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    602 Products
    About Threaded Inserts
    industrial info icon

    Choose the right threaded insert for your application and learn how to install it securely.

    Threaded Insert Type

    Threaded Insert Type

    Screw-Locking Helical Threaded Inserts

    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 automobile parts 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. Easy-start installation tools compress the diameter of your insert so it fits easily into a tapped hole. These tools are the best choice for preventing misaligned or damaged threads—just make sure you have space to turn the crank.
    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.
    Prongless—Without a prong to break off and retrieve, these inserts save time and avoid leftover debris in holes.
    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
    Image of Product. Pronged. Bottom orientation. Threaded Inserts. Screw-Locking Helical Threaded Inserts, Pronged.

    Pronged

     
    18-8 Stainless Steel
    1-64
    		0.073"46 Ga.
    		0.081"—50000000000000000000000000000000000000000000000000000000000000000000000000000
    1-64
    		0.110"46 Ga.
    		0.081"—500000000000000000000000000000000000000000000000000000000000000000000000
    2-56
    		0.086"41 Ga.
    		0.096"NASM21209, MS21209C0210100000000000000000000000000000000000000000000000000000000000000000000000
    2-56
    		0.129"41 Ga.
    		0.096"NASM21209, MS21209C0215100000000000000000000000000000000000000000000000000000000000000000000000
    2-56
    		0.172"41 Ga.
    		0.096"NASM21209, MS21209C0220100000000000000000000000000000000000000000000000000000000000000000000000
    2-56
    		0.215"41 Ga.
    		0.096"NASM21209, MS21209C022510000000000000000000000000000000000000000000000000000000000000000000000
    3-48
    		0.099"7/64"
    		0.109"NASM21209, MS21209C0310500000000000000000000000000000000000000000000000000000000000000000000000
    3-48
    		0.148"7/64"
    		0.109"NASM21209, MS21209C03151000000000000000000000000000000000000000000000000000000000000000000000000
    3-56
    		0.099"36 Ga.
    		0.107"NASM21209, MS21209F03101000000000000000000000000000000000000000000000000000000000000000000000000
    3-56
    		0.148"36 Ga.
    		0.107"NASM21209, MS21209F0315500000000000000000000000000000000000000000000000000000000000000000000000
    4-40
    		0.112"31 Ga.
    		0.120"NASM21209, MS21209C04101000000000000000000000000000000000000000000000000000000000000000000000000
    4-40
    		0.168"31 Ga.
    		0.120"NASM21209, MS21209C04151000000000000000000000000000000000000000000000000000000000000000000000000
    4-40
    		0.224"31 Ga.
    		0.120"NASM21209, MS21209C0420500000000000000000000000000000000000000000000000000000000000000000000000
    4-40
    		0.280"31 Ga.
    		0.120"NASM21209, MS21209C0425500000000000000000000000000000000000000000000000000000000000000000000000
    4-40
    		0.336"31 Ga.
    		0.120"NASM21209, MS21209C0430100000000000000000000000000000000000000000000000000000000000000000000000
    4-48
    		0.112"31 Ga.
    		0.120"NASM21209, MS21209F04101000000000000000000000000000000000000000000000000000000000000000000000000
    4-48
    		0.168"31 Ga.
    		0.120"NASM21209, MS21209F04151000000000000000000000000000000000000000000000000000000000000000000000000
    5-40
    		0.125"29 Ga.
    		0.136"NASM21209, MS21209C05101000000000000000000000000000000000000000000000000000000000000000000000000
    5-40
    		0.188"29 Ga.
    		0.136"NASM21209, MS21209C05151000000000000000000000000000000000000000000000000000000000000000000000000
    5-40
    		0.250"29 Ga.
    		0.136"NASM21209, MS21209C0520500000000000000000000000000000000000000000000000000000000000000000000000
    6-32
    		0.138"25 Ga.
    		0.150"NASM21209, MS21209C0610100000000000000000000000000000000000000000000000000000000000000000000000
    6-32
    		0.207"25 Ga.
    		0.150"NASM21209, MS21209C0615100000000000000000000000000000000000000000000000000000000000000000000000
    6-32
    		0.276"25 Ga.
    		0.150"NASM21209, MS21209C062050000000000000000000000000000000000000000000000000000000000000000000000
    6-32
    		0.345"25 Ga.
    		0.150"NASM21209, MS21209C062550000000000000000000000000000000000000000000000000000000000000000000000
    6-32
    		0.414"25 Ga.
    		0.150"NASM21209, MS21209C063010000000000000000000000000000000000000000000000000000000000000000000000
    6-40
    		0.138"25 Ga.
    		0.150"NASM21209, MS21209F0610100000000000000000000000000000000000000000000000000000000000000000000000
    6-40
    		0.207"25 Ga.
    		0.150"NASM21209, MS21209F061550000000000000000000000000000000000000000000000000000000000000000000000
    6-40
    		0.276"25 Ga.
    		0.150"NASM21209, MS21209F062050000000000000000000000000000000000000000000000000000000000000000000000
    8-32
    		0.164"16 Ga.
    		0.177"NASM21209, MS21209C0810100000000000000000000000000000000000000000000000000000000000000000000000
    8-32
    		0.246"16 Ga.
    		0.177"NASM21209, MS21209C0815100000000000000000000000000000000000000000000000000000000000000000000000
    8-32
    		0.328"16 Ga.
    		0.177"NASM21209, MS21209C0820100000000000000000000000000000000000000000000000000000000000000000000000
    8-32
    		0.410"16 Ga.
    		0.177"NASM21209, MS21209C082510000000000000000000000000000000000000000000000000000000000000000000000
    8-32
    		0.492"16 Ga.
    		0.177"NASM21209, MS21209C083010000000000000000000000000000000000000000000000000000000000000000000000
    8-36
    		0.164"16 Ga.
    		0.177"NASM21209, MS21209F0810100000000000000000000000000000000000000000000000000000000000000000000000
    8-36
    		0.246"16 Ga.
    		0.177"NASM21209, MS21209F0815100000000000000000000000000000000000000000000000000000000000000000000000
