/ Precision Measuring Tools / Precision Hand Tools / Indicators & Gages / Indicator Accessories / PT06836S * Not actual product image 72223 PT06836S Screw-Type Lug (#3/8-24 Thread) Indicator Back 72223 Other similar products Screw-Type Lug Back for No. 81 Series, #3/8-24 Thread. Features Specifications Contact Starrett Features Starrett Indicator backs are well designed All Steel Construction Specifications Fits Starrett Series: 81