McMaster-Carr logo
    Filter by
    Fastener Strength Grade/Class
    Industrial Info Snippet
    Nut Type
    Material
    System of Measurement
    Fastener Strength Rating
    Performance
    Thread Direction
    Thread Spacing
    Industrial Info Snippet
    Coupling Nut Profile
    Thread Type
    Drive Style
    Industrial Info Snippet
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    9 Products

    Coupling Nuts

    Image of Product. Front orientation. Coupling Nuts. Coupling Nuts.
    Also known as extension nuts, these are commonly used to connect lengths of threaded rod and join threaded parts.
    Extreme-Strength Steel
    Made from Grade 2H steel, these are about 20% stronger than high-strength steel coupling nuts. Use them with threaded rods that have a comparable strength rating to avoid stripping threads during installation.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Each
    Thread
    Size
    Lg.
    Wd.
    Fastener Strength
    Grade/Class
    Threading
    1-9
    10-Up
    Steel
    1/4"-20
    		7/8"1/2"ASTM Grade 2H
    		Fully Threaded000000000000000000000
    3/8"-16
    		1 3/4"11/16"ASTM Grade 2H
    		Fully Threaded0000000000000000000
    1/2"-13
    		1 3/4"7/8"ASTM Grade 2H
    		Fully Threaded0000000000000000000
    5/8"-11
    		2 1/8"1 1/16"ASTM Grade 2H
    		Fully Threaded0000000000000000000
    3/4"-10
    		2 1/4"1 1/4"ASTM Grade 2H
    		Fully Threaded0000000000000000000
    7/8"-9
    		2 1/2"1 1/2"ASTM Grade 2H
    		Fully Threaded0000000000000000000
    1"-8
    		2 3/4"1 5/8"ASTM Grade 2H
    		Fully Threaded0000000000000000000
    1 1/4"-7
    		3"2"ASTM Grade 2H
    		Fully Threaded0000000000000000000
    1 1/2"-6
    		3 1/2"2 1/2"ASTM Grade 2H
    		Fully Threaded0000000000000000000
     
    back to top