    8-36
    		0.328"16 Ga.
    		0.177"NASM21209, MS21209F082050000000000000000000000000000000000000000000000000000000000000000000000
    10-24
    		0.190"5 Ga.
    		0.206"NASM21209, MS21209C1-10100000000000000000000000000000000000000000000000000000000000000000000000
    10-24
    		0.285"5 Ga.
    		0.206"NASM21209, MS21209C1-15100000000000000000000000000000000000000000000000000000000000000000000000
    10-24
    		0.380"5 Ga.
    		0.206"NASM21209, MS21209C1-2050000000000000000000000000000000000000000000000000000000000000000000000
    10-24
    		0.475"5 Ga.
    		0.206"NASM21209, MS21209C1-2510000000000000000000000000000000000000000000000000000000000000000000000
    10-32
    		0.190"13/64"
    		0.203"MS21209F1-10100000000000000000000000000000000000000000000000000000000000000000000000
    10-32
    		0.285"13/64"
    		0.203"NASM21209, MS21209F1-15100000000000000000000000000000000000000000000000000000000000000000000000
    10-32
    		0.380"13/64"
    		0.203"NASM21209, MS21209F1-20100000000000000000000000000000000000000000000000000000000000000000000000
    10-32
    		0.475"13/64"
    		0.203"NASM21209, MS21209F1-2510000000000000000000000000000000000000000000000000000000000000000000000
    10-32
    		0.570"13/64"
    		0.203"NASM21209, MS21209F1-3010000000000000000000000000000000000000000000000000000000000000000000000
    12-24
    		0.216"1 Ga.
    		0.228"NASM21209, MS21209C2-101000000000000000000000000000000000000000000000000000000000000000000000000
    12-24
    		0.324"1 Ga.
    		0.228"NASM21209, MS21209C2-151000000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-20
    		0.250"H
    		0.266"NASM21209, MS21209C4-10100000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-20
    		0.375"H
    		0.266"NASM21209, MS21209C4-15100000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-20
    		0.500"H
    		0.266"NASM21209, MS21209C4-20100000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-20
    		0.625"H
    		0.266"NASM21209, MS21209C4-2510000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-20
    		0.750"H
    		0.266"NASM21209, MS21209C4-3010000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-28
    		0.250"6.7 mm
    		6.7 mmNASM21209, MS21209F4-10100000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-28
    		0.375"6.7 mm
    		6.7 mmNASM21209, MS21209F4-15100000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-28
    		0.500"6.7 mm
    		6.7 mmNASM21209, MS21209F4-2050000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-28
    		0.625"6.7 mm
    		6.7 mmNASM21209, MS21209F4-2510000000000000000000000000000000000000000000000000000000000000000000000
    5/16"-18
    		0.312"Q
    		0.332"NASM21209, MS21209C5-101000000000000000000000000000000000000000000000000000000000000000000000000
    5/16"-18
    		0.469"Q
    		0.332"NASM21209, MS21209C5-1510000000000000000000000000000000000000000000000000000000000000000000000000
    5/16"-18
    		0.625"Q
    		0.332"NASM21209, MS21209C5-20100000000000000000000000000000000000000000000000000000000000000000000000
    5/16"-24
    		0.312"21/64"
    		0.328"NASM21209, MS21209F5-101000000000000000000000000000000000000000000000000000000000000000000000000
    5/16"-24
    		0.469"21/64"
    		0.328"NASM21209, MS21209F5-151000000000000000000000000000000000000000000000000000000000000000000000000
    5/16"-24
    		0.625"21/64"
    		0.328"NASM21209, MS21209F5-20100000000000000000000000000000000000000000000000000000000000000000000000
    5/16"-24
    		0.781"21/64"
    		0.328"NASM21209, MS21209F5-25100000000000000000000000000000000000000000000000000000000000000000000000
    3/8"-16
    		0.375"X
    		0.397"NASM21209, MS21209C6-1010000000000000000000000000000000000000000000000000000000000000000000000000
    3/8"-16
    		0.562"X
    		0.397"NASM21209, MS21209C6-15500000000000000000000000000000000000000000000000000000000000000000000000
    3/8"-16
    		0.750"X
    		0.397"NASM21209, MS21209C6-20100000000000000000000000000000000000000000000000000000000000000000000000
    3/8"-24
    		0.375"25/64"
    		0.391"NASM21209 MS21209F6-10500000000000000000000000000000000000000000000000000000000000000000000000
    3/8"-24
    		0.562"25/64"
    		0.391"NASM21209, MS21209F6-15500000000000000000000000000000000000000000000000000000000000000000000000
    3/8"-24
    		0.750"25/64"
    		0.391"NASM21209, MS21209F6-20100000000000000000000000000000000000000000000000000000000000000000000000
    3/8"-24
    		0.938"25/64"
    		0.391"NASM21209, MS21209F6-25100000000000000000000000000000000000000000000000000000000000000000000000
    7/16"-14
    		0.438"29/64"
    		0.453"NASM21209, MS21209C7-10500000000000000000000000000000000000000000000000000000000000000000000000
    7/16"-14
    		0.656"29/64"
    		0.453"NASM21209, MS21209C7-15500000000000000000000000000000000000000000000000000000000000000000000000
    7/16"-14
    		0.875"29/64"
    		0.453"NASM21209, MS21209C7-20100000000000000000000000000000000000000000000000000000000000000000000000
    7/16"-20
    		0.438"29/64"
    		0.453"NASM21209, MS21209F7-10500000000000000000000000000000000000000000000000000000000000000000000000
    7/16"-20
    		0.656"29/64"
    		0.453"NASM21209, MS21209F7-15500000000000000000000000000000000000000000000000000000000000000000000000
    7/16"-20
    		0.875"29/64"
    		0.453"NASM21209, MS21209F7-20100000000000000000000000000000000000000000000000000000000000000000000000
    1/2"-13
    		0.500"17/32"
    		0.531"NASM21209, MS21209C8-10500000000000000000000000000000000000000000000000000000000000000000000000
    1/2"-13
    		0.750"17/32"
    		0.531"NASM21209, MS21209C8-15500000000000000000000000000000000000000000000000000000000000000000000000
    1/2"-13
    		1"17/32"
