Item #: 06886014Brand: TE-COModel #: 90420 Features and Benefits Lobed head types have rounded points protruding from the core of the head. The valleys between the points allow for easy gripping and tightening by hand. Steel is strong and durable but less corrosion resistant than stainless steel. To improve its resistance to corrosion, it may receive additional finishes and coatings. Product Specifications Thumb Screws & Hand Knobs; System of Measurement: Inch ; Thread Size: 1/4-20 ; Head Type: Lobed ; Shoulder Type: Shoulder ; Tip Type: Dog Point ; Material: Steel System of Measurement Inch Thread Size 1/4-20 Head Type Lobed Shoulder Type Shoulder Tip Type Dog Point Material Steel Finish/Coating Black Oxide Head Diameter (Inch) 1-1/8 Head Height (Inch) 3/4 Thread Standard UNC Head Material Aluminum Tip Length (Inch) 1/8 Tip Diameter (Inch) 5/32 Tip Material Steel