Removable-Base Post Holders

Removable-Base Post Holders

OptoSigma’s removable base post holders have a through hole on the side for tightening and loosening the post with a hex wrench.  We also offer high stability ball plunger used for coarse/fine rotation and height adjustments of posts.  This offers three points of contact with the post holder as opposed to the conventional two contact points preventing posts from slipping as well and smooth adjustment with one hand when the clamp is loosened.  The adjustment screw on the bottom of the post holder can be rotated in 90-degree increments and can be mounted with different adapters.  Please fill out our custom request form for custom OEM applications.

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  1. Posts
    Posts
    SKU : RO-EE - UU
    The through-hole on the side of the post allows for tightening and loosening of the post with a hex wrench. Learn More
    Grouped product items
    Name Diameter Length A Mounting Thread Delivery Price Add to cart
    12.7mm post Inch 101.6mm height
    RO-12.7-101.6UU
    12.7mm 101.6mm 1/4-20UNC & 8-32UNC
    in stock
    $6.00
    12.7mm post Inch 304.8mm height
    RO-12.7-304.8UU
    12.7mm 304.8mm 1/4-20UNC & 8-32UNC
    in stock
    $11.00
    12.7mm post Metric 38.1mm height
    RO-12.7-38.1EE
    12.7mm 38.1mm M4 & M6
    in stock
    $6.00
    12.7mm post Metric 101.6mm height
    RO-12.7-101.6EE
    12.7mm 101.6mm M4 & M6
    in stock
    $6.00
    12.7mm post Metric 304.8mm height
    RO-12.7-304.8EE
    12.7mm 304.8mm M4 & M6
    in stock
    $11.00
    12.7mm post Inch 50.8mm height
    RO-12.7-50.8UU
    12.7mm 50.8mm 1/4-20UNC & 8-32UNC
    in stock
    $6.00
    12.7mm post Inch 152.4mm height
    RO-12.7-152.4UU
    12.7mm 152.4mm 1/4-20UNC & 8-32UNC
    in stock
    $7.00
    12.7mm post Metric 50.8mm height
    RO-12.7-50.8EE
    12.7mm 50.8mm M4 & M6
    in stock
    $6.00
    12.7mm post Metric 152.4mm height
    RO-12.7-152.4EE
    12.7mm 152.4mm M4 & M6
    in stock
    $7.00
    12.7mm post inch 25.4mm height
    RO-12.7-25.4UU
    12.7mm 25.4mm 1/4-20UNC & 8-32UNC
    2 weeks
    $6.00
    12.7mm post Inch 76.2mm height
    RO-12.7-76.2UU
    12.7mm 76.2mm 1/4-20UNC & 8-32UNC
    in stock
    $6.00
    12.7mm post Inch 203.2mm height
    RO-12.7-203.2UU
    12.7mm 203.2mm 1/4-20UNC & 8-32UNC
    in stock
    $8.50
    12.7mm post Metric 25.4mm height
    RO-12.7-25.4EE
    12.7mm 25.4mm M4 & M6
    in stock
    $6.00
    12.7mm post Metric 76.2mm height
    RO-12.7-76.2EE
    12.7mm 76.2mm M4 & M6
    in stock
    $6.00
    12.7mm post Metric 203.2mm height
    RO-12.7-203.2EE
    12.7mm 203.2mm M4 & M6
    in stock
    $8.50
    12.7mm post Inch 38.1mm height
    RO-12.7-38.1UU
    12.7mm 38.1mm 1/4-20UNC & 8-32UNC
    in stock
    $6.00
  2. High Stability Ball Plunger Post Holder (diameter 12.7mm)
    High Stability Ball Plunger Post Holder (diameter 12.7mm)
    SKU : BRS-12.7
    Post Holder with 12.7mm diameter for post Learn More
    Grouped product items
    Name Diameter Length A Delivery Price Add to cart
    High stability ball plunger post holder inch 38.1mm height
    BRS-12.7-38.1UU
    12.7mm 38.1mm
    2 weeks
    $18.00
    High stability ball plunger post holder inch 76.2mm height
    BRS-12.7-76.2UU
    12.7mm 76.2mm
    2 weeks
    $22.00
    High stability ball plunger post holder inch 152.4mm height
    BRS-12.7-152.4UU
    12.7mm 152.4mm
    2 weeks
    $30.00
    High stability ball plunger post holder inch 50.8mm height
    BRS-12.7-50.8UU
    12.7mm 50.8mm
    2 weeks
    $19.00
    High stability ball plunger post holder inch 101.6mm height
    BRS-12.7-101.6UU
    12.7mm 101.6mm
    2 weeks
    $22.00
    High stability ball plunger post holder inch 25.4mm height
    BRS-12.7-25.4UU
    12.7mm 25.4mm
    2 weeks
    $18.00
    High stability ball plunger post holder inch 63.5mm height
    BRS-12.7-63.5UU
    12.7mm 63.5mm
    2 weeks
    $19.00
    High stability ball plunger post holder inch 127mm height
    BRS-12.7-127UU
    12.7mm 127mm
    2 weeks
    $30.00
  3. Clamps for Pedestal/Post-Holders
    Clamps for Pedestal/Post-Holders
    SKU : PSC - PSCA - PSCS
    Clamps for Pedestal Bases (PST) and Post-Holders (BRS/RS) can secure Pedestals freely about a tapped hole on a vibration isolator or laboratory bench.
    The PSTM is used to add a pedestal base to standard Post Holders with M16 Threads. This allows the Post Holders to be freely positioned like a Pedestal. Learn More
    Grouped product items
    Name Material Mounting Thread Delivery Price Add to cart
    Pedestal Edge Clamp, Stainless Steel, 25mm Diameter, (Two Clamps Required), 1/4-20 Screw
    PSC-10UU
    Stainless Steel 1/4-20UNC
    in stock
    $7.65
    Pedestal Fork Clamp, Stainless Steel, 25.4mm Slot, M6 Screw
    PSCS-11.5
    Stainless Steel M6
    6-12 weeks
    $12.75
    Heavy-Duty Pedestal Fork Clamp, Stainless Steel, 25.4mm Slot, M6 Screw
    149-0075
    Stainless Steel M6
    in stock
    $13.92
    Pedestal Fork Clamp, Black-Anodized Aluminum, 22mm Slot, M6 Screw
    PSCA-11.5
    Aluminum (Black Anodized) M6
    6-12 weeks
    $9.18
    Pedestal Fork Clamp, Stainless Steel, 25.4mm Slot, 1/4-20 Screw
    PSCS-11.5UU
    Stainless Steel 1/4-20UNC
    in stock
    $12.75
    Pedestal Edge Clamp, Stainless Steel, 25mm Diameter (Two Clamps Required), M6 Screw
    PSC-10
    Stainless Steel M6
    in stock
    $6.63
    Pedestal Fork Clamp, Black-Anodized Aluminum, 22mm Slot, 1/4-20 Screw
    PSCA-11.5UU
    Aluminum (Black Anodized) 1/4-20UNC
    6-12 weeks
    $9.18
    Heavy-Duty Pedestal Fork Clamp, Stainless Steel, 25.4mm Slot, 1/4-20 Screw
    149-0070
    Stainless Steel 1/4-20UNC
    in stock
    $13.92
  4. Adapter for PSCS/PSCA Clamps
    Adapter for PSCS/PSCA Clamps
    SKU : BRS-ADAPTER-CLAMPS
    Grouped product items
    Name Delivery Price Add to cart
    Female Inch Adapter for High stability ball plungers
    BRS-12.7-1/4UU-PSA
    2 weeks
    $5.00

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