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    59 Products

    Hex Nuts

    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    Image of Specification. Front orientation. Hex Nuts. Hex Nuts.

    The most commonly used hex nuts, these are suitable for fastening most machinery and equipment.
    Low-Strength Steel
    Rated Grade 2, Class 6, or lower, these nuts are about half as strong as medium-strength nuts. They are suitable for light duty fastening applications, such as securing access panels. Use them with screws that have a similar strength rating to avoid stripping threads during installation.
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Thread
    Size
    Wd.
    Ht.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    6-40
    5/16"7/64"ASME B18.2.210090480A17500000
     
    Corrosion-Resistant Stainless Steel
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to the harsh chemicals that 316 stainless steel can.
    Highly Corrosion-Resistant Black-Oxide 316 Stainless Steel—Combines a finished appearance with the rust resistance of 316 stainless steel. Even if the coating wears off, these nuts will hold up in just about any environment, including salt water and most chemicals.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    6-40
    5/16"7/64"10091841A17500000
     
    Black-Oxide 18-8 Stainless Steel
    6-40
    5/16"7/64"5097149A1360000
     
    Highly Corrosion-Resistant Black-Oxide 316 Stainless Steel
    6-40
    5/16"7/64"190242A1810000
     
    Brass
    Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Brass
    6-40
    5/16"7/64"10092671A175000000
     
    Plastic
    Nylon 6/6— The most common plastic nuts, these are good for general purpose fastening. They are slippery and abrasion resistant, so they thread on smoothly and stand up to daily wear and tear. Nylon will swell and weaken when exposed to moisture, so these nuts are best for dry environments.
    Temp.,
    ° F
    Thread
    Size
    Wd.
    Ht.
    Min.
    Max.
    Choose a Color
    Pkg.
    Qty.
    Pkg.
    Nylon 6/6
    6-40
    5/16"1/8"-40185
    Black
    ,
    Off-White
    10094812A663000000
     

    Nylon-Insert Locknuts

    Image of Product. Front orientation. Locknuts. Nylon-Insert Locknuts.
    Versatile yet economical, these are the most commonly used locknuts. The nylon insert grips the screw to prevent loosening from moderate vibration without damaging threads. However, the insert may become brittle if exposed to high temperatures. These locknuts are reusable a handful of times, but the holding power decreases with each use.
    Corrosion-Resistant Stainless Steel
    18-8 Stainless Steel—The choice for wet and outdoor environments, these locknuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to the harsh chemicals that 316 stainless steel can.
    Thread
    Size
    Wd.
    Ht.
    Insert Max.
    Temp., ° F
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    6-40
    5/16"11/64"22010091831A12200000
     
    Black-Oxide 18-8 Stainless Steel
    6-40
    5/16"11/64"2202594407A11100000
     

    Flange Nuts

    Image of Product. Front orientation. Flange Nuts. Flange Nuts.
    No need for a separate washer—these nuts have a plain flange that distributes pressure evenly for a wide variety of fastening applications. They are ideal for securing screws in oversized or irregularly shaped holes since the flange covers a larger area than standard nuts. Also known as collar nuts.
    Corrosion-Resistant Stainless Steel
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Flange
    Thread
    Size
    Wd.
    Ht.
    Dia.
    Thk.
    Each
    18-8 Stainless Steel
    6-40
    5/16"11/64"13/32"0.05"94758A20500000
     

    Cap Nuts

    Image of Product. Front orientation. Cap Nuts. Cap Nuts.
    Conceal and protect protruding screw threads while fastening parts together. These nuts help prevent damage to surrounding materials and reduce injuries. Also known as acorn nuts, they have a smooth, rounded head that creates a finished look.
    Stainless Steel
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Pkg.
    Thread
    Size
    Thread
    Dp.
    Wd.
    Ht.
    Pkg.
    Qty.
    1-9
    10-49
    50-Up
    18-8 Stainless Steel
    6-40
    5/32"5/16"11/32"1091855A68000000000000000000
     
    Low-Strength Steel
    Rated Grade 2, Class 6, or lower, these nuts are about half as strong as medium-strength steel nuts. They are suitable for light duty fastening applications, such as securing access panels. Use them with screws that have a similar strength rating to avoid stripping threads during installation.
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Pkg.
    Thread
    Size
    Thread
    Dp.
    Wd.
    Ht.
    Pkg.
    Qty.
    1-9
    10-49
    50-Up
    Zinc-Plated Steel
    6-40
    5/32"5/16"11/32"1091875A469000000000000000
     

