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.

Removable-Base Post Holder (diameter 12.7mm)

Posts

Adapter for PSCS/PSCA Clamps

Clamps for Pedestal/Post-Holders

Removable-Base Post Holder (diameter 12.7mm)

SKU : BRS-12.7 0

Removable-Base Post Holder with built-in spring plunger made for 12.7mm diameter optical posts. Learn More

Grouped product items
Name	Diameter	Length A	Delivery	Price
High stability ball plunger post holder inch 50.8mm height BRS-12.7-50.8UU	12.7mm	50.8mm	3-5 days	£17.80
High stability ball plunger post holder inch 101.6mm height BRS-12.7-101.6UU	12.7mm	101.6mm	3-5 days	£20.60
High stability ball plunger post holder inch 25.4mm height BRS-12.7-25.4UU	12.7mm	25.4mm	3-5 days	£16.80
High stability ball plunger post holder inch 63.5mm height BRS-12.7-63.5UU	12.7mm	63.5mm	3-5 days	£17.80
High stability ball plunger post holder inch 127mm height BRS-12.7-127UU	12.7mm	127mm	3-5 days	£28.10
High stability ball plunger post holder inch 38.1mm height BRS-12.7-38.1UU	12.7mm	38.1mm	3-5 days	£16.80
High stability ball plunger post holder inch 76.2mm height BRS-12.7-76.2UU	12.7mm	76.2mm	3-5 days	£20.60
High stability ball plunger post holder inch 152.4mm height BRS-12.7-152.4UU	12.7mm	152.4mm	3-5 days	£28.10

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Posts

SKU : RO-EE - UU 1

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
12.7mm post Metric 50.8mm height RO-12.7-50.8EE	12.7mm	50.8mm	M4 & M6	in stock	£4.90
12.7mm post Metric 152.4mm height RO-12.7-152.4EE	12.7mm	152.4mm	M4 & M6	3-5 days	£6.50
12.7mm post inch 25.4mm height RO-12.7-25.4UU	12.7mm	25.4mm	1/4-20UNC & 8-32UNC	3-5 days	£4.90
12.7mm post Inch 76.2mm height RO-12.7-76.2UU	12.7mm	76.2mm	1/4-20UNC & 8-32UNC	3-5 days	£5.30
12.7mm post Inch 203.2mm height RO-12.7-203.2UU	12.7mm	203.2mm	1/4-20UNC & 8-32UNC	3-5 days	£7.90
12.7mm post Metric 25.4mm height RO-12.7-25.4EE	12.7mm	25.4mm	M4 & M6	in stock	£4.90
12.7mm post Metric 76.2mm height RO-12.7-76.2EE	12.7mm	76.2mm	M4 & M6	3-5 days	£5.30
12.7mm post Metric 203.2mm height RO-12.7-203.2EE	12.7mm	203.2mm	M4 & M6	in stock	£7.90
12.7mm post Inch 38.1mm height RO-12.7-38.1UU	12.7mm	38.1mm	1/4-20UNC & 8-32UNC	3-5 days	£4.90
12.7mm post Inch 101.6mm height RO-12.7-101.6UU	12.7mm	101.6mm	1/4-20UNC & 8-32UNC	3-5 days	£5.60
12.7mm post Inch 304.8mm height RO-12.7-304.8UU	12.7mm	304.8mm	1/4-20UNC & 8-32UNC	3-5 days	£10.30
12.7mm post Metric 38.1mm height RO-12.7-38.1EE	12.7mm	38.1mm	M4 & M6	in stock	£4.90
12.7mm post Metric 101.6mm height RO-12.7-101.6EE	12.7mm	101.6mm	M4 & M6	in stock	£5.60
12.7mm post Metric 304.8mm height RO-12.7-304.8EE	12.7mm	304.8mm	M4 & M6	in stock	£10.30
12.7mm post Inch 50.8mm height RO-12.7-50.8UU	12.7mm	50.8mm	1/4-20UNC & 8-32UNC	3-5 days	£4.90
12.7mm post Inch 152.4mm height RO-12.7-152.4UU	12.7mm	152.4mm	1/4-20UNC & 8-32UNC	3-5 days	£6.50

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Adapter for PSCS/PSCA Clamps

SKU : BRS-ADAPTER-CLAMPS 2

- Learn More

Grouped product items
Name	Delivery	Price	Add to cart
Female Inch Adapter for High stability ball plungers BRS-12.7-1/4UU-PSA	in stock	£4.70

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Clamps for Pedestal/Post-Holders

SKU : PSC - PSCA - PSCS 3

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 Fork Clamp, Black-Anodized Aluminum, 22mm Slot, M6 Screw PSCA-11.5	Aluminum (Black Anodized)	M6	in stock	£8.40
Pedestal Fork Clamp, Stainless Steel, 25.4mm Slot, 1/4-20 Screw PSCS-11.5UU	Stainless Steel	1/4-20UNC	3-5 days	£11.70
Pedestal Edge Clamp, Stainless Steel, 25mm Diameter (Two Clamps Required), M6 Screw PSC-10	Stainless Steel	M6	6-12 weeks	£6.10
Pedestal Fork Clamp, Black-Anodized Aluminum, 22mm Slot, 1/4-20 Screw PSCA-11.5UU	Aluminum (Black Anodized)	1/4-20UNC	3-5 days	£8.40
Heavy-Duty Pedestal Fork Clamp, Stainless Steel, 25.4mm Slot, 1/4-20 Screw 149-0070	Stainless Steel	1/4-20UNC	6-12 weeks	-	Out of stock
Pedestal Edge Clamp, Stainless Steel, 25mm Diameter, (Two Clamps Required), 1/4-20 Screw PSC-10UU	Stainless Steel	1/4-20UNC	3-5 days	£7.00
Pedestal Fork Clamp, Stainless Steel, 25.4mm Slot, M6 Screw PSCS-11.5	Stainless Steel	M6	3-5 days	£11.70
Heavy-Duty Pedestal Fork Clamp, Stainless Steel, 25.4mm Slot, M6 Screw 149-0075	Stainless Steel	M6	6-12 weeks	-	Out of stock

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