    		0.531"NASM21209, MS21209C8-20100000000000000000000000000000000000000000000000000000000000000000000000
    1/2"-13
    		1.250"17/32"
    		0.531"NASM21209, MS21209C8-25100000000000000000000000000000000000000000000000000000000000000000000000
    1/2"-20
    		0.500"33/64"
    		0.516"NASM21209, MS21209F8-10500000000000000000000000000000000000000000000000000000000000000000000000
    1/2"-20
    		0.750"33/64"
    		0.516"NASM21209, MS21209F8-15500000000000000000000000000000000000000000000000000000000000000000000000
    1/2"-20
    		1"33/64"
    		0.516"NASM21209, MS21209F8-20100000000000000000000000000000000000000000000000000000000000000000000000
    1/2"-20
    		1.250"33/64"
    		0.516"NASM21209, MS21209F8-25100000000000000000000000000000000000000000000000000000000000000000000000
    9/16"-12
    		0.562"19/32"
    		0.594"NASM21209, MS21209C9-10100000000000000000000000000000000000000000000000000000000———0
    9/16"-12
    		0.844"19/32"
    		0.594"NASM21209, MS21209C9-15100000000000000000000000000000000000000000000000000000000———0
    9/16"-18
    		0.562"37/64"
    		0.578"NASM21209, MS21209F9-101000000000000000000000000000000000000000000000000000000000———0
    9/16"-18
    		0.844"37/64"
    		0.578"NASM21209, MS21209F9-151000000000000000000000000000000000000000000000000000000000———0
    5/8"-11
    		0.625"21/32"
    		0.656"NASM21209, MS21209C1010100000000000000000000000000000000000000000000000000000000———0
    5/8"-11
    		0.938"21/32"
    		0.656"NASM21209, MS21209C1015100000000000000000000000000000000000000000000000000000000———0
    5/8"-11
    		1.250"21/32"
    		0.656"NASM21209, MS21209C1020100000000000000000000000000000000000000000000000000000000———0
    5/8"-18
    		0.625"41/64"
    		0.641"NASM21209, MS21209F10101000000000000000000000000000000000000000000000000000000000———0
    5/8"-18
    		0.938"41/64"
    		0.641"NASM21209, MS21209F10151000000000000000000000000000000000000000000000000000000000———0
    3/4"-10
    		0.750"25/32"
    		0.781"NASM21209, MS21209C12101000000000000000000000000000000000000000000000000000000000———0
    3/4"-10
    		1.125"25/32"
    		0.781"NASM21209, MS21209C12151000000000000000000000000000000000000000000000000000000000———0
    3/4"-10
    		1.500"25/32"
    		0.781"NASM21209, MS21209C12201000000000000000000000000000000000000000000000000000000000———0
    3/4"-16
    		0.750"49/64"
    		0.766"NASM21209, MS21209F121010000000000000000000000000000000000000000000000000000000000———0
    3/4"-16
    		1.125"49/64"
    		0.766"NASM21209, MS21209F121510000000000000000000000000000000000000000000000000000000000———0
    7/8"-9
    		0.875"29/32"
    		0.906"NASM21209, MS21209C14101000000000000000000000000000000000000000000000000000000000———0
    7/8"-14
    		0.875"57/64"
    		0.891"NASM21209, MS21209F1410100000000000000000000000000000000000000000000000000000000000———0
    7/8"-14
    		1.312"57/64"
    		0.891"NASM21209, MS21209F141510000000000000000000000000000000000000000000000000000000000———0
    1"-8
    		1"1 1/32"
    		1.031"NASM21209, MS21209C16101000000000000000000000000000000000000000000000000000000000———0
    1"-8
    		1.500"1 1/32"
    		1.031"NASM21209, MS21209C161510000000000000000000000000000000000000000000000000000000000———0
    1"-12
    		1"1 1/32"
    		1.031"NASM21209, MS21209F1610100000000000000000000000000000000000000000000000000000000000———0
    1"-14
    		1"1 1/32"
    		1.031"—10000000000000000000000000000000000000000000000000000000000———0
    1"-14
    		1.500"1 1/32"
    		1.031"—10000000000000000000000000000000000000000000000000000000000———0
    1 1/4"-7
    		1.875"1 19/64"
    		1.297"NASM21209, MS21209C2015100000000000000000000000000000000000000000000000000000000000———0
    M2.2 x 0.45 mm3.3 mm2.35 mm
    		2.35 mmSAE MA3329-150100000000000000000000000000000000000000000000000000000000000000000000000
    M2.5 x 0.45 mm2.5 mm37 Ga.
    		0.104"DIN 8140, SAE MA3329-1011000000000000000000000000000000000000000000000000000000000000000000000000
    M2.5 x 0.45 mm3.8 mm37 Ga.
    		0.104"DIN 8140, SAE MA3329-1511000000000000000000000000000000000000000000000000000000000000000000000000
    M2.5 x 0.45 mm5 mm37 Ga.
    		0.104"SAE MA3329-2011000000000000000000000000000000000000000000000000000000000000000000000000
    M3 x 0.5 mm3 mm3.2 mm
    		3.2 mmDIN 8140, SAE MA3329-10210000000000000000000000000000000000000000000000000000000000000000000000000
    M3 x 0.5 mm4.5 mm3.2 mm
    		3.2 mmDIN 8140, SAE MA3329-15210000000000000000000000000000000000000000000000000000000000000000000000000
    M3 x 0.5 mm6 mm3.2 mm
    		3.2 mmDIN 8140, SAE MA3329-20210000000000000000000000000000000000000000000000000000000000000000000000000
    M3 x 0.5 mm7.5 mm3.2 mm
    		3.2 mmDIN 8140, SAE MA3329-252100000000000000000000000000000000000000000000000000000000000000000000000
    M3.5 x 0.6 mm5.3 mm3.7 mm
    		3.7 mmDIN 8140, SAE MA3329-1531000000000000000000000000000000000000000000000000000000000000000000000000
    M4 x 0.7 mm4 mm19 Ga.
    		0.166"DIN 8140, SAE MA3329-1041000000000000000000000000000000000000000000000000000000000000000000000000
    M4 x 0.7 mm6 mm19 Ga.
    		0.166"DIN 8140, SAE MA3329-15410000000000000000000000000000000000000000000000000000000000000000000000000
    M4 x 0.7 mm8 mm19 Ga.
    		0.166"DIN 8140, SAE MA3329-20410000000000000000000000000000000000000000000000000000000000000000000000000
    M4 x 0.7 mm10 mm19 Ga.
    		0.166"SAE MA3329-254100000000000000000000000000000000000000000000000000000000000000000000000
    M5 x 0.8 mm5 mm5.3 mm
    		5.3 mmDIN 8140, SAE MA3329-105100000000000000000000000000000000000000000000000000000000000000000000000
    M5 x 0.8 mm7.5 mm5.3 mm
    		5.3 mmDIN 8140, SAE MA3329-155100000000000000000000000000000000000000000000000000000000000000000000000
    M5 x 0.8 mm10 mm5.3 mm
