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Standard Post Holders Include a Spring-Loaded Thumbscrew that Holds Posts in Place Before Tightening

• Aluminum, Spring-Loaded, Hex-Locking Thumbscrew (3/16" or 5 mm) for Positioning Ease
• Extra Wide Relief Cut Provides a Two-Line Stable Contact for Post
• 1/4"-20 (M6) Tapped Hole on Bottom
• Packs of 5 Also Available for 1" to 4" Lengths (20 mm to 100 mm)

These standard post holders are designed with a wide, square relief cut that provides two lines of contact for highly stable post mounting. A spring-loaded plunger within the aluminum thumbscrew holds a steel post firmly within the post holder prior to final tightening. This design allows one-handed positioning of post-mounted devices. Thorlabs' imperial and m etric post holders are equipped with our 3/16" (TS25H) and 5 mm (TS6H/M) spring-loaded hex-locking thumbscrews, respectively (also available separately below). The post holders are compatible with our entire line of table bases and the BE1(/M) and BE1R(/M) base adapters (sold separately below).