    Key-Locking Threaded Inserts for Soft Metal

    Image of Product. Bottom orientation. Threaded Inserts. Key-Locking Threaded Inserts for Soft Metal.
    Add strong threads in soft metal, such as aluminum. The keys on these inserts drive into holes to hold more securely than thread-locking or helical inserts. They prevent slipping and rotating, so they’re stable enough for use in vehicle or aerospace parts that experience heavy vibration. These inserts are comparable to Keensert inserts.
    To install, drill and tap a hole in your material. Then, thread the insert onto the installation tool and screw it into the hole. Place the tool over the keys and hit it with a hammer to drive them in.
    Thin Wall—Use these inserts near the edge of workpieces or wherever you only have space for a small hole. They're also lighter than standard and extra-thick wall inserts for applications with strict weight limitations.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
    Inserts
    Installation
    Tools
    Each
    Thread
    Size
    For Tap Thread
    Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    No. of Locking
    Keys
    1-9
    10-Up
    Each
    Thin Wall
     
    18-8 Stainless Steel
    0-80
    6-40
    0.109"31 Ga.
    0.120"293340A9010000000000006721N11000000
    2-56
    6-40
    0.109"31 Ga.
    0.120"293340A902000000000093904A71100000
     

    Inch-to-Metric Male-Female Hex Thread Adapters

    Image of Product. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Metric Male-Female Hex Thread Adapters.
    Image of Attribute. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Metric Male-Female Hex Thread Adapters.
    Change inch threads to metric with these adapters, or swap metric threads for inch. An external hex lets you tighten or loosen them with a wrench. You can also use them to increase or reduce your thread size, or to create space between parts in an assembly.
    18-8 Stainless Steel—18-8 stainless steel adapters can be used in wet environments, but chemicals or salt water will cause staining and rust spots.
    316 Stainless Steel—For areas exposed to salt water or chemicals, 316 stainless steel adapters are the best choice. Only harsh chemicals, such as hydrochloric acid, will cause them to corrode.
    ASTM A276 and 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.
    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
    18-8 Stainless Steel
     
    Inch to Metric
    6-40
    M4 x 0.7 mm1/4"1/8"MaleFemaleUnified Standard Class 2A
    Metric Class 6H
    1/4"1/2"ASTM A58285,000Rockwell B8092499A70000000
    6-40
    M5 x 0.8 mm1/4"1/8"MaleFemaleUnified Standard Class 2A
    Metric Class 6H
    1/4"1/2"ASTM A58285,000Rockwell B8092499A7010000
     
    Metric to Inch
    M4 x 0.7 mm6-40
    3/8"1/4"MaleFemaleMetric Class 6g
    Unified Standard Class 2B
    3/8"1/2"ASTM A58285,000Rockwell B8092499A3490000
    M5 x 0.8 mm6-40
    3/8"7/16"MaleFemaleMetric Class 6g
    Unified Standard Class 2B
    3/8"3/4"ASTM A58285,000Rockwell B8092499A3570000
     
    316 Stainless Steel
     
    Inch to Metric
    6-40
    M4 x 0.7 mm1/4"1/8"MaleFemaleUnified Standard Class 2A
    Metric Class 6H
    1/4"1/2"ASTM A27675,000Rockwell B8391645A1010000
    6-40
    M5 x 0.8 mm1/4"1/8"MaleFemaleUnified Standard Class 2A
    Metric Class 6H
    1/4"1/2"ASTM A27675,000Rockwell B8391645A1020000
     

