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    5 Products

    Reinforcing Sleeve Washers

    These sleeve washers are a great solution when your nut or screw is harder than the material you're mounting it in. They reinforce the top of the hole to prevent soft material from collapsing as you tighten.
    Stainless SteelAbout Stainless Steel
    Image of Product. Front orientation. Contains Annotated. Washers. Reinforcing Sleeve Washers.
    High-Strength 17-4 PH Stainless Steel—Similar strength to 17-7 stainless steel washers and comparable to high-strength Grade 8 steel. These washers won’t rust in wet and outdoor environments, but they can’t handle the harsh chemicals that 316 stainless steel can.
    Sleeve
    For Screw
    Size
    ID
    OD
    OD
    Ht.
    Thk.
    Overall
    Ht.
    Each
    High-Strength 17-4 PH Stainless Steel
    M10
    0.410"0.790"0.505"0.146"0.098"0.244"000000000000000
     

    Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

    Image of Product. Front orientation. Lock Washers. Conical Washer, For Socket Head Screws, Spring Lock Washer.
    Stop socket head screws from wiggling loose on equipment with constant, vigorous vibration, such as engines, turbines, and generators. These washers have a small diameter to fit under screws with narrow heads. Similar to a spring, they flatten under pressure to add tension between mating surfaces. As long as the washers aren't deformed or otherwise damaged, you can reuse them indefinitely without losing locking strength. Also known as conical washers and Belleville washers.
    Stack multiple washers in the same direction to double or triple how much weight they can bear. Stack washers in opposite directions for better deflection, which means they compress further and withstand more shock and movement without loosening.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Steel—Best for dry environments since moisture will cause these washers to rust.
    Top-and-Bottom Serration—Adds friction for extra gripping power.
    For Screw
    Size
    ID
    OD
    Thk.
    Overall
    Ht.
    Serration
    Location
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1", M251.063"1.496"0.098"0.142"Top and Bottom1000000000000000
    1 1/8", M301.244"1.772"0.098"0.161"Top and Bottom100000000000000
     
    Zinc-Plated Steel
    1 3/8", M361.496"2.126"0.098"0.165"Top and Bottom10000000000000
     
    Steel
    1 3/8", M361.496"2.126"0.098"0.165"Top and Bottom500000000000000
     
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