McMaster-Carr logo
    Filter by
    System of Measurement
    Thumb Nut Profile
    Thumb Nut Grip Type
    Thread Type
    Industrial Info Compare
    Thread Direction
    DFARS Specialty Metals
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Specifications Met
    Thread Spacing
    Industrial Info Compare
    Hex Length
    Attribute Image
    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)
    21 Products

    Flanged Knurled-Head Thumb Nuts

    Image of Attribute. Front orientation. Contains Annotated. Thumb Nuts. Flanged Knurled-Head Thumb Nuts.
    The slip-resistant head is easy to grip, while the flange distributes pressure evenly across the mounting surface without the need for a separate washer. These nuts are often used to secure screws in oversized or irregularly shaped holes since the flange covers a larger area than standard nuts.
    Corrosion-Resistant Stainless Steel
    Passivated 18-8 Stainless Steel—With an added layer of protection, these nuts stand up to strong acids and other harsh chemicals.
    Collar
    Thread Size
    Dia.
    Ht.
    Head
    Dia.
    Ht.
    Threading
    Each
    Passivated 18-8 Stainless Steel
    6-32
    		11/32"5/32"3/8"9/32"Fully Threaded95150A13900000
    8-32
    		3/8"5/32"7/16"9/32"Fully Threaded95150A1410000
    10-24
    		13/32"3/16"1/2"11/32"Fully Threaded95150A1420000
    10-32
    		13/32"3/16"1/2"11/32"Fully Threaded95150A1430000
    1/4"-20
    		15/32"7/32"9/16"3/8"Fully Threaded95150A1440000
    1/4"-28
    		15/32"7/32"9/16"3/8"Fully Threaded95150A1310000
    5/16"-18
    		17/32"7/32"5/8"13/32"Fully Threaded95150A1450000
    3/8"-16
    		5/8"1/4"3/4"15/32"Fully Threaded95150A1460000
    3/8"-24
    		5/8"1/4"3/4"15/32"Fully Threaded95150A1330000
    7/16"-14
    		11/16"5/16"1"17/32"Fully Threaded95150A1340000
    1/2"-13
    		3/4"3/8"1"5/8"Fully Threaded95150A1360000
    M2.5 × 0.45 mm5 mm3 mm6 mm6 mmFully Threaded96445A1200000
    M3 × 0.5 mm6 mm3 mm8 mm6 mmFully Threaded96445A1400000
    M4 × 0.7 mm9 mm4 mm10 mm7 mmFully Threaded96445A1800000
    M5 × 0.8 mm11 mm5 mm13 mm9 mmFully Threaded96445A2100000
    M6 × 1 mm12 mm5 mm13 mm9 mmFully Threaded96445A2300000
    M8 × 1.25 mm16 mm6 mm19 mm12 mmFully Threaded96445A25000000
     

    Inch-to-Inch Male-Female Hex Thread Adapters

    Image of Product. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Inch Male-Female Hex Thread Adapters.
    Image of Attribute. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Inch Male-Female Hex Thread Adapters.
    Change thread sizes or types, such as fine to coarse threads, on parts without changing gender. These adapters can also be used as standoffs to position components in assemblies and to create space between parts. They have an external hex, so you can tighten them with a wrench.
    ASTM A582—Adapters that meet ASTM specifications are made from or plated with materials that adhere to specific standards for chemical and physical properties, such as hardness.
    NAS1829C3B08, NAS1829C4D08, NAS1829C6F08, and NAS1829C6H12—Adapters that meet NAS standards are made to specific dimensions and are finished with an extra layer of rust protection. Aluminum adapters that meet NAS standards have a yellow-chromate plating, and stainless steel adapters have been passivated.
    Thread
    Lg.
    Gender
    Thread
    Fit
    Hex
    Thread
    Size (A)
    Thread
    Size (B)
    (A)
    (B)
    (A)
    (B)
    (A)
    (B)
    Size
    Length
    Specs. Met
    Tensile Strength,
    psi
    Hardness
    Each
    Passivated 18-8 Stainless Steel
    4-40
    		2-56
    		3/16"3/16"MaleFemaleUnified Standard Class 2A
    		Unified Standard Class 2B
    		3/16"1/2"ASTM A582, NAS1829C3B0885,000Rockwell B8091159A11500000
    6-32
    		4-40
    		1/4"1/4"MaleFemaleUnified Standard Class 2A
    		Unified Standard Class 2B
    		1/4"1/2"ASTM A582, NAS1829C4D0885,000Rockwell B8091159A1160000
    8-32
    		6-32
    		3/8"3/8"MaleFemaleUnified Standard Class 2A
    		Unified Standard Class 2B
    		3/8"1/2"ASTM A582, NAS1829C6F0885,000Rockwell B8091159A1170000
    10-32
    		8-32
    		3/8"7/16"MaleFemaleUnified Standard Class 2A
    		Unified Standard Class 2B
    		3/8"3/4"ASTM A582, NAS1829C6H1285,000Rockwell B8091159A1180000
     
    back to top