    		5.3 mmDIN 8140, SAE MA3329-2051000000000000000000000000000000000000000000000000000000000000000000000000
    M5 x 0.8 mm12.5 mm5.3 mm
    		5.3 mmDIN 8140, SAE MA3329-25510000000000000000000000000000000000000000000000000000000000000000000000
    M6 x 1 mm6 mm6.3 mm
    		6.3 mmDIN 8140, SAE MA3329-1061000000000000000000000000000000000000000000000000000000000000000000000000
    M6 x 1 mm9 mm6.3 mm
    		6.3 mmDIN 8140, SAE MA3329-1561000000000000000000000000000000000000000000000000000000000000000000000000
    M6 x 1 mm12 mm6.3 mm
    		6.3 mmDIN 8140, SAE MA3329-2061000000000000000000000000000000000000000000000000000000000000000000000000
    M6 x 1 mm15 mm6.3 mm
    		6.3 mmSAE MA3329-25610000000000000000000000000000000000000000000000000000000000000000000000
    M7 x 1 mm7 mm7.3 mm
    		7.3 mmSAE MA3329-1071000000000000000000000000000000000000000000000000000000000000000000000000
    M7 x 1 mm10.5 mm7.3 mm
    		7.3 mmSAE MA3329-1571000000000000000000000000000000000000000000000000000000000000000000000000
    M7 x 1 mm14 mm7.3 mm
    		7.3 mmDIN 8140, SAE MA3329-207500000000000000000000000000000000000000000000000000000000000000000000000
    M8 x 1 mm8 mm8.3 mm
    		8.3 mmDIN 8140, SAE MA3329-108500000000000000000000000000000000000000000000000000000000000000000000000
    M8 x 1 mm12 mm8.3 mm
    		8.3 mmDIN 8140, SAE MA3329-158500000000000000000000000000000000000000000000000000000000000000000000000
    M8 x 1 mm16 mm8.3 mm
    		8.3 mmSAE MA3329-208500000000000000000000000000000000000000000000000000000000000000000000000
    M8 x 1.25 mm8 mm8.4 mm
    		8.4 mmDIN 8140, SAE MA3329-1091000000000000000000000000000000000000000000000000000000000000000000000000
    M8 x 1.25 mm12 mm8.4 mm
    		8.4 mmDIN 8140, SAE MA3329-15910000000000000000000000000000000000000000000000000000000000000000000000000
    M8 x 1.25 mm16 mm8.4 mm
    		8.4 mmDIN 8140, SAE MA3329-209500000000000000000000000000000000000000000000000000000000000000000000000
    M8 x 1.25 mm20 mm8.4 mm
    		8.4 mmSAE MA3329-259100000000000000000000000000000000000000000000000000000000000000000000000
    M10 x 1 mm10 mm13/32"
    		0.406"—500000000000000000000000000000000000000000000000000000000000000000000000
    M10 x 1 mm15 mm13/32"
    		0.406"DIN 8140, SAE MA3329-1915000000000000000000000000000000000000000000000000000000000000000000000000
    M10 x 1 mm20 mm13/32"
    		0.406"—500000000000000000000000000000000000000000000000000000000000000000000000
    M10 x 1.25 mm10 mm13/32"
    		0.406"SAE MA3329-1105000000000000000000000000000000000000000000000000000000000000000000000000
    M10 x 1.25 mm15 mm13/32"
    		0.406"DIN 8140, SAE MA3329-1605000000000000000000000000000000000000000000000000000000000000000000000000
    M10 x 1.25 mm20 mm13/32"
    		0.406"SAE MA3329-2105000000000000000000000000000000000000000000000000000000000000000000000000
    M10 x 1.5 mm10 mm10.5 mm
    		10.5 mmDIN 8140, SAE MA3329-1111000000000000000000000000000000000000000000000000000000000000000000000000
    M10 x 1.5 mm15 mm10.5 mm
    		10.5 mmDIN 8140, SAE MA3329-161500000000000000000000000000000000000000000000000000000000000000000000000
    M10 x 1.5 mm20 mm10.5 mm
    		10.5 mmSAE MA3329-211500000000000000000000000000000000000000000000000000000000000000000000000
    M10 x 1.5 mm25 mm10.5 mm
    		10.5 mmDIN 8140, SAE MA3329-261100000000000000000000000000000000000000000000000000000000000000000000000
    M12 x 1.25 mm12 mm31/64"
    		0.484"SAE MA3329-1125000000000000000000000000000000000000000000000000000000000000000000000000
    M12 x 1.25 mm18 mm31/64"
    		0.484"DIN 8140, SAE MA3329-1631000000000000000000000000000000000000000000000000000000000000000000000000
    M12 x 1.25 mm24 mm31/64"
    		0.484"SAE MA3329-2121000000000000000000000000000000000000000000000000000000000000000000000000
    M12 x 1.5 mm18 mm12.5 mm
    		12.5 mmDIN 8140, SAE MA3329-162100000000000000000000000000000000000000000000000000000000000000000000000
    M12 x 1.75 mm12 mm12.5 mm
    		12.5 mmDIN 8140, SAE MA3329-114500000000000000000000000000000000000000000000000000000000000000000000000
    M12 x 1.75 mm18 mm12.5 mm
    		12.5 mmDIN 8140, SAE MA3329-164500000000000000000000000000000000000000000000000000000000000000000000000
    M12 x 1.75 mm24 mm12.5 mm
    		12.5 mmDIN 8140, SAE MA3329-214100000000000000000000000000000000000000000000000000000000000000000000000
    M12 x 1.75 mm30 mm12.5 mm
    		12.5 mmDIN 8140, SAE MA3329-264100000000000000000000000000000000000000000000000000000000000000000000000
    M14 x 1.5 mm21 mm37/64"
    		0.578"DIN 8140, SAE MA3329-1651000000000000000000000000000000000000000000000000000000000———0
    M14 x 2 mm14 mm14.5 mm
    		14.5 mmSAE MA3329-11610000000000000000000000000000000000000000000000000000000000———0
    M14 x 2 mm21 mm14.5 mm
    		14.5 mmDIN 8140, SAE MA3329-16610000000000000000000000000000000000000000000000000000000000———0
    M16 x 2 mm16 mm16.5 mm
    		16.5 mmDIN 8140, SAE MA3329-11810000000000000000000000000000000000000000000000000000000000———0
    M16 x 2 mm24 mm16.5 mm
    		16.5 mmDIN 8140, SAE MA3329-1681000000000000000000000000000000000000000000000000000000000———0
    M18 x 2.5 mm18 mm47/64"
    		0.734"SAE MA3329-12110000000000000000000000000000000000000000000000000000000000———0
    M18 x 2.5 mm27 mm47/64"
    		0.734"SAE MA3329-17110000000000000000000000000000000000000000000000000000000000———0
    M20 x 2.5 mm20 mm13/16"
    		0.813"SAE MA3329-12410000000000000000000000000000000000000000000000000000000000———0
    M20 x 2.5 mm30 mm13/16"
    		0.813"SAE MA3329-17410000000000000000000000000000000000000000000000000000000000———0
    M24 x 3 mm36 mm31/32"
    		0.969"DIN 8140, SAE MA3329-1791000000000000000000000000000000000000000000000000000000000———0
    M30 x 3.5 mm45 mm1 7/32"
    		1.219"DIN 814010000000000000000000000000000000000000000000000000000000000———0
     
