Right Angle Boss Head Right angle boss head is made of cast iron and is powder coated with plastic screws and pin-type screw are available. SKU: CLT058 Product Description Robustness. Highly durable. Perfectly designed. Related Items: Aspirator Bottle Polypropylene Reagent Bottle With Glass Stopper Single Adjustment Four Prong With Boss Head Double Adjustment Two Prong << return to products