    Seize-Resistant Swage-Locking Threaded Inserts

    Image of Product. Bottom orientation. Threaded Inserts. Seize-Resistant Swage-Locking Threaded Inserts.
    Image of Specification. Front orientation. Contains Annotated. Threaded Inserts. Seize-Resistant Swage-Locking Threaded Inserts.
    Smoothly install these inserts for strong threads near the edges and corners of soft metal surfaces. They’re lubricated to prevent sticking as you thread them in. Since these have thinner walls than our key-locking and thread-locking inserts, they don’t need as much space and won't bulge or crack the material. The knurls press (swage) into the material to keep inserts in place when you tighten or loosen a screw.
    To install these inserts, you need a drill bit, a counterbore, a standard tap, an installation tool, and a hammer. Drill a hole, counterbore the top, and tap it. Place the insert into the installation tool, then hand-tighten it into the tapped hole. Strike the tool to secure the insert and drive the knurls into the surrounding material.
    High-Strength Dry-Film-Lubricated Cadmium-Plated Alloy Steel—Stronger than our 17-4 PH stainless steel inserts, these inserts absorb impact without cracking and stand up to high-pressure applications. The cadmium plating prevents corrosion in wet environments.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Inserts
    Installation
    Tools
    For
    Counterbore
    Thread
    Size
    For Tap Thread
    Size
    Installed
    Lg.
    For Max.
    Hole Dia.
    Dia.
    Dp.
    Mil. Spec.
    Each
    Each
    High-Strength Dry-Film-Lubricated Cadmium-Plated Alloy Steel
    2-56
    6-40
    0.141"0.113"0.138"0.045"MIL-DTL-45932/193572A101000006645N1010000000
     

    Inch-to-Inch Female Hex Thread Adapters

    Image of Product. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Inch Female Hex Thread Adapters.
    Image of Attribute. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Inch Female Hex Thread Adapters.
    Connect two differently sized male-threaded parts, such as threaded rods, and tighten with a standard wrench. The threads on these adapters have various sizes and spacing, so you can increase or decrease thread size or adapt from coarse to fine threading. You can also use them to change the gender of a connection from male to female. Small adapters can work as threaded standoffs, which position and separate circuit boards and other components in assemblies.
    18-8 Stainless Steel—18-8 stainless steel adapters withstand wet environments but will corrode when exposed to salt water and other chloride solutions.
    316 Stainless Steel—316 stainless steel adapters are ideal in wet environments and will not corrode when exposed to salt water or harsh chemicals.
    ASTM A276 and 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.
    Thread
    Lg.
    Thread
    Fit
    Hex
    Each
    Thread
    Size (A)
    Thread
    Size (B)
    (A)
    (B)
    (A)
    (B)
    Size
    Length
    Specs.
    Met
    Tensile Strength,
    psi
    Hardness
    1-9
    10-Up
    18-8 Stainless Steel
    4-40
    6-40
    9/64"9/64"Unified Standard Class 2B
    Unified Standard Class 2B
    5/16"1/2"ASTM A58285,000Rockwell B8091072A1020000000000
    6-32
    6-40
    9/64"9/64"Unified Standard Class 2B
    Unified Standard Class 2B
    5/16"1/2"ASTM A58285,000Rockwell B8091072A10400000000
    6-40
    8-32
    11/64"11/64"Unified Standard Class 2B
    Unified Standard Class 2B
    5/16"5/8"ASTM A58285,000Rockwell B8091072A10600000000
     
    316 Stainless Steel
    6-40
    8-32
    11/64"11/64"Unified Standard Class 2B
    Unified Standard Class 2B
    5/16"5/8"ASTM A27675,000Rockwell B8391072A19200000000
     

    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.
    18-8 Stainless Steel—18-8 stainless steel adapters resist corrosion in wet environments but will corrode when exposed to salt water and chemicals. They may be mildly magnetic.
    316 Stainless Steel—316 stainless steel adapters are for use in wet environments and have the best corrosion resistance. Unlike 18-8 stainless steel adapters, they resist corrosion caused by salt water and chemicals. They may be mildly magnetic.
    ASTM A276 and 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.
    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
    18-8 Stainless Steel
    6-40
    4-40
    1/4"1/4"MaleFemaleUnified Standard Class 2A
    Unified Standard Class 2B
    1/4"1/2"ASTM A58285,000Rockwell B8092499A10300000
    6-40
    6-32
    1/4"7/16"MaleFemaleUnified Standard Class 2A
    Unified Standard Class 2B
    3/8"3/4"ASTM A58285,000Rockwell B8092499A1040000
    6-40
    8-32
    1/4"7/16"MaleFemaleUnified Standard Class 2A
    Unified Standard Class 2B
    3/8"3/4"ASTM A58285,000Rockwell B8092499A1050000
     
    316 Stainless Steel
    6-40
    4-40
    1/4"1/4"MaleFemaleUnified Standard Class 2A
    Unified Standard Class 2B
    1/4"1/2"ASTM A27675,000Rockwell B8391155A1010000
     

