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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 Rated5.012.2800000000000
    6"1.1"1/8"7.9"Not Rated55.12900000000000
    6"1.162"0.072"10"Not Rated11.12.7700000000000
    6"1.192"0.092"9"Not Rated12.624.2100000000000
    7"1.125"0.112"8.9"Not Rated9550000000000000
    7.5"0.875"0.105"9.85"Not Rated42.31800000000000
    7.5"1.375"0.148"9.6"Not Rated16075000000000000
    7.875"2.1"1/4"10.625"Not Rated180.6565.6900000000000
    8"2.1"0.312"9.85"Not Rated332.72179.8500000000000
    8.5"1.746"0.148"12.5"Not Rated54.0813.52000000000000
    8.5"1.875"1/4"10.35"Not Rated222109.600000000000
    8.75"1.375"0.207"9.95"Not Rated17414500000000000
    13.75"1.625"1/4"15.4"Not Rated247.5150000000000000
    13.75"2.462"0.312"17.15"Not Rated313.8192.3000000000000
    16"1.87"0.135"21"Not Rated38.097.62000000000000
     
    Corrosion-Resistant 302 Stainless Steel
    4"0.675"0.048"6.3"Not Rated5.242.28000000000000
    4"1"0.12"5.3"Not Rated7050000000000000
    5"1.125"0.12"6.6"Not Rated12075000000000000
    6"1.1"1/8"8.35"Not Rated68.1529000000000000
    6"1.162"0.072"10.1"Not Rated11.382.77000000000000
    6"1.192"0.092"9.25"Not Rated13.674.21000000000000
    6"1.219"0.177"7.5"Not Rated150100000000000000
    7"1.5"0.187"8.4"Not Rated210150000000000000
    7.5"0.875"0.105"10.25"Not Rated49.518000000000000
    7.875"2.1"1/4"11.125"Not Rated213.365.69000000000000
    8"2.1"0.312"10.19"Not Rated365.97167.11000000000000
    8.5"1.746"0.148"12.9"Not Rated59.613.52000000000000
    8.5"1.875"1/4"10.5"Not Rated240118.68000000000000
    8.75"1.375"0.207"10.1"Not Rated195.75145000000000000
    13.75"1.625"1/4"15.5"Not Rated262.5150000000000000
    13.75"2.462"0.312"17.45"Not Rated316.1185.44000000000000
    16"1.87"0.135"21"Not Rated38.097.62000000000000
     

    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"000000000000000
    6-40
    5/8"Fine
    5/8"1/8"0.08"0.035"00000000000000
    8-32
    5/8"Coarse
    7/8"0.164"0.1"0.05"00000000000000
    10-24
    3/4"Coarse
    1 1/8"1/4"0.12"0.05"00000000000000
    10-32
    3/4"Fine
    1 1/8"1/4"0.12"1/16"00000000000000
    1/4"-20
    7/8"Coarse
    1 1/4"1/4"0.15"5/64"00000000000000
    1/4"-28
    7/8"Fine
    1 1/4"1/4"0.15"5/64"00000000000000
    3/8"-16
    1 1/8"Coarse
    1 5/8"3/8"0.22"1/8"00000000000000
    3/8"-24
    1 1/8"Fine
    1 5/8"3/8"0.22"1/8"00000000000000
    M3.5 × 0.6 mm10 mmCoarse
    16 mm3.5 mm2 mm0.9 mm00000000000000
    M4 × 0.7 mm16 mmCoarse
    22 mm4 mm2.5 mm1.3 mm00000000000000
    M5 × 0.8 mm19 mmCoarse
    28 mm5 mm3 mm1.5 mm00000000000000
    M6 × 1 mm22 mmCoarse
    32 mm6 mm4 mm2 mm00000000000000
    M8 × 1.25 mm25 mmCoarse
    38 mm8 mm5 mm2.5 mm00000000000000
    M10 × 1.5 mm28 mmCoarse
    41 mm10 mm6 mm3 mm00000000000000
     

