Wholesale Spacers

Finding the correct spacer for your PCB application often requires knowledge of space limitations as well as mounting panel compatibility and PCB substrate material.

  • Unthreaded and cylindrical or hex in diameter, metal spacers and nylon spacers used in PCB mounting applications where dimensional tolerances are tight.

RC Fasteners and Components is your best source for superior quality spacers at competitive prices. Our spacer inventory and competitive pricing have made us a trusted industry-leading distributor for over 19 years. Contact an RC certified spacer specialist today and find out what people are talking about. 

Fastener_Spec_click_to_view        Fastener_Spec_click_to_view

Explore Our Precision Cylindrical Spacers


    Aluminum Spacers

    Aluminum is commonly used for its lightweight / strength compromise. Characteristics of aluminum include the ability to withstand sever temperatures, insulating capabilities, as well as non-magnetic properties.
    • Spacer shape option types include round aluminum spacers and hex aluminum spacers.
    • Aluminum spacers are ideal for applications that require good corrosion-resistance and lightweight properties.

    Stainless Steel Spacers

    Stainless steel provides the same of brass, with the added resistance to chemical fumes and corrosion.  
    • Spacer shape options include round stainless steel spacers and hex stainless steel spacers.
    • Stainless steel spacers provide high-strength and corrosion resistance, making it a versatile spacer material option.

    Round Aluminum and Round Stainless Steel Spacer Sizes

    Our inventory of round aluminum and round stainless steel spacers are unthreaded and cylindrical in diameter. Ideal for PCB mounting and other low-clearance applications

    Steel Spacers

    Steel is used in applications requiring greater strength but is heavier than aluminum and does not resist corrosion like aluminum, brass, or stainless.
    • Spacer shape option types include round steel spacers and hex steel spacers.
    • Steel spacers are ideal for applications such as construction equipment and general use fastener applications.

    Brass Spacers

    Brass is used in making high-quality spacers. It’s conductive, resists corrosion, and is non-magnetic. Brass is often zinc or nickel plated and is a costlier, heavier option compared to aluminum.
    • Spacer shape options include round brass spacers and hex brass spacers.
    • Brass spacers are ideal for applications that require electrical conductivity and good corrosion resistance.

    Nylon Spacers

    Nylon provides good insulation while offering a smooth surface finish that will not erode the insulation of wires that rub against the nylon spacers.
    • Spacer shape option types include round nylon spacers and hex nylon spacers
    • Nylon spacers are well-suited for high wear and tear environments.

    Custom Spacers

    Our spacer capabilities include custom spacer options and made-to-print specialty fasteners.

    Threaded Spacers

    We also stock threaded spacers (standoffs) in a variety of materials, lengths, and sizes

    Spacer Specifications Below

    Round Spacers

    Nominal Diameter (± 1/64) Clearance Hole
               Hole Number                    Max                               Min
    3/16 #2 .100 0.90
    3/16 #4 .124 .114
    1/4 #2 .100 .090
    1/4 #4 .124 .114
    1/4 #6 .150 .140
    1/4 #8 .176 .166
    5/16 #4 .124 .114
    5/16 #6 .150 .140
    5/16 #8 .176 .166
    5/16 #10 .202 .192
    3/8 #6 .150 .140
    3/8 #8 .176 .166
    3/8 #10 .202 .192
    3/8 #12 .228 .218
    3/8 ¼” .262 .252
    1/2 #6 .150 .140
    1/2 #8 .176 .166
    1/2 #10 .202 .192
    1/2 #12 .224 .214
    1/2 ¼” .262 .252
    5/8 #6 .150 .140
    5/8 #8 .176 .166
    5/8 #10 .202 .192
    5/8 ¼” .262 .252
    5/8 #5/16 .325 .315
    5/8 #3/8 .390 .380
    Tolerance on Length up to 4” Nylon Parts: ± .015 All other materials ± .005

    Hex Spacers

    Width Across the Flats
     (± 1/64)
    Clearance Hole
               Hole Number                    Max                               Min
    3/16 #1 .077 .067
    3/16 #2 .100 .090
    3/16 #4 .124 .114
    1/4 #2 .100 .090
    1/4 #4 .124 .114
    1/4 #6 .150 .140
    1/4 #8 .176 .166
    5/16 #4 .124 .114
    5/16 #6 .150 .140
    5/16 #8 .176 .166
    5/16 #10 .202 .192
    3/8 #6 .150 .140
    3/8 #8 .176 .166
    3/8 #10 .202 .192
    1/2 #6 .150 .140
    1/2 #8 .176 .166
    1/2 #10 .202 .192
    1/2 ¼ .262 .252
    5/8 #6 .150 .140
    5/8 #8 .176 .166
    5/8 #10 .202 .192
    5/8 ¼ .262 .252
    5/8 #5/16 .325 .315
    5/8 #3/8 .390 .380
    Tolerance on Length up to 4” Nylon Parts: ± .015 All other materials ± .005
     

    Discuss Your Metal or Nylon Spacer Needs with Us

    Request a quote for metal or nylon spacers or contact us about custom spacer options. Our fastener experts can help you select the best spacer option for your electronics or PCB needs.