    Inch-to-Inch Male Hex Thread Adapters

    Image of Product. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Inch Male Hex Thread Adapters.
    Image of Attribute. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Inch Male Hex Thread Adapters.
    Need to join two female-threaded parts, such as coupling nuts, with dissimilar inch thread sizes? Attach them to these adapters and tighten the exterior hex nut for a secure connection. You can also use these adapters to change the gender of a mating part from female to male, increase or decrease the thread size, or convert the threads from fine to coarse (and vice versa). The smaller adapters act as threaded standoffs, positioning and separating circuit boards and other components in assemblies.
    18-8 Stainless Steel—18-8 stainless steel adapters resist corrosion caused by water. They're good for wet and damp environments but will corrode when exposed to salt water and other chloride solutions.
    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.
    Thread
    Lg.
    Thread
    Fit
    Hex
    Thread
    Size (A)
    Thread
    Size (B)
    (A)
    (B)
    (A)
    (B)
    Size
    Length
    Specs.
    Met
    Tensile Strength,
    psi
    Hardness
    Certificate
    Form
    Certificate Type
    Each
    18-8 Stainless Steel
    4-40
    6-40
    3/16"1/4"Unified Standard Class 2A
    Unified Standard Class 2A
    1/4"1/8"ASTM A58285,000Rockwell B80Digital
    Material Certificate with Traceable Lot Number
    95316A38300000
    4-48
    6-40
    3/16"1/4"Unified Standard Class 2A
    Unified Standard Class 2A
    1/4"1/8"ASTM A58285,000Rockwell B80Material Certificate with Traceable Lot Number
    95316A4080000
    6-32
    6-40
    1/4"1/4"Unified Standard Class 2A
    Unified Standard Class 2A
    1/4"1/8"ASTM A58285,000Rockwell B8095316A4140000
    6-40
    8-32
    1/4"3/8"Unified Standard Class 2A
    Unified Standard Class 2A
    1/4"1/8"ASTM A58285,000Rockwell B8095316A4160000
    6-40
    8-36
    1/4"3/8"Unified Standard Class 2A
    Unified Standard Class 2A
    1/4"1/8"ASTM A58285,000Rockwell B80Digital
    Material Certificate with Traceable Lot Number
    95316A4260000
     

    Helical Threaded Inserts

    Image of Product. Pronged. Bottom orientation. Threaded Inserts. Helical Threaded Inserts, Pronged.

    Pronged

    Restore, reinforce, or create threads in metal. The tough coils on these inserts expand once installed to anchor in a tapped hole. Also known as Heli-Coil inserts, they're often used in engine heads and machinery housings where strong connections are critical. Unlike threadlocking inserts, you can remove and reuse them without them losing their strength.
    Installation requires a drill bit, a helical insert tap, and an installation tool.
    Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
    Inserts
    Through-Hole
    Taps
    Closed-End
    Hole Taps
    Installation
    Tools
    Prong
    Break-Off Tools
    Thread
    Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Each
    Each
    Each
    Each
    Pronged
     
    18-8 Stainless Steel
    6-40
    0.138"25 Ga.
    0.150"MS1246531091732A0120000091709A06300000091709A41900000090261A106000000092955A105000000
    6-40
    0.207"25 Ga.
    0.150"MS1246931091732A014000091709A0630000091709A4190000090261A10600000092955A10500000
    6-40
    0.276"25 Ga.
    0.150"MS1247331091732A710000091709A0630000091709A4190000090261A10600000092955A10500000
     
    Extraction Tools

    Screw-Locking Helical Threaded Inserts

    Image of Product. Pronged. Bottom orientation. Threaded Inserts. Screw-Locking Helical Threaded Inserts, Pronged.

    Pronged

    The irregularly shaped threads tightly grip screws to prevent them from loosening or backing out under vibration. Use these inserts to create or repair threads in pumps and other machinery that shakes and rattles. Also known as Heli-Coil inserts.
    Installation requires a drill bit, a helical insert tap, and an installation tool.
    Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
    Inserts
    Through-Hole
    Taps
    Closed-End
    Hole Taps
    Installation
    Tools
    Prong
    Break-Off Tools
    Thread
    Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Each
    Each
    Each
    Each
    Pronged
     
    18-8 Stainless Steel
    6-40
    0.138"25 Ga.
    0.150"NASM21209, MS21209F06101090296A0240000091709A06300000091709A41900000090261A106000000092955A105000000
    6-40
    0.207"25 Ga.
    0.150"NASM21209, MS21209F0615590296A189000091709A0630000091709A4190000090261A10600000092955A10500000
    6-40
    0.276"25 Ga.
    0.150"NASM21209, MS21209F0620590296A190000091709A0630000091709A4190000090261A10600000092955A10500000
     

