McMaster-Carr logo
    Filter by
    System of Measurement
    Length
    Attribute Image
    Compression Spring Type
    DFARS Specialty Metals
    Industrial Info Compare
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Steel Grade
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Specifications Met
    Industrial Info Compare
    Thread Size
    Industrial Info Snippet
    Anchor Type
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    34 Products

    Compression Springs

    Image of Product. Front orientation. Compression Springs.
    Squeeze these springs and they’ll push right back to their original length. When compressed, they apply steady pressure to keep components securely in place. Release the pressure and they snap back instantly, just like the tip of a ballpoint pen.
    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 compress than steel, but can’t handle as high a load.
    Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant stainless steel springs won't degrade when exposed to salt water and harsh chemicals. They're easier to compress than steel, but can’t handle as high a load.
    Lg.,
    mm
    OD,
    mm
    ID,
    mm
    Wire Dia.,
    mm
    Compressed Lg. @
    Max. Load, mm
    Max. Load,
    lb.
    Spring Rate,
    lbf/mm
    End Type
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Spring Steel
    229.256.751.2514.1162Closed and GroundDIN 2095, DIN 2098, DIN 17223594125K61400000
     
    Corrosion-Resistant 302 Stainless Steel
    229.256.751.2510.5191.7Closed and GroundDIN 209552006N27400000
    2215102.5148711Closed and GroundDIN 209522006N27500000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    225.993.811.0917.79.52.2Closed and Ground18969T780000
    229.256.751.2716.19.81.7Closed and Ground18969T8570000
    2211.999.191.414.2101.3Closed and Ground18969T8970000
    2211.9910.110.9712.13.50.35Closed and Ground18969T7320000
    2215.0111.811.613.8121.5Closed and Ground18969T9420000
    2215.0112.631.199.35.20.41Closed and Ground18969T8360000
    2218.2914.272.0314.9192.6Closed and Ground18969T980000
    2218.2915.491.411.96.80.67Closed and Ground18969T9120000
     

    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.,
    mm
    Spacing
    Lg.,
    mm
    Dia.,
    mm
    Hole Dia.,
    mm
    Each
    Black-Oxide Steel
    M4 × 0.7 mm16Coarse
    2242.59634K3800000
     

    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.,
    mm
    Spacing
    Lg.,
    mm
    Dia.,
    mm
    Hole Dia.,
    mm
    Each
    18-8 Stainless Steel
    M4 × 0.7 mm16Coarse
    2242.595907A170000000
     

    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.,
    mm
    Spacing
    Lg.,
    mm
    Dia.,
    mm
    Hole Dia.,
    mm
    Hex Size,
    mm
    Each
    18-8 Stainless Steel
    M4 × 0.7 mm16Coarse
    2242.51.396376A570000000
     

    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.,
    mm
    Spacing
    Lg.,
    mm
    Dia.,
    mm
    Hole Dia.,
    mm
    Hex Size,
    mm
    Each
    Black-Oxide Steel
    M4 × 0.7 mm16Coarse
    2242.51.397745A170000000
     

    Slotted Spring Pins

    Image of Product. Front orientation. Spring Pins. Slotted Spring Pins.
    Image of Product. End View. Side1 orientation. Spring Pins. Slotted Spring Pins.

    End View

    Squeeze these pins into holes and they expand slightly, creating tension to hold parts in place. They are often used as hinge pins and as fasteners for springs and power transmission components. An alternative to dowel pins, they're lighter in weight with a hollow center and don’t need a precise hole. Also known as roll pins.
    Spring Steel—These pins won't deform from stress and vibration. Although they're stronger than stainless steel, they're best for dry environments since moisture will cause them to rust.
    Corrosion-Resistant 18-8 Stainless Steel—The choice for wet and outdoor environments, these pins resist rusting. They are strong enough to join most components but won't withstand extreme stress and vibration as well as steel.
    Lg.,
    mm
    For Hole
    Dia., mm
    Wall Thk.,
    mm
    Double Shear Breaking
    Strength, lbf
    Min.
    Hardness
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Spring Steel
     
    2 mm Diameter
    2220.2330Rockwell C42DIN 7346, ISO 133375097161A11100000
    222 to 2.10.4600Rockwell C42ISO 875210091611A1100000
     
    3 mm Diameter
    2230.3780Rockwell C42DIN 7346, ISO 133375097161A13500000
    223 to 3.10.61,400Rockwell C42ISO 875210091611A1600000
     
    4 mm Diameter
    2240.51,700Rockwell C42DIN 7346, ISO 133375097161A15100000
    224 to 4.20.82,500Rockwell C42ISO 875210091611A21000000
     
    5 mm Diameter
    2250.52,300Rockwell C42DIN 7346, ISO 133375097161A16900000
    225 to 5.213,900Rockwell C42ISO 875210091611A30900000
     
    6 mm Diameter
    2260.754,000Rockwell C42DIN 7346, ISO 133372597161A1880000
     
    8 mm Diameter
    2280.755,300Rockwell C42DIN 7346, ISO 133372597161A20900000
    228 to 8.251.59,600Rockwell C42ISO 87525091611A50800000
     
    10 mm Diameter
    221015,300Rockwell C42DIN 7346, ISO 133371097161A2300000
     
    13 mm Diameter
    22131.214,800Rockwell C42DIN 7346, ISO 13337597161A26600000
     
    16 mm Diameter
    22161.522,000Rockwell C42DIN 7346, ISO 13337197161A2810000
     
    Corrosion-Resistant 18-8 Stainless Steel
     
    2 mm Diameter
    222 to 2.10.4Not RatedNot RatedISO 87522591610A2130000
     
    3 mm Diameter
    223 to 3.10.6Not RatedNot RatedISO 87521091610A4130000
     
    4 mm Diameter
    224 to 4.20.8Not RatedNot RatedISO 87521091610A5180000
     
    5 mm Diameter
    225 to 5.21Not RatedNot RatedDIN 1481, ISO 87521091610A6210000
     
    8 mm Diameter
    228 to 8.251.5Not RatedNot RatedDIN 1481, ISO 87521091610A8050000
     
    back to top