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    97 Products

    Overload-Prevention Extension Springs

    Image of Product. Front orientation. Extension Springs. Overload-Prevention Extension Springs.
    Stop overstretching before it starts—drawbars limit how far these springs extend to prevent breaking. They’re best for tensioning tasks, such as pulling and keeping fences and gates closed.
    Loop End—The most secure attachment method. With fully closed loops, there's no risk of slipping off.
    Spring Steel—Strong and resilient, but best suited for dry environments since moisture will cause these springs to rust.
    Corrosion-Resistant 302 Stainless Steel—Won’t corrode from exposure to moisture and mild chemicals, including ammonia often found in cleaning solutions. These springs are easier to extend than steel, but can’t handle as high a load.
    Minimum Load—The amount of force required to start extending the spring.
    Maximum Load—The amount of force required to fully extend the spring.
    Load
    Lg.
    OD
    Wire
    Dia.
    Extended Lg.
    @ Max. Load
    Min.
    Max.,
    lb.
    Spring Rate,
    lbf/in
    Each
    Loop End
     
    Spring Steel
    4"0.675"0.048"6.2"Not Rated5.012.289630K600000
    6"1.1"1/8"7.9"Not Rated55.1299630K400000
    6"1.162"0.072"10"Not Rated11.12.779630K800000
    6"1.192"0.092"9"Not Rated12.624.219630K500000
    7"1.125"0.112"8.9"Not Rated95509630K9100000
    7.5"0.875"0.105"9.85"Not Rated42.3189630K100000
    7.5"1.375"0.148"9.6"Not Rated160759630K9300000
    7.875"2.1"1/4"10.625"Not Rated180.6565.699630K700000
    8"2.1"0.312"9.85"Not Rated332.72179.859630K900000
    8.5"1.746"0.148"12.5"Not Rated54.0813.529630K1400000
    8.5"1.875"1/4"10.35"Not Rated222109.69630K300000
    8.75"1.375"0.207"9.95"Not Rated1741459630K200000
    13.75"1.625"1/4"15.4"Not Rated247.51509630K3100000
    13.75"2.462"0.312"17.15"Not Rated313.8192.39630K3300000
    16"1.87"0.135"21"Not Rated38.097.629630K3500000
     
    Corrosion-Resistant 302 Stainless Steel
    4"0.675"0.048"6.3"Not Rated5.242.289630K5200000
    4"1"0.12"5.3"Not Rated70509630K8100000
    5"1.125"0.12"6.6"Not Rated120759630K8300000
    6"1.1"1/8"8.35"Not Rated68.15299630K6400000
    6"1.162"0.072"10.1"Not Rated11.382.779630K5600000
    6"1.192"0.092"9.25"Not Rated13.674.219630K5800000
    6"1.219"0.177"7.5"Not Rated1501009630K8500000
    7"1.5"0.187"8.4"Not Rated2101509630K8700000
    7.5"0.875"0.105"10.25"Not Rated49.5189630K6100000
    7.875"2.1"1/4"11.125"Not Rated213.365.699630K7900000
    8"2.1"0.312"10.19"Not Rated365.97167.119630K7700000
    8.5"1.746"0.148"12.9"Not Rated59.613.529630K6500000
    8.5"1.875"1/4"10.5"Not Rated240118.689630K6300000
    8.75"1.375"0.207"10.1"Not Rated195.751459630K6200000
    13.75"1.625"1/4"15.5"Not Rated262.51509630K7100000
    13.75"2.462"0.312"17.45"Not Rated316.1185.449630K7300000
    16"1.87"0.135"21"Not Rated38.097.629630K7500000
     