    Screw-Locking Seize-Resistant Key-Locking Threaded Inserts for Soft Metal

    Image of Product. Bottom orientation. Threaded Inserts. Screw-Locking Seize-Resistant Key-Locking Threaded Inserts for Soft Metal.
    Create the tightest hold in aluminum and other soft metal without screws sticking. The lubricant on these inserts eases installation, and the irregularly shaped threads won’t let screws back out from vibration. Inserts have keys that drive into material to prevent them from slipping or rotating in the hole.
    To install, drill and tap a hole in your material. Then, thread the insert onto the installation tool and screw it into the hole. Place the tool over the keys and hit it with a hammer to drive them in.
    Thin Wall—Use these inserts near the edge of workpieces or wherever you only have space for a small hole. They're also lighter than standard and extra-thick wall inserts for applications with strict weight limitations.
    Dry-Film-Lubricated 18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
    Inserts
    Installation
    Tools
    Thread
    Size
    For Tap Thread
    Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    No. of Locking
    Keys
    Each
    Each
    Thin Wall
     
    Dry-Film-Lubricated 18-8 Stainless Steel
    2-56
    6-40
    0.109"31 Ga.
    0.118"297255A11200000093904A711000000
     

    Swage-Locking Threaded Inserts

    Image of Product. Bottom orientation. Threaded Inserts. Swage-Locking Threaded Inserts.
    Image of Specification. Front orientation. Contains Annotated. Threaded Inserts. Swage-Locking Threaded Inserts.
    Add strong threads to the edges of soft metal without bulging or cracking the material. These inserts have thinner walls than our key-locking and thread-locking inserts, so they don’t need as much space around them. The knurls press (swage) into the material to keep inserts in place when you tighten or loosen a screw.
    To install these inserts, you need a drill bit, a counterbore, a standard tap, an installation tool, and a hammer. Drill a hole, counterbore the top, and tap it. Place the insert into the installation tool, then hand-tighten it into the tapped hole. Strike the tool to secure the insert and drive the knurls into the surrounding material.
    High-Strength 17-4 PH Stainless Steel—The strongest stainless steel inserts we offer. They handle high-stress installations, such as pump and compressor housings, and the heavy vibration of aircraft parts. They won’t rust in wet and outdoor environments but can’t withstand the harsh chemicals and acids that 316 stainless steel can.
    Inserts
    Installation
    Tools
    For
    Counterbore
    Thread
    Size
    For Tap Thread
    Size
    Installed
    Lg.
    For Max.
    Hole Dia.
    Dia.
    Dp.
    Mil. Spec.
    Each
    Each
    High-Strength 17-4 PH Stainless Steel
    2-56
    6-40
    0.141"0.113"0.138"0.045"MIL-DTL-45932/193570A1010000006645N1010000000
     

    Inch-to-Metric Female Hex Thread Adapters

    Image of Product. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Metric Female Hex Thread Adapters.
    Image of Attribute. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Metric Female Hex Thread Adapters.
    Adapt threaded rods from inch to metric. These adapters connect two male-threaded fasteners, so you can change the gender of a mating part or increase or decrease its thread size. The hex-shaped body fits into the head of a standard wrench. Small adapters can also be used as standoffs, positioning and separating circuit boards and other components in assemblies.
    18-8 Stainless Steel—18-8 stainless steel adapters resist corrosion caused by water. They're good for wet and damp environments but will corrode when exposed to salt water and other chloride solutions.
    316 Stainless Steel—316 stainless steel adapters have the best corrosion resistance. They stand up to wet environments, just like 18-8 stainless steel adapters, but unlike 18-8 stainless steel adapters, they resist corrosion caused by salt water and harsh chemicals.
    ASTM A276 and 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.
    Thread
    Lg.
    Thread
    Fit
    Hex,
    mm
    Each
    Thread
    Size (A)
    Thread Size
    (B)
    (A)
    (B),
    mm
    (A)
    (B)
    Size
    Length
    Specs.
    Met
    Tensile Strength,
    psi
    Hardness
    Certificate
    Form
    Certificate Type
    1-9
    10-Up
    18-8 Stainless Steel
    6-40
    M4 x 0.7 mm9/64"4Unified Standard Class 2B
    Metric Class 6H
    1111ASTM A58285,000Rockwell B8098434A7120000000000
    6-40
    M5 x 0.8 mm9/64"5Unified Standard Class 2B
    Metric Class 6H
    1111ASTM A58285,000Rockwell B80Digital
    Material Certificate with Traceable Lot Number
    98434A71300000000
     