    Prongless
    Image of Product. Prongless. Bottom orientation. Threaded Inserts. Screw-Locking Helical Threaded Inserts, Prongless.

    Prongless

     
    18-8 Stainless Steel
    2-56
    		0.086"41 Ga.
    		0.096"NAS1130-02L-10500000000000000000000000000000000000000000000000000000000———0
    2-56
    		0.129"41 Ga.
    		0.096"NAS1130-02L-15500000000000000000000000000000000000000000000000000000000———0
    2-56
    		0.172"41 Ga.
    		0.096"NAS1130-02L-20500000000000000000000000000000000000000000000000000000000———0
    4-40
    		0.112"31 Ga.
    		0.120"NAS1130-04L-10500000000000000000000000000000000000000000000000000000000———0
    4-40
    		0.168"31 Ga.
    		0.120"NAS1130-04L-15500000000000000000000000000000000000000000000000000000000———0
    4-40
    		0.224"31 Ga.
    		0.120"NAS1130-04L-20500000000000000000000000000000000000000000000000000000000———0
    6-32
    		0.138"25 Ga.
    		0.150"NAS1130-06L-10500000000000000000000000000000000000000000000000000000000———0
    6-32
    		0.207"25 Ga.
    		0.150"NAS1130-06L-15500000000000000000000000000000000000000000000000000000000———0
    6-32
    		0.276"25 Ga.
    		0.150"NAS1130-06L-20500000000000000000000000000000000000000000000000000000000———0
    8-32
    		0.164"16 Ga.
    		0.177"NAS1130-08L-10500000000000000000000000000000000000000000000000000000000———0
    8-32
    		0.246"16 Ga.
    		0.177"NAS1130-08L-15500000000000000000000000000000000000000000000000000000000———0
    8-32
    		0.328"16 Ga.
    		0.177"NAS1130-08L-20500000000000000000000000000000000000000000000000000000000———0
    10-24
    		0.190"5 Ga.
    		0.206"NAS1130-3CL-10500000000000000000000000000000000000000000000000000000000———0
    10-24
    		0.380"5 Ga.
    		0.206"NAS1130-3CL-20500000000000000000000000000000000000000000000000000000000———0
    10-32
    		0.190"13/64"
    		0.203"NAS1130-3L-10500000000000000000000000000000000000000000000000000000000———0
    10-32
    		0.285"13/64"
    		0.203"NAS1130-3L-15500000000000000000000000000000000000000000000000000000000———0
    10-32
    		0.380"13/64"
    		0.203"NAS1130-3L-20500000000000000000000000000000000000000000000000000000000———0
    1/4"-20
    		0.250"H
    		0.266"NAS1130-4L-10500000000000000000000000000000000000000000000000000000000———0
    1/4"-20
    		0.375"H
    		0.266"NAS1130-4L-15500000000000000000000000000000000000000000000000000000000———0
    M2.5 x 0.45 mm2.5 mm37 Ga.
    		0.104"NA0276M2A-L101000000000000000000000000000000000000000000000000000000000———0
    M3 x 0.5 mm3 mm3.2 mm
    		3.2 mmNA0276M3-L101000000000000000000000000000000000000000000000000000000000———0
    M3 x 0.5 mm4.5 mm3.2 mm
    		3.2 mmNA0276M3-L151000000000000000000000000000000000000000000000000000000000———0
    M3 x 0.5 mm6 mm3.2 mm
    		3.2 mmDIN 8140, NA0276M3-L201000000000000000000000000000000000000000000000000000000000———0
    M4 x 0.7 mm4 mm19 Ga.
    		0.166"NA0276M4-L101000000000000000000000000000000000000000000000000000000000———0
    M4 x 0.7 mm6 mm19 Ga.
    		0.166"NA0276M4-L151000000000000000000000000000000000000000000000000000000000———0
    M4 x 0.7 mm8 mm19 Ga.
    		0.166"NA0276M4-L201000000000000000000000000000000000000000000000000000000000———0
    M5 x 0.8 mm5 mm5.3 mm
    		5.3 mmNA0276M5-L101000000000000000000000000000000000000000000000000000000000———0
    M5 x 0.8 mm10 mm5.3 mm
    		5.3 mmNA0276M5-L201000000000000000000000000000000000000000000000000000000000———0
    M6 x 1 mm6 mm6.3 mm
    		6.3 mmNA0276M6-L101000000000000000000000000000000000000000000000000000000000———0
    M6 x 1 mm9 mm6.3 mm
    		6.3 mmNA0276M6-L151000000000000000000000000000000000000000000000000000000000———0
    M6 x 1 mm12 mm6.3 mm
    		6.3 mmNA0276M6-L2010000000000000000000000000000000000000000000000000000000000———0
     

    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.
    Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.
    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 Cadmium-Plated Steel—The plating creates a barrier against rust.
    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
    Specs. Met
    Each
    Each
    Standard Wall
     
    Dry-Film-Lubricated Cadmium-Plated Steel
    10-24
    		3/8"-16
    		0.313"Q
    		0.332"2MS51831A101L000000000000000000000000000000
    10-32
    		3/8"-16
    		0.313"Q
    		0.332"2NAS1395-3L, MS51831A201L00000000000000———0
    1/4"-20
    		7/16"-14
    		0.375"X
    		0.397"2MS51831A102L0000000000000000000000000000
    5/16"-18
    		1/2"-13
    		0.438"29/64"
    		0.453"4MS51831A103L0000000000000000000000000000
    5/16"-24
    		1/2"-13
    		0.438"29/64"
    		0.453"4MS51831A203L00000000000000———0
    3/8"-16
    		9/16"-12
    		0.500"33/64"
    		0.516"4MS51831A104L0000000000000000000000000000
    3/8"-24
    		9/16"-12
    		0.500"33/64"
    		0.516"4MS51831A204L00000000000000———0
    7/16"-14
    		5/8"-11
    		0.625"37/64"
    		0.578"4MS51831A105L0000000000000000000000000000
    7/16"-20
    		5/8"-11
    		0.625"37/64"
    		0.578"4MS51831A205L00000000000000———0
    1/2"-13
    		11/16"-11
    		0.688"41/64"
    		0.641"4MS51831A106L0000000000000000000000000000
    1/2"-20
    		11/16"-11
    		0.688"41/64"
    		0.641"4MS51831A206L00000000000000———0
    3/4"-10
    		1 1/8"-12
    		1.250"1 1/16"
    		1.063"4MS51831A109L00000000000000000000000000000
    M16 x 1.5 mmM22 x 1.5 mm22 mm20.5 mm
    		20.5 mm4NA0150E1600000000000000000000000000000
    M16 x 2 mmM22 x 1.5 mm22 mm20.5 mm
    		20.5 mm4—0000000000000000000000000000
    M24 x 3 mmM33 x 2 mm33 mm31 mm
    		31 mm4—00000000000000000000000000000
     
