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    171 Products

    Cut-to-Length Extension Springs

    Image of Product. Front orientation. Extension Springs. Cut-to-Length Extension Springs.
    Image of Attribute. Front orientation. Contains Annotated. Extension Springs. Cut-to-Length Extension Springs.
    Keep these springs on hand so you can cut the right length whenever you need it. Bend their straight-cut ends into custom loops or hooks.
    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.
    Spring Rate—To determine the spring rate of a cut spring, first multiply the spring rate given by the spring's original length, then divide the result by the cut length (in inches).
    Lg.
    OD
    Wire
    Dia.
    Min. Load,
    lb.
    Spring Rate,
    lbf/in
    Each
    Straight-Cut End
     
    Spring Steel
    36"0.125"0.012"0.080.007000000000000
    36"0.125"0.014"0.150.0200000000000
    36"0.125"0.016"0.260.0300000000000
    36"0.125"0.018"0.410.0600000000000
    36"0.125"0.023"0.980.2400000000000
    36"0.188"0.016"0.110.00900000000000
    36"0.188"0.018"0.180.0200000000000
    36"0.188"0.023"0.490.0600000000000
    36"0.188"0.028"1.010.1700000000000
    36"0.25"0.018"0.090.00600000000000
    36"0.25"0.023"0.270.0200000000000
    36"0.25"0.028"0.610.0600000000000
    36"0.25"0.035"1.460.2100000000000
    36"0.313"0.023"0.160.0100000000000
    36"0.313"0.028"0.380.0300000000000
    36"0.313"0.035"0.960.100000000000
    36"0.313"0.047"2.880.500000000000
    36"0.375"0.028"0.250.0200000000000
    36"0.375"0.035"0.650.0500000000000
    36"0.375"0.047"2.140.2600000000000
    36"0.375"0.063"5.91.3100000000000
    36"0.438"0.035"0.460.0300000000000
    36"0.438"0.047"1.580.16000000000000
    36"0.5"0.047"1.190.100000000000
    36"0.5"0.054"2.110.2100000000000
    36"0.5"0.063"3.650.4700000000000
    36"0.5"0.072"6.490.9700000000000
    36"0.5"0.08"9.281.78000000000000
    36"0.563"0.063"2.90.3100000000000
    36"0.625"0.047"0.70.05000000000000
    36"0.625"0.063"2.320.2200000000000
    36"0.625"0.08"6.450.81000000000000
    36"0.625"0.092"10.581.72000000000000
    36"0.75"0.047"0.430.03000000000000
    36"0.75"0.105"13.121.89000000000000
    36"0.75"0.12"20.884000000000000
    36"0.875"0.105"9.820.39000000000000
    36"0.875"0.135"24.794.42000000000000
    36"1"0.092"4.150.36000000000000
    36"1"0.12"12.831.47000000000000
    36"1.125"0.105"5.850.47000000000000
    36"1.125"0.135"15.591.83000000000000
    36"1.25"0.12"7.810.69000000000000
    36"1.25"0.148"18.262.14000000000000
    36"1.5"0.162"18.221.86000000000000
     
    Corrosion-Resistant 302 Stainless Steel
    20"0.125"0.013"0.110.02000000000000
    20"0.125"0.015"0.20.04000000000000
    20"0.125"0.017"0.330.07000000000000
    20"0.125"0.02"0.60.17000000000000
    20"0.125"0.023"0.980.38000000000000
    20"0.188"0.015"0.080.01000000000000
    20"0.188"0.017"0.140.02000000000000
    20"0.188"0.02"0.280.04000000000000
    20"0.188"0.026"0.790.18000000000000
    20"0.188"0.028"1.010.27000000000000
    20"0.25"0.015"0.040.004000000000000
    20"0.25"0.017"0.070.007000000000000
    20"0.25"0.02"0.150.02000000000000
    20"0.25"0.023"0.270.03000000000000
    20"0.25"0.026"0.450.07000000000000
    20"0.25"0.028"0.610.1000000000000
    20"0.25"0.032"1.030.2000000000000
    20"0.25"0.035"1.460.33000000000000
    20"0.313"0.02"0.080.008000000000000
    20"0.313"0.023"0.160.02000000000000
    20"0.313"0.026"0.280.03000000000000
    20"0.313"0.028"0.380.05000000000000
    20"0.313"0.032"0.670.1000000000000
    20"0.313"0.035"0.960.15000000000000
    20"0.313"0.041"1.780.36000000000000
    20"0.313"0.047"2.880.77000000000000
    20"0.375"0.032"0.440.05000000000000
    20"0.375"0.035"0.650.08000000000000
    20"0.375"0.041"1.250.19000000000000
    20"0.375"0.047"2.140.41000000000000
    20"0.375"0.054"3.650.87000000000000
    20"0.375"0.062"5.91.87000000000000
    20"0.406"0.035"0.520.06000000000000
    20"0.438"0.035"0.460.05000000000000
    20"0.438"0.041"0.90.12000000000000
    20"0.438"0.047"1.580.24000000000000
    20"0.438"0.054"2.750.51000000000000
    20"0.5"0.047"1.190.15000000000000
    20"0.5"0.054"2.110.3000000000000
    20"0.5"0.062"3.650.68000000000000
    20"0.5"0.072"6.491.55000000000000
    20"0.563"0.054"1.650.22000000000000
    20"0.563"0.062"2.90.46000000000000
    20"0.563"0.072"5.231.03000000000000
    20"0.563"0.091"12.763.75000000000000
    20"0.625"0.062"2.320.32000000000000
    20"0.625"0.072"4.260.72000000000000
    20"0.625"0.091"10.582.57000000000000
    20"0.75"0.047"0.430.04000000000000
    20"0.75"0.072"2.930.39000000000000
    20"0.75"0.091"7.541.37000000000000
    20"0.75"0.105"13.123000000000000
    20"0.75"0.12"20.886.29000000000000
    20"1"0.08"2.380.26000000000000
    20"1"0.091"4.150.52000000000000
    20"1"0.105"7.521.12000000000000
    20"1"0.12"12.832.31000000000000
    20"1.125"0.105"5.850.76000000000000
    20"1.125"0.135"15.592.91000000000000
    20"1.5"0.135"8.921.11000000000000
    20"1.5"0.162"18.222.93000000000000
     

    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
     

    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
     

    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
     
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