    316 Stainless Steel
    6-40
    M4 x 0.7 mm9/64"4Unified Standard Class 2B
    Metric Class 6H
    1111ASTM A27675,000Rockwell B83Material Certificate with Traceable Lot Number
    91076A10100000000
    6-40
    M5 x 0.8 mm9/64"5Unified Standard Class 2B
    Metric Class 6H
    1111ASTM A27675,000Rockwell B83Material Certificate with Traceable Lot Number
    91076A10200000000
     

    Inch-to-Metric Male Hex Thread Adapters

    Image of Product. Front orientation. Contains Annotated. Thread Adapters. Inch-to-Metric Male Hex Thread Adapters.
    Image of Attribute. Front orientation. Thread Adapters. Inch-to-Metric Male Hex Thread Adapters.

    One side inch, one side metric, and a hex in the middle—these handy fasteners connect two female-threaded parts, such as coupling nuts, adapting from inch threads to metric. Tighten with a standard wrench.
    You can also use these adapters to change the gender of a mating part or increase or decrease its thread size. The small sizes work as standoffs, positioning and separating circuit boards and other components in assemblies.
    18-8 Stainless Steel—18-8 stainless steel adapters resist corrosion caused by water. They're good for wet and damp environments but will corrode when exposed to salt water and other chloride solutions.
    316 Stainless Steel—316 stainless steel adapters have the best corrosion resistance. They stand up to wet environments, just like 18-8 stainless steel adapters, but unlike 18-8 stainless steel adapters, they resist corrosion caused by salt water and harsh chemicals.
    ASTM A276 and 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.
    Thread
    Lg.
    Thread
    Fit
    Hex
    Thread
    Size (A)
    Thread Size
    (B)
    (A)
    (B),
    mm
    (A)
    (B)
    Size
    Length
    Specs.
    Met
    Tensile Strength,
    psi
    Hardness
    Certificate
    Form
    Certificate Type
    Each
    18-8 Stainless Steel
    6-40
    M4 x 0.7 mm1/4"9.5Unified Standard Class 2A
    Metric Class 6g
    1/4"1/8"ASTM A58285,000Rockwell B8091091A10300000
    6-40
    M5 x 0.5 mm1/4"9.5Unified Standard Class 2A
    Metric Class 6g
    1/4"1/8"ASTM A58285,000Rockwell B80Digital
    Material Certificate with Traceable Lot Number
    91091A1040000
    6-40
    M5 x 0.8 mm1/4"9.5Unified Standard Class 2A
    Metric Class 6g
    1/4"1/8"ASTM A58285,000Rockwell B8091091A1050000
     
    316 Stainless Steel
    6-40
    M4 x 0.7 mm1/4"9.5Unified Standard Class 2A
    Metric Class 6g
    1/4"1/8"ASTM A27675,000Rockwell B83Material Certificate with Traceable Lot Number
    91091A2430000
    6-40
    M5 x 0.8 mm1/4"9.5Unified Standard Class 2A
    Metric Class 6g
    1/4"1/8"ASTM A27675,000Rockwell B83Material Certificate with Traceable Lot Number
    91091A2440000
     

    Helical Threaded Insert Assortments with Installation Tools

    Image of Product. Front orientation. Threaded Inserts. Helical Threaded Insert Assortments with Installation Tools.
    Repair damaged threads or create new ones. These convenient assortments include helical inserts, an installation tool for each thread size, a drill bit, and a tap. The inserts are also known as Heli-Coil inserts.
    Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
    No. of Inserts
    Included
    Includes
    Thread
    Spacing
    Drill Bit
    Size
    For Max.
    Hole Dia.
    Each
    Pronged
     
    18-8 Stainless Steel
    366-40 Thread × 0.138" Installed Lg. (12 Each)
    6-40 Thread × 0.207" Installed Lg. (12 Each)
    6-40 Thread × 0.276" Installed Lg. (12 Each)
    Drill Bit
    Installation Tool
    Prong Break-Off Tool
    Through-Hole Tap
    Fine
    25 Ga.
    0.150"91732A9070000000
     
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