    Dry-Film-Lubricated 18-8 Stainless Steel
    8-32
    		5/16"-18
    		0.313"I
    		0.272"2NAS1395C08L000000000000000000000000000
    10-24
    		3/8"-16
    		0.313"Q
    		0.332"2MS51831-101L000000000000000000000000000
    10-32
    		3/8"-16
    		0.313"Q
    		0.332"2NAS1395C3L0000000000000———0
    1/4"-20
    		7/16"-14
    		0.375"X
    		0.397"2MS51831-102L000000000000000000000000000
    1/4"-28
    		7/16"-14
    		0.375"X
    		0.397"2NAS1395C4L0000000000000———0
    5/16"-18
    		1/2"-13
    		0.438"29/64"
    		0.453"4MS51831-103L000000000000000000000000000
    5/16"-24
    		1/2"-13
    		0.438"29/64"
    		0.453"4NAS1395C5L0000000000000———0
    3/8"-16
    		9/16"-12
    		0.500"33/64"
    		0.516"4MS51831-104L000000000000000000000000000
    3/8"-24
    		9/16"-12
    		0.500"33/64"
    		0.516"4NAS1395C6L0000000000000———0
    7/16"-14
    		5/8"-11
    		0.625"37/64"
    		0.578"4MS51831-105L0000000000000000000000000000
    1/2"-13
    		11/16"-11
    		0.688"41/64"
    		0.641"4MS51831-106L0000000000000000000000000000
    1/2"-20
    		11/16"-11
    		0.688"41/64"
    		0.641"4NAS1395C8L00000000000000———0
    5/8"-11
    		7/8"-14
    		0.875"53/64"
    		0.828"4MS51831-108L0000000000000000000000000000
    3/4"-10
    		1 1/8"-12
    		1.250"1 1/16"
    		1.063"4MS51831-109L00000000000000000000000000000
    7/8"-9
    		1 1/4"-12
    		1.375"1 3/16"
    		1.188"4MS51831-110L00000000000000000000000000000
    7/8"-14
    		1 1/4"-12
    		1.375"1 3/16"
    		1.188"4MS51831-210L00000000000000———0
    1"-8
    		1 3/8"-12
    		1.500"1 5/16"
    		1.313"4MS51831-111L00000000000000000000000000000
    M4 x 0.7 mmM8 x 1.25 mm8 mm6.9 mm
    		6.9 mm2—0000000000000000000000000000
    M5 x 0.8 mmM10 x 1.25 mm10 mm8.8 mm
    		8.8 mm2—0000000000000000000000000000
    M6 x 1 mmM12 x 1.25 mm12 mm10.8 mm
    		10.8 mm2—0000000000000000000000000000
    M8 x 1 mmM14 x 1.5 mm14 mm12.8 mm
    		12.8 mm4—0000000000000000000000000000
    M8 x 1.25 mmM14 x 1.5 mm14 mm12.8 mm
    		12.8 mm4—0000000000000000000000000000
    M10 x 1.25 mmM16 x 1.5 mm16 mm14.75 mm
    		14.75 mm4—0000000000000000000000000000
    M10 x 1.5 mmM16 x 1.5 mm16 mm14.75 mm
    		14.75 mm4—0000000000000000000000000000
    M12 x 1.75 mmM18 x 1.5 mm18 mm16.75 mm
    		16.75 mm4—0000000000000000000000000000
    M16 x 2 mmM22 x 1.5 mm22 mm20.5 mm
    		20.5 mm4—0000000000000000000000000000
     
    Thin Wall
     
    Dry-Film-Lubricated Cadmium-Plated Steel
    2-56
    		8-32
    		0.125"29 Ga.
    		0.134"2MS51830A101L000000000000000000000000000
    4-40
    		10-32
    		0.172"20 Ga.
    		0.161"2MS51830A102L000000000000000000000000000
    6-32
    		12-28
    		0.172"3/16"
    		0.187"2MS51830A103L000000000000000000000000000
    8-32
    		1/4"-28
    		0.219"1 Ga.
    		0.228"2MS51830A104L000000000000000000000000000
    10-32
    		5/16"-18
    		0.313"I
    		0.272"2NAS1394-3L, MS51830A201L0000000000000———0
    1/4"-20
    		3/8"-16
    		0.375"Q
    		0.332"2MS51830A106L000000000000000000000000000
    1/4"-28
    		3/8"-16
    		0.375"Q
    		0.332"2NAS1394-4L, MS51830A202L0000000000000———0
    1/4"-28
    		7/16"-14
    		0.375"X
    		0.397"2NAS1395-4L, MS51831A202L00000000000000———0
    3/8"-16
    		1/2"-13
    		0.500"29/64"
    		0.453"4MS51830A108L000000000000000000000000000
    3/8"-24
    		1/2"-13
    		0.500"29/64"
    		0.453"4NAS1394-6L, MS51830A204L0000000000000———0
    1/2"-13
    		5/8"-11
    		0.625"37/64"
    		0.578"4MS51830A110L0000000000000000000000000000
    1/2"-20
    		5/8"-11
    		0.625"37/64"
    		0.578"4NAS1394-8L, MS51830A206L00000000000000———0
    M2 x 0.4 mmM4 x 0.7 mm3 mm3.4 mm
    		3.4 mm2—0000000000000000000000000000
    M3 x 0.5 mmM5 x 0.8 mm4.25 mm4.4 mm
    		4.4 mm2NA0146E0300000000000000000000000000000
    M4 x 0.7 mmM6 x 0.75 mm5.25 mm5.5 mm
    		5.5 mm2NA0146E0400000000000000000000000000000
    M5 x 0.5 mmM8 x 1.25 mm8 mm6.9 mm
    		6.9 mm2—0000000000000000000000000000
    M5 x 0.8 mmM8 x 1.25 mm8 mm6.9 mm
    		6.9 mm2NA0146E0500000000000000000000000000000
    M6 x 1 mmM10 x 1.25 mm10 mm8.8 mm
    		8.8 mm2NA0146E0600000000000000000000000000000
    M8 x 1.25 mmM12 x 1.25 mm12 mm10.8 mm
    		10.8 mm4—0000000000000000000000000000
    M10 x 1.5 mmM14 x 1.5 mm14 mm12.8 mm
    		12.8 mm4—0000000000000000000000000000
     