    Corrosion-Resistant Swiveling Extension Spring Stud Anchors

    Image of Product. Front orientation. Contains Annotated. Hanger Bolts. Corrosion-Resistant Swiveling Extension Spring Stud Anchors.
    These stainless steel stud anchors offer excellent corrosion resistance. The head swivels 360° so the spring stays straight and properly coiled. Attach an extension spring to an anchor and then thread the anchor into your part for a secure connection. To make tightening easier, anchors have a hex socket on the bottom and wrench flats at the top of the threads.
    Thread
    Size
    Min.
    Lg.
    Spacing
    Lg.
    Dia.
    Hole
    Dia.
    Hex
    Size
    Each
    18-8 Stainless Steel
    6-32
    3/8"Coarse
    5/8"0.138"0.08"0.035"96376A110000000
    6-40
    5/8"Fine
    5/8"1/8"0.08"0.035"96376A50000000
    8-32
    5/8"Coarse
    7/8"0.164"0.1"0.05"96376A22000000
    10-24
    3/4"Coarse
    1 1/8"1/4"0.12"0.05"96376A52000000
    10-32
    3/4"Fine
    1 1/8"1/4"0.12"1/16"96376A53000000
    1/4"-20
    7/8"Coarse
    1 1/4"1/4"0.15"5/64"96376A33000000
    1/4"-28
    7/8"Fine
    1 1/4"1/4"0.15"5/64"96376A54000000
    3/8"-16
    1 1/8"Coarse
    1 5/8"3/8"0.22"1/8"96376A44000000
    3/8"-24
    1 1/8"Fine
    1 5/8"3/8"0.22"1/8"96376A55000000
    M3.5 × 0.6 mm10 mmCoarse
    16 mm3.5 mm2 mm0.9 mm96376A56000000
    M4 × 0.7 mm16 mmCoarse
    22 mm4 mm2.5 mm1.3 mm96376A57000000
    M5 × 0.8 mm19 mmCoarse
    28 mm5 mm3 mm1.5 mm96376A58000000
    M6 × 1 mm22 mmCoarse
    32 mm6 mm4 mm2 mm96376A59000000
    M8 × 1.25 mm25 mmCoarse
    38 mm8 mm5 mm2.5 mm96376A60000000
    M10 × 1.5 mm28 mmCoarse
    41 mm10 mm6 mm3 mm96376A61000000
     

    Corrosion-Resistant Extension Spring Stud Anchors

    Image of Product. Front orientation. Contains Annotated. Hanger Bolts. Corrosion-Resistant Extension Spring Stud Anchors.
    These stainless steel stud anchors offer excellent corrosion resistance. Attach an extension spring to an anchor and then thread the anchor into your part for a secure connection.
    Thread
    Size
    Min.
    Lg.
    Spacing
    Lg.
    Dia.
    Hole
    Dia.
    Each
    18-8 Stainless Steel
    6-32
    3/8"Coarse
    5/8"0.138"0.08"95907A44000000
    6-40
    5/8"Fine
    5/8"0.138"0.08"95907A1000000
    8-32
    5/8"Coarse
    7/8"0.164"0.1"95907A4600000
    8-36
    5/8"Fine
    7/8"0.164"0.1"95907A1100000
    10-24
    3/4"Coarse
    1 1/8"0.19"0.12"95907A1200000
    10-32
    3/4"Fine
    1 1/8"0.19"0.12"95907A13000000
    1/4"-20
    7/8"Coarse
    1 1/4"1/4"0.15"95907A4800000
    1/4"-20
    7/8"Coarse
    1 1/4"1/4"0.268"95907A14000000
    1/4"-28
    7/8"Fine
    1 1/4"1/4"0.15"95907A4900000
    3/8"-16
    1 1/8"Coarse
    1 5/8"3/8"0.22"95907A51000000
    3/8"-16
    1 1/8"Coarse
    1 5/8"3/8"0.268"95907A15000000
    3/8"-24
    1 1/8"Fine
    1 5/8"3/8"0.22"95907A52000000
    M3.5 × 0.6 mm10 mmCoarse
    16 mm3.5 mm2 mm95907A16000000
    M4 × 0.7 mm16 mmCoarse
    22 mm4 mm2.5 mm95907A17000000
    M5 × 0.8 mm19 mmCoarse
    28 mm5 mm3 mm95907A18000000
    M6 × 1 mm22 mmCoarse
    32 mm6 mm4 mm95907A19000000
    M8 × 1.25 mm25 mmCoarse
    38 mm8 mm5 mm95907A20000000
    M10 × 1.5 mm28 mmCoarse
    41 mm10 mm6 mm95907A21000000
     