    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"00000000000000
    6-40
    5/8"Fine
    5/8"0.138"0.08"0000000000000
    8-32
    5/8"Coarse
    7/8"0.164"0.1"0000000000000
    8-36
    5/8"Fine
    7/8"0.164"0.1"0000000000000
    10-24
    3/4"Coarse
    1 1/8"0.19"0.12"0000000000000
    10-32
    3/4"Fine
    1 1/8"0.19"0.12"00000000000000
    1/4"-20
    7/8"Coarse
    1 1/4"1/4"0.15"0000000000000
    1/4"-20
    7/8"Coarse
    1 1/4"1/4"0.268"00000000000000
    1/4"-28
    7/8"Fine
    1 1/4"1/4"0.15"0000000000000
    3/8"-16
    1 1/8"Coarse
    1 5/8"3/8"0.22"00000000000000
    3/8"-16
    1 1/8"Coarse
    1 5/8"3/8"0.268"00000000000000
    3/8"-24
    1 1/8"Fine
    1 5/8"3/8"0.22"00000000000000
    M3.5 × 0.6 mm10 mmCoarse
    16 mm3.5 mm2 mm00000000000000
    M4 × 0.7 mm16 mmCoarse
    22 mm4 mm2.5 mm00000000000000
    M5 × 0.8 mm19 mmCoarse
    28 mm5 mm3 mm00000000000000
    M6 × 1 mm22 mmCoarse
    32 mm6 mm4 mm00000000000000
    M8 × 1.25 mm25 mmCoarse
    38 mm8 mm5 mm00000000000000
    M10 × 1.5 mm28 mmCoarse
    41 mm10 mm6 mm00000000000000
     

    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"00000000000000
    8-32
    5/8"Coarse
    7/8"0.164"0.1"0.05"00000000000000
    10-24
    3/4"Coarse
    1 1/8"1/4"0.12"0.05"00000000000000
    10-32
    3/4"Fine
    1 1/8"1/4"0.12"1/16"00000000000000
    1/4"-20
    7/8"Coarse
    1 1/4"1/4"0.15"5/64"00000000000000
    1/4"-28
    7/8"Fine
    1 1/4"1/4"0.15"5/64"00000000000000
    3/8"-16
    1 1/8"Coarse
    1 5/8"3/8"0.22"1/8"00000000000000
    3/8"-24
    1 1/8"Fine
    1 5/8"3/8"0.22"1/8"00000000000000
    M3.5 × 0.6 mm10 mmCoarse
    16 mm3.5 mm2 mm0.9 mm00000000000000
    M4 × 0.7 mm16 mmCoarse
    22 mm4 mm2.5 mm1.3 mm00000000000000
    M5 × 0.8 mm19 mmCoarse
    28 mm5 mm3 mm1.5 mm00000000000000
    M6 × 1 mm22 mmCoarse
    32 mm6 mm4 mm2 mm00000000000000
    M8 × 1.25 mm25 mmCoarse
    38 mm8 mm5 mm2.5 mm00000000000000
    M10 × 1.5 mm28 mmCoarse
    41 mm10 mm6 mm3 mm00000000000000
     

    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"000000000000
    6-40
    3/8"Fine
    5/8"0.138"0.08"00000000000
    8-32
    5/8"Coarse
    7/8"0.164"0.1"00000000000
    8-36
    5/8"Fine
    7/8"0.164"0.1"00000000000
    10-24
    3/4"Coarse
    1 1/8"0.19"0.12"00000000000
    10-32
    3/4"Fine
    1 1/8"0.19"0.12"00000000000
    1/4"-20
    7/8"Coarse
    1 1/4"1/4"0.15"00000000000
    1/4"-20
    7/8"Coarse
    1 1/4"1/4"0.268"00000000000
    1/4"-28
    7/8"Fine
    1 1/4"1/4"0.15"00000000000
    3/8"-16
    1 1/8"Coarse
    1 5/8"3/8"0.22"00000000000
    3/8"-16
    1 1/8"Coarse
    1 5/8"3/8"0.268"00000000000
    3/8"-24
    1 1/8"Fine
    1 5/8"3/8"0.22"00000000000
    M3.5 × 0.6 mm10 mmCoarse
    16 mm3.5 mm2 mm00000000000
    M4 × 0.7 mm16 mmCoarse
    22 mm4 mm2.5 mm00000000000
    M5 × 0.8 mm19 mmCoarse
    28 mm5 mm3 mm00000000000
    M6 × 1 mm22 mmCoarse
    32 mm6 mm4 mm00000000000
    M8 × 1.25 mm25 mmCoarse
    38 mm8 mm5 mm00000000000
    M10 × 1.5 mm28 mmCoarse
    41 mm10 mm6 mm00000000000
     
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