    Dry-Film-Lubricated 18-8 Stainless Steel
    2-56
    		6-40
    		0.109"31 Ga.
    		0.118"2—0000000000000000000000000000
    2-56
    		8-32
    		0.125"29 Ga.
    		0.134"2MS51830-101L000000000000000000000000000
    4-40
    		10-32
    		0.172"20 Ga.
    		0.161"2MS51830-102L000000000000000000000000000
    6-32
    		12-28
    		0.172"3/16"
    		0.187"2MS51830-103L000000000000000000000000000
    8-32
    		1/4"-28
    		0.219"1 Ga.
    		0.228"2MS51830-104L000000000000000000000000000
    10-24
    		5/16"-18
    		0.313"I
    		0.272"2MS51830-105L000000000000000000000000000
    10-32
    		5/16"-18
    		0.313"I
    		0.272"2NAS1394C3L, MS51830-201L0000000000000———0
    1/4"-20
    		3/8"-16
    		0.375"Q
    		0.332"2MS51830-106L000000000000000000000000000
    1/4"-28
    		3/8"-16
    		0.375"Q
    		0.332"2NAS1394C4L, MS51830-202L0000000000000———0
    5/16"-18
    		7/16"-14
    		0.438"X
    		0.397"4MS51830-107L000000000000000000000000000
    5/16"-24
    		7/16"-14
    		0.438"X
    		0.397"4NAS1394C5L, MS51830-203L0000000000000———0
    3/8"-16
    		1/2"-13
    		0.500"29/64"
    		0.453"4MS51830-108L000000000000000000000000000
    3/8"-24
    		1/2"-13
    		0.500"29/64"
    		0.453"4NAS1394C6L, MS51830-204L0000000000000———0
    7/16"-14
    		9/16"-12
    		0.563"33/64"
    		0.516"4MS51830-109L0000000000000000000000000000
    7/16"-20
    		9/16"-12
    		0.563"33/64"
    		0.516"4NAS1394C7L, MS51830-205L00000000000000———0
    1/2"-13
    		5/8"-11
    		0.625"37/64"
    		0.578"4MS51830-110L0000000000000000000000000000
    1/2"-20
    		5/8"-11
    		0.625"37/64"
    		0.578"4NAS1394C8L, MS51830-206L00000000000000———0
    M2 x 0.4 mmM4 x 0.7 mm3 mm3.4 mm
    		3.4 mm2—0000000000000000000000000000
    M2.5 x 0.45 mmM4.5 x 0.75 mm3.81 mm3.9 mm
    		3.9 mm2—0000000000000000000000000000
    M3 x 0.5 mmM5 x 0.8 mm4.25 mm4.4 mm
    		4.4 mm2—0000000000000000000000000000
    M4 x 0.7 mmM6 x 0.75 mm5.25 mm5.5 mm
    		5.5 mm2—0000000000000000000000000000
    M5 x 0.5 mmM8 x 1.25 mm8 mm6.9 mm
    		6.9 mm2—0000000000000000000000000000
    M5 x 0.8 mmM8 x 1.25 mm8 mm6.9 mm
    		6.9 mm2—0000000000000000000000000000
    M6 x 0.75 mmM10 x 1.25 mm10 mm8.8 mm
    		8.8 mm2—0000000000000000000000000000
    M6 x 1 mmM10 x 1.25 mm10 mm8.8 mm
    		8.8 mm2—0000000000000000000000000000
    M8 x 1.25 mmM12 x 1.25 mm12 mm10.8 mm
    		10.8 mm4—0000000000000000000000000000
    M10 x 1.5 mmM14 x 1.5 mm14 mm12.8 mm
    		12.8 mm4—0000000000000000000000000000
    M12 x 1.75 mmM16 x 1.5 mm16 mm14.75 mm
    		14.75 mm4—0000000000000000000000000000
     

    Screw-Locking Seize-Resistant Helical Threaded Inserts

    Image of Product. Bottom orientation. Threaded Inserts. Screw-Locking Seize-Resistant Helical Threaded Inserts.
    Screws won't get stuck or come loose with these inserts. A dry film on the surface lubricates fasteners during insertion to prevent sticking and binding. Once installed, the irregularly shaped threads tightly grip screws to keep them in place under vibration. Also known as Heli-Coil inserts.
    Installation requires a drill bit, a helical insert tap, and an installation tool. Easy-start installation tools compress the diameter of your insert so it fits easily into a tapped hole. These tools are the best choice for preventing misaligned or damaged threads—just make sure you have space to turn the crank.
    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.
    Dry-Film-Lubricated 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
     
    Dry-Film-Lubricated 18-8 Stainless Steel
    2-56
    		0.086"41 Ga.
    		0.096"NASM21209, MS21209C0210L5000000000000000000000000000000000000000000000000000000000000000000000000000
    2-56
    		0.129"41 Ga.
    		0.096"NASM21209, MS21209C0215L50000000000000000000000000000000000000000000000000000000000000000000000
    2-56
    		0.172"41 Ga.
    		0.096"NASM21209, MS21209C0220L50000000000000000000000000000000000000000000000000000000000000000000000
    4-40
    		0.112"31 Ga.
    		0.120"NASM21209, MS21209C0410L500000000000000000000000000000000000000000000000000000000000000000000000
    4-40
    		0.168"31 Ga.
    		0.120"NASM21209, MS21209C0415L500000000000000000000000000000000000000000000000000000000000000000000000
    4-40
    		0.224"31 Ga.
    		0.120"NASM21209, MS21209C0420L500000000000000000000000000000000000000000000000000000000000000000000000
    6-32
    		0.138"25 Ga.
    		0.150"NASM21209, MS21209C0610L50000000000000000000000000000000000000000000000000000000000000000000000
    6-32
    		0.207"25 Ga.
    		0.150"NASM21209, MS21209C0615L50000000000000000000000000000000000000000000000000000000000000000000000
    6-32
    		0.276"25 Ga.
    		0.150"NASM21209, MS21209C0620L50000000000000000000000000000000000000000000000000000000000000000000000
    10-24
    		0.285"5 Ga.
    		0.206"NASM21209, MS21209C1-15L50000000000000000000000000000000000000000000000000000000000000000000000
    10-32
    		0.190"13/64"
    		0.203"NASM21209, MS21209F1-10L50000000000000000000000000000000000000000000000000000000000000000000000
    10-32
    		0.285"13/64"
    		0.203"NASM21209, MS21209F1-15L50000000000000000000000000000000000000000000000000000000000000000000000
    10-32
    		0.380"13/64"
    		0.203"NASM21209, MS21209F1-20L50000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-20
    		0.375"H
    		0.266"NASM21209, MS21209C4-15L50000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-20
    		0.500"H
    		0.266"NASM21209, MS21209C4-20L10000000000000000000000000000000000000000000000000000000000000000000000
    5/16"-18
    		0.469"Q
    		0.332"NASM21209, MS21209C5-15L100000000000000000000000000000000000000000000000000000000000000000000000
    5/16"-18
    		0.625"Q
    		0.332"NASM21209, MS21209C5-20L100000000000000000000000000000000000000000000000000000000000000000000000
    M2.5 x 0.45 mm3.8 mm37 Ga.
    		0.104"DIN 8140, SAE MA3330-151100000000000000000000000000000000000000000000000000000000000000000000000
    M4 x 0.7 mm4 mm19 Ga.
    		0.166"DIN 8140, SAE MA3330-104100000000000000000000000000000000000000000000000000000000000000000000000
    M4 x 0.7 mm6 mm19 Ga.
    		0.166"DIN 8140, SAE MA3330-154500000000000000000000000000000000000000000000000000000000000000000000000
    M4 x 0.7 mm8 mm19 Ga.
    		0.166"DIN 8140, SAE MA3330-204500000000000000000000000000000000000000000000000000000000000000000000000
    M5 x 0.8 mm5 mm5.3 mm
    		5.3 mmSAE MA3330-10510000000000000000000000000000000000000000000000000000000000000000000000
    M5 x 0.8 mm7.5 mm5.3 mm
    		5.3 mmDIN 8140, SAE MA3330-15510000000000000000000000000000000000000000000000000000000000000000000000
    M5 x 0.8 mm10 mm5.3 mm
    		5.3 mmDIN 8140, SAE MA3330-20510000000000000000000000000000000000000000000000000000000000000000000000
    M6 x 1 mm6 mm6.3 mm
    		6.3 mmSAE MA3330-10610000000000000000000000000000000000000000000000000000000000000000000000
    M6 x 1 mm9 mm6.3 mm
    		6.3 mmDIN 8140, SAE MA3330-15650000000000000000000000000000000000000000000000000000000000000000000000
    M6 x 1 mm12 mm6.3 mm
    		6.3 mmDIN 8140, SAE MA3330-20610000000000000000000000000000000000000000000000000000000000000000000000
    M8 x 1.25 mm8 mm8.4 mm
    		8.4 mmDIN 8140, SAE MA3330-109100000000000000000000000000000000000000000000000000000000000000000000000
    M8 x 1.25 mm12 mm8.4 mm
    		8.4 mmDIN 8140, SAE MA3330-159500000000000000000000000000000000000000000000000000000000000000000000000
     

