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    8 Products

    Shims for Lengthening Screw Shoulders

    Image of ProductInUse. Front orientation. Contains Annotated. Shims. Round, Sold Individually, Shoulder Lengthening.
    Image of Product. Front orientation. Shims. Round, Sold Individually, Shoulder Lengthening.
    When shoulders come up short, use these shims to extend the shoulder length on your screw. Wiggle the shims over the threads and up to the existing shoulder to create the exact shoulder length you need. Use them to create more space for bearings, pulleys, and sprockets, or extend the length of travel along the shoulder.
    You can stack multiple shims to achieve the exact shoulder length or space you need.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.
    Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these shims won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Stress-Resistant Spring Steel—These shims are harder and hold their shape better than carbon steel. Use them for high-stress applications, such as leveling heavy machinery. They're best for dry environments since moisture will cause them to rust.
    Thk.
    Thk. Tolerance
    For Screw
    Size
    ID
    ID
    Tolerance
    OD
    OD Tolerance
    Min.
    Hardness
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    For 1/4" Diameter Shoulder
    0.005"-0.0005" to 0.0005"No. 10
    		0.171"0" to 0.011"0.241"-0.002" to 0.002"Rockwell B7050000000000000000
    0.016"-0.002" to 0.002"No. 10
    		0.171"0" to 0.011"0.241"-0.002" to 0.002"Rockwell B705000000000000000
    0.03"-0.003" to 0.003"No. 10
    		0.171"0" to 0.011"0.241"-0.002" to 0.002"Rockwell B70250000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
     
    For 1/4" Diameter Shoulder
    0.005"-0.0005" to 0.0005"No. 10
    		0.171"0" to 0.011"0.241"-0.002" to 0.002"Rockwell B701000000000000000
    0.016"-0.002" to 0.002"No. 10
    		0.171"0" to 0.011"0.241"-0.002" to 0.002"Rockwell B701000000000000000
    0.03"-0.003" to 0.003"No. 10
    		0.171"0" to 0.011"0.241"-0.002" to 0.002"Rockwell B701000000000000000
     
    Stress-Resistant Spring Steel
     
    For 1/4" Diameter Shoulder
    0.005"-0.0005" to 0.0005"No. 10
    		0.171"0" to 0.011"0.248"-0.002" to 0.002"Rockwell C402500000000000000
    0.015"-0.00075" to 0.00075"No. 10
    		0.171"0" to 0.011"0.248"-0.002" to 0.002"Rockwell C405000000000000000
     
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