/4"-10, 7/8"-9, 1-1/8"-7, 1-1/4"-7, 1-3/8"-6, 1-1/2"-6
• Grade 2 and Grade 8, plain or plated, supplied on request

Common Uses

• Turnbuckles and adjustable tie rods
• Mower blades, grinders and other rotating shafts
• Left hand threaded rod

FAQ

How can I tell if a thread is left hand?
Hold the bolt upright. If the threads slope up to the left, it is left hand. Right hand threads slope up to the right.

Do you have left hand threaded rod to match?
Ask us. Contact our sales team with your size and quantity.

Related: Fine thread version | All Left Hand Nuts

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