    Extension Spring Stud Anchors

    Image of Product. Front orientation. Contains Annotated. Hanger Bolts. Extension Spring Stud Anchors.
    A black-oxide finish provides these steel anchors with mild corrosion resistance. Attach an extension spring to an anchor and then thread the anchor into your part for a secure connection.
    Thread
    Size
    Min.
    Lg.
    Spacing
    Lg.
    Dia.
    Hole
    Dia.
    Each
    Black-Oxide Steel
    6-32
    3/8"Coarse
    5/8"0.138"0.08"9634K2100000
    6-40
    3/8"Fine
    5/8"0.138"0.08"9634K310000
    8-32
    5/8"Coarse
    7/8"0.164"0.1"9634K220000
    8-36
    5/8"Fine
    7/8"0.164"0.1"9634K320000
    10-24
    3/4"Coarse
    1 1/8"0.19"0.12"9634K330000
    10-32
    3/4"Fine
    1 1/8"0.19"0.12"9634K340000
    1/4"-20
    7/8"Coarse
    1 1/4"1/4"0.15"9634K230000
    1/4"-20
    7/8"Coarse
    1 1/4"1/4"0.268"9634K350000
    1/4"-28
    7/8"Fine
    1 1/4"1/4"0.15"9634K240000
    3/8"-16
    1 1/8"Coarse
    1 5/8"3/8"0.22"9634K250000
    3/8"-16
    1 1/8"Coarse
    1 5/8"3/8"0.268"9634K360000
    3/8"-24
    1 1/8"Fine
    1 5/8"3/8"0.22"9634K260000
    M3.5 × 0.6 mm10 mmCoarse
    16 mm3.5 mm2 mm9634K370000
    M4 × 0.7 mm16 mmCoarse
    22 mm4 mm2.5 mm9634K380000
    M5 × 0.8 mm19 mmCoarse
    28 mm5 mm3 mm9634K390000
    M6 × 1 mm22 mmCoarse
    32 mm6 mm4 mm9634K410000
    M8 × 1.25 mm25 mmCoarse
    38 mm8 mm5 mm9634K420000
    M10 × 1.5 mm28 mmCoarse
    41 mm10 mm6 mm9634K430000
     

    Swiveling Extension Spring Stud Anchors

    Image of Product. Front orientation. Contains Annotated. Hanger Bolts. Swiveling Extension Spring Stud Anchors.
    A black-oxide finish provides these steel anchors with mild corrosion resistance. The head swivels 360° so the spring stays straight and properly coiled. Attach an extension spring to an anchor and then thread the anchor into your part for a secure connection. To make tightening easier, anchors have a hex socket on the bottom and wrench flats at the top of the threads.
    Thread
    Size
    Min.
    Lg.
    Spacing
    Lg.
    Dia.
    Hole
    Dia.
    Hex
    Size
    Each
    Black-Oxide Steel
    6-32
    3/8"Coarse
    5/8"0.138"0.08"0.035"97745A55000000
    8-32
    5/8"Coarse
    7/8"0.164"0.1"0.05"97745A66000000
    10-24
    3/4"Coarse
    1 1/8"1/4"0.12"0.05"97745A12000000
    10-32
    3/4"Fine
    1 1/8"1/4"0.12"1/16"97745A13000000
    1/4"-20
    7/8"Coarse
    1 1/4"1/4"0.15"5/64"97745A77000000
    1/4"-28
    7/8"Fine
    1 1/4"1/4"0.15"5/64"97745A14000000
    3/8"-16
    1 1/8"Coarse
    1 5/8"3/8"0.22"1/8"97745A88000000
    3/8"-24
    1 1/8"Fine
    1 5/8"3/8"0.22"1/8"97745A15000000
    M3.5 × 0.6 mm10 mmCoarse
    16 mm3.5 mm2 mm0.9 mm97745A16000000
    M4 × 0.7 mm16 mmCoarse
    22 mm4 mm2.5 mm1.3 mm97745A17000000
    M5 × 0.8 mm19 mmCoarse
    28 mm5 mm3 mm1.5 mm97745A18000000
    M6 × 1 mm22 mmCoarse
    32 mm6 mm4 mm2 mm97745A19000000
    M8 × 1.25 mm25 mmCoarse
    38 mm8 mm5 mm2.5 mm97745A20000000
    M10 × 1.5 mm28 mmCoarse
    41 mm10 mm6 mm3 mm97745A21000000
     
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