    Screw-Locking Thread-Locking Threaded Inserts

    Image of Product. Bottom orientation. Threaded Inserts. Screw-Locking Thread-Locking Threaded Inserts.
    Adhesive on both the internal and external threads keeps these inserts in place and holds screws tight. Also known as E-Z Lok, they use Loctite® adhesive that reaches full strength after 72 hours. Inserts have thick walls for strength and can be used to fill large holes with stripped threads.
    After drilling and tapping your hole, install inserts with a wrench or an installation bit. To use a wrench, thread an insert and two hex nuts onto a bolt. Then, grip and turn the top nut to drive into the hole. You can also use a slotted screwdriver.
    Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.
    Black Phosphate-Coated Steel—These inserts resist occasional moisture.
    Inserts
    Installation
    Tools
    Thread
    Size
    For Tap Thread
    Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    Drive
    Style
    Each
    Each
    Standard Wall
     
    Black Phosphate-Coated Steel
    10-24
    		3/8"-16
    		0.406"5/16"
    		0.313"Slotted
    		00000000000000000000000000000
    10-32
    		3/8"-16
    		0.406"5/16"
    		0.313"Slotted
    		000000000000000000000000000
    1/4"-20
    		7/16"-14
    		0.438"23/64"
    		0.359"Slotted
    		000000000000000000000000000
    5/16"-18
    		1/2"-13
    		0.484"27/64"
    		0.422"Slotted
    		000000000000000000000000000
    3/8"-16
    		9/16"-12
    		0.516"31/64"
    		0.484"Slotted
    		000000000000000000000000000
    1/2"-13
    		3/4"-10
    		0.656"21/32"
    		0.656"Slotted
    		000000000000000000000000000
     

    Lubricant-Free Screw-Locking Seize-Resistant Helical Threaded Inserts

    Image of Product. Bottom orientation. Threaded Inserts. Lubricant-Free Screw-Locking Seize-Resistant Helical Threaded Inserts.
    Keep screws from getting stuck or backing out with inserts that also won’t contaminate areas such as clean rooms and labs. Inserts are made of Nitronic 60 stainless steel, so you don’t need lubricant or coatings to prevent wear from repeated installation. They have irregularly shaped threads that grip the screw to resist loosening under vibration. Also known as Heli-Coil inserts.
    Installation requires a drill bit, a helical insert tap, and an installation tool. Easy-start installation tools compress the diameter of your insert so it fits easily into a tapped hole. These tools are the best choice for preventing misaligned or damaged threads—just make sure you have space to turn the crank.
    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.
    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.
    Pkg.
    Qty.
    Pkg.
    Each
    Each
    Each
    Each
    Pronged
     
    Nitronic 60 Stainless Steel
    2-56
    		0.086"41 Ga.
    		0.096"50000000000000000000000000000000000000000000000000000000000000000000000000000
    2-56
    		0.129"41 Ga.
    		0.096"500000000000000000000000000000000000000000000000000000000000000000000000
    4-40
    		0.112"31 Ga.
    		0.120"500000000000000000000000000000000000000000000000000000000000000000000000
    4-40
    		0.168"31 Ga.
    		0.120"500000000000000000000000000000000000000000000000000000000000000000000000
    4-40
    		0.224"31 Ga.
    		0.120"500000000000000000000000000000000000000000000000000000000000000000000000
    6-32
    		0.138"25 Ga.
    		0.150"50000000000000000000000000000000000000000000000000000000000000000000000
    6-32
    		0.207"25 Ga.
    		0.150"50000000000000000000000000000000000000000000000000000000000000000000000
    8-32
    		0.164"16 Ga.
    		0.177"50000000000000000000000000000000000000000000000000000000000000000000000
    8-32
    		0.246"16 Ga.
    		0.177"50000000000000000000000000000000000000000000000000000000000000000000000
    8-32
    		0.328"16 Ga.
    		0.177"500000000000000000000000000000000000000000000000000000000000000000000000
    10-24
    		0.190"5 Ga.
    		0.206"50000000000000000000000000000000000000000000000000000000000000000000000
    10-24
    		0.285"5 Ga.
    		0.206"500000000000000000000000000000000000000000000000000000000000000000000000
    10-32
    		0.190"13/64"
    		0.203"50000000000000000000000000000000000000000000000000000000000000000000000
    10-32
    		0.285"13/64"
    		0.203"50000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-20
    		0.250"H
    		0.266"50000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-20
    		0.375"H
    		0.266"500000000000000000000000000000000000000000000000000000000000000000000000
    1/4"-20
    		0.500"H
    		0.266"500000000000000000000000000000000000000000000000000000000000000000000000
    5/16"-18
    		0.312"Q
    		0.332"5000000000000000000000000000000000000000000000000000000000000000000000000
    5/16"-18
    		0.469"Q
    		0.332"5000000000000000000000000000000000000000000000000000000000000000000000000
    5/16"-18
    		0.625"Q
    		0.332"5000000000000000000000000000000000000000000000000000000000000000000000000
     

    Screw-Locking Tee-Nut Threaded Inserts for Wood

    Image of Product. Bottom orientation. Threaded Inserts. Screw-Locking Tee-Nut Threaded Inserts for Wood.
    Prevent vibration from loosening screws. These inserts have irregularly shaped threads that grip screws as you tighten them. The four prongs on the flange keep the insert from twisting in hardwood and softwood. To install, hammer into a drilled hole. The installed length includes the flange.
    Zinc-Plated Steel—A step up from plain steel, the plating withstands occasional exposure to moisture.
    Barrel
    Flange
    Thread
    Size
    Installed
    Lg.
    Dia.
    Lg.
    Dia.
    Thick.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1/4"-20
    		0.360"0.305"5/16"3/4"0.047"5/16"
    		0.313"50000000000000000
    1/4"-20
    		0.481"0.305"7/16"3/4"0.043"5/16"
    		0.313"5000000000000000
    3/8"-16
    		0.501"0.44"7/16"1"0.063"29/64"
    		0.453